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Corpsman

Corpsman

Hospital Corpsmen (HMs) are members of the United States Navy Hospital Corps. They serve as enlisted medical personnel. Corpsmen serve in a wide variety of capacities and locations, including shore establishments such as naval hospitals and clinics, aboard ships as the primary medical caregiver for sailors while underway, or with Marine Corps units as battlefield medics.

History

The hospital corps has, after a fashion, been a part of the United States Naval service since 1799 when a provision of congress was instituted service-wide to include a surgeon's assistant on all ships of the fleet. The title of this specialty of training, also known as Rate in naval terminology, has changed over the years from loblolly boy, surgeon's steward, apothecary and bayman, the latter three all requiring the rate holder to be a recipient of some private medical instruction. On 17 June 1898, by act of congress, the Hospital Corps was established, though the actual name of the servicemen under that rating would change several times (being known as "Pharmacist's Mates" throughout the World Wars) before ultimately becoming simply "Hospital Corpsman".

Organization

Due to the vast array of foreign, domestic and shipboard duty stations in which hospital corpsman are called to serve as well as the fact that the United States Marine Corps has no medical personnel of their own, the hospital corps is anecdotally reported to be the largest rating in the United States Navy. That is, the duty classification held by more United States naval personnel than any other. Within the rating of Hospital Corpsman are a number of "C" schools a Corpsman can apply to attend. Each "C" school has an associated NEC (Navy Enlisted Classification) associated with it. The basic Hospital Corpsman training is termed as one of the Navy's "A" or primary training schools, the NEC code for a corpsman who has attended no "C" school is 0000 called "quad-zero". A "C" school is a secondary, usually longer, specialized training. In the case of hospital corpsmen, this training is to prepare the sailor for some more distinct duty such as Medical Laboratory Technician, Radiology Technician, Aviation/Aerospace Medicine Specialist, etc. The day to day duties of a Hospital Corpsman depends largely on what "C" schools he/she has attended and to what sort of unit he/she has been assigned. All Navy rates have "A" and "C" schools and respective NEC codes. NEC is essentially analagous to MOS in the United States Army, Air-Force and Marine Corps. Of note is Field Medical Service School (FMSS), with locations at Camp Pendleton and Camp Lejeune, where sailors bound for service with United States Marine Corps operating forces attend to earn the NEC 8404, Field Medical Service Technician. This is specialized training emphasizing physical conditioning, small arms familiarity, and the fundamentals of Marine Corps life to make up for the lack of traditional field training that Corpsmen receive at naval boot camp. The course is currently (2005) seven weeks long. There are primary NECs, and secondary NECs. For example, a Corpsman could hold the 0000 (General Duty Corpsman) NEC as their primary, while the 8404 (Field Medical Technician) would be their secondary NEC. Be they assigned to hospital ships, reservist installations, recruiter offices, Marine Corps combat units or functioning as Navy SEALs, the rating of Hospital Corpsman is the most decorated in the United States Navy with at least 22 Medals of Honor (half of all Medals of Honor awarded to the Department of the Navy), 174 Navy Crosses, 31 Distinguished Service Medals, 943 Silver Stars, and 1553 Bronze Stars. [http://www.mayportmirror.com/stories/061903/may_hospitalcorps001.shtml] There have been 14 naval vessels that have been named after Hospital Corpsmen.

Hospital Corpsman Pledge

"I solemnly pledge myself before God and these witnesses to practice faithfully all of my duties as a member of the Hospital Corps. I hold the care of the sick and injured to be a privilege and a sacred trust and will assist the Medical Officer with loyalty and honesty. I will not knowingly permit harm to come to any patient. I will not partake of nor administer any unauthorized medication. I will hold all personal matters pertaining to the private lives of patients in strict confidence. I dedicate my heart, mind and strength to the work before me. I shall do all within my power to show in myself an example of all that is honorable and good throughout my naval career." Category:Military medicine

External Links

---- [http://usmilitary.about.com/od/enlistedjob1/a/hm.htm Hospital Corspman HM] ----

Medicine

Medicine is a branch of health science concerned with maintaining human health and restoring it by treating disease and injury; it is both an area of knowledge, a science of body systems and diseases and their treatment, and the applied practice of that knowledge. The practice of medical care is shared between the medical profession—physicians or doctors—and other groups of professionals, such as nurses or pharmacists (sometimes called allied health professions). Historically, only members of the medical profession proper have been considered to actually practice medicine in the strictest sense, in contrast to the allied fields of health care professionals. Clinicians can be physicians, nurses, or physician assistants -- those who provide health care or otherwise tend to their patients. The medical profession is the social and occupational structure of the group of people formally trained and authorized to apply medical knowledge. Many countries and legal jurisdictions have legal limitations on who may practice medicine or the allied medical fields. Medicine is typically seen as composed of various specialized sub-branches, such as pediatrics, gynecology, neurology, dealing with particular body systems, diseases, or areas of health. Systems of medical and healthcare practices have existed among human societies since at least the dawn of recorded history. These systems have developed in various ways in different cultures and regions. Medicine as understood in the modern period has historically been considered to be the mainstream tradition which developed in the Western world since the early modern age. Many other traditions of medicine and healthcare are still widely practiced throughout the world, most of which are still considered to be separate and distinct from Western medicine, also called biomedicine or the Hippocratic tradition. The most highly developed systems of medicine outside the Western system are the Ayurvedic tradition of India and traditional Chinese medicine. Various non-mainstream traditions of health care have also developed in the Western world distinct from mainstream medicine. The various other systems practiced among various cultures are sometimes practiced alongside or in cooperation with Western medicine, while sometimes being seen as competing traditions. Medicine is also often used amongst medical professionals as shorthand for Internal Medicine. Veterinary medicine is the practice of health care specialized for other animal species.

History of medicine

Medicine as it is practiced now is rooted in various traditions, but developed mainly in the late 18th and early 19th century in Germany (Rudolf Virchow) and France (Jean-Martin Charcot, Claude Bernard and others). The new, "scientific" medicine replaced earlier Western traditions of medicine, mostly based on the "four humours" and other pre-modern theories. The focal points of development of clinical medicine shifted to the United Kingdom and the USA by the early 1900s (Sir William Osler, Harvey Cushing). Evidence-based medicine is the recent movement to link the practice and the science of medicine more closely through the use of the scientific method and modern information science. Genomics and knowledge of human genetics is already having a large influence on medicine, as the causative genes of most monogenic genetic disorders have now identified, and the development of techniques in molecular biology and genetics are influencing medical practice and decision-making.

Practice of medicine

The practice of medicine combines both science and art. Science and technology are the evidence base for many clinical problems for the general population at large. The art of medicine is the application of this medical knowledge in combination with intuition and clinical judgment to determine the proper diagnoses and treatment plan for this unique patient and to treat the patient accordingly. Central to medicine is the patient-doctor relationship established when a person with a health concern or problem seeks the help of a physician (i.e. the medical encounter). Other health professionals similarly establish a relationship with a patient and may perform interventions from their perspective, e.g. nurses, radiographers and therapists. As part of the medical encounter, the doctor needs to:
- develop a relationship with the patient
- gather data (medical history and physical examination combined with laboratory or imaging studies)
- analyze and synthesize that data (assessment and/or differential diagnosis), and then
- develop a treatment plan (further testing, therapy, watchful observation, referral and follow-up)
- treat the patient accordingly
- assess the progress of treatment and alter the plan as necessary. The medical encounter is documented in a medical record, which is a legal document in many jurisdictions. One method that is used is called the problem-oriented medical record (POMR), which includes a problem list of diagnoses and a "SOAP" method of documentation for each visit:
- S - Subjective, the medical history of the problem from the point-of-view of the patient.
- O - Objective, the physical examination and any laboratory or imaging studies.
- A - Assessment, is the medical decision-making process including the differential diagnoses and most probable diagnoses.
- P - Plan, the way resolve the problem and monitor progress

Medical systems

Medicine is practiced within the medical system of a particular culture or government. Leaving aside tribal cultures, the most significant divide in developed countries is that between universal health care and the market based health care (such as practiced in the U.S.).

Patient-doctor relationship

The doctor-patient relationship and interaction is a central process in the practice of medicine. There are many perspectives from which to understand and describe it. An idealized physician's perspective, such as is taught in medical school, sees the core aspects of the process as the physician learning from the patient his symptoms, concerns and values; in response the physician examines the patient, interprets the symptoms, and formulates a diagnosis to explain the symptoms and their cause to the patient and to propose a treatment. In more detail, the patient presents a set of complaints or concerns about his health to the doctor, who then obtains further information about the patient's symptoms, previous state of health, living conditions, and so forth, and then formulates a diagnosis and enlists the patient's agreement to a treatment plan. Importantly, during this process the doctor educates the patient about the causes, progression, outcomes, and possible treatments of his ailments, as well as often providing advice for maintaining health. This teaching relationship is the basis of calling the physician doctor, which originally meant "teacher" in Latin. The patient-doctor relationship is additionally complicated by the patient's suffering (patient derives from the Latin patiens, "suffering") and limited ability to relieve it on his own. The doctor's expertise comes from his knowledge about, or experience with, other people who have suffered similar symptoms, and his presumed ability to relieve it with medicines or other therapies about which the patient may initially have little knowledge. The doctor-patient relationship can be analyzed from the perspective of ethical concerns, in terms of how well the goals of non-maleficence, beneficence, autonomy, and justice are achieved. Many other values and ethical issues can be added to these. In different societies, periods, and cultures, different values may be assigned different priorities. For example, in the last 30 years medical care in the Western World has increasingly emphasized patient autonomy in decision making. The relationship and process can also be analyzed in terms of social power relationships (e.g., by Michel Foucault), or economic transactions. Physicians have been accorded gradually higher status and respect over the last century, and they have been entrusted with control of access to prescription medicines as a public health measure. This represents a concentration of power and carries both advantages and disadvantages to particular kinds of patients with particular kinds of conditions. A further twist has occurred in the last 25 years as costs of medical care have risen, and a third party (an insurance company or government agency) now often insists upon a share of decision-making power for a variety of reasons, reducing freedom of choice of both doctors and patients in many ways. The quality of the patient-doctor relationship is important to both parties. The better the relationship in terms of mutual respect, knowledge, trust, shared values and perspectives about disease and life, and time available, the better will be the amount and quality of information about the patient's disease transferred in both directions, enhancing accuracy of diagnosis and increasing the patient's knowledge about the disease. In some settings, e.g. the hospital ward, the patient-doctor relationship is much more complex, and many other people are involved when somebody is ill: relatives, neighbors, rescue specialists, nurses, technical personnel, social workers and others.

Clinical skills

Main articles: Medical history, Physical examination. A complete medical evaluation includes a medical history, a physical examination, appropriate laboratory or imaging studies, analysis of data and medical decision making to obtain diagnoses, and treatment plan. The components of the medical history are:
- Chief complaint (CC) - the reason for the current medical visit.
- History of present illness (HPI) - the chronological order of events of symptoms. A mnemonic PQRST is sometimes helpful in obtaining the history:
  - Provocative-palliative factors - what makes a symptom worse or better.
  - Quality - description of the symptom
  - Region - which part of the body is affected
  - Severity - what is the intensity of the symptom; using a scale of 0-10 (10 worst)
  - Timing - what is the course of the symptom
- Current activity - occupation, hobbies, what the patient actually does.
- Medications - what drugs including OTCs, and home remedies, as well as herbal remedies such as St. John's Wort. Allergies are recorded.
- Past medical history (PMH/PMHx) - other medical diagnoses, past hospitalizations and operations, injuries, past infectious diseases and/or vaccinations, history of known allergies.
- Review of systems (ROS) - an outline of additional symptoms to ask which may be missed on HPI, generally following the body's main organ systems (heart, lungs, digestive tract, urinary tract, etc).
- Social history (SH) - birthplace, residences, marital history, social and economic status, habits (including diet, medications, tobacco, alcohol).
- Family history (FH) - listing of diseases in the family that may impact the patient. A family tree is sometimes used. The physical examination is the examination of the patient looking for signs of disease. The doctor uses his senses of sight, hearing, touch, and sometimes smell (taste has been made redundant by the availability of modern lab tests). Four chief methods are used: inspection, palpation, percussion, and auscultation; smelling may be useful (e.g. infection, uremia, diabetic ketoacidosis). The clinical examination involves study of:
- Vital signs include height, weight, body temperature, blood pressure, pulse, respiration rate, hemoglobin oxygen saturation
- General appearance of the patient
- Skin
- Head, eye, ear, nose, and throat (HEENT)
- Cardiovascular - heart and blood vessels
- Respiratory - lungs
- Abdomen and rectosigmoid
- Genitalia
- Spine and extremities - musculoskeletal
- Neurological and psychiatric Laboratory and imaging studies results may be obtained, if ncessary. The medical decision-making (MDM) process involves analysis and synthesis of all the above data to come up with a list of possible diagnoses (the differential diagnoses), along with an idea of what needs to be done to obtain a definitive diagnosis that would explain the patient's problem. The treatment plan may include ordering additional laboratory tests and studies, starting therapy, referral to a specialist, or watchful observation. Follow-up may be advised. This process is used by primary care providers as well as specialists. It may take only a few minutes if the problem is simple and straightforward. On the other hand, it may take weeks in a patient who has been hospitalized with multi-system problems, with involvement by several specialists. On subsequent visits, the process may be repeated in an abbreviated manner to obtain any new history, symptoms, physical findings, and lab or imaging results or specialist consultations.

Settings where medical care is delivered

See also clinic, hospital, and hospice Medicine is a diverse field and the provision of medical care is therefore provided in a variety of locations. Primary care medical services are provided by physicians or other health professionals who has first contact with a patient seeking medical treatment or care. These occur in physician's office, clinics, nursing homes, schools, home visits and other places close to patients. About 90% of medical visits can be treated by the primary care provider. These include treatment of acute and chronic illnesses, preventive care and health education for all ages and both sex. Secondary care medical services are provided by medical specialists in their offices or clinics or at local community hospitals for a patient referred by a primary care provider who first diagnosed or treated the patient. Referrals are made for those patients who required the expertise or procedures performed by specialists. These include both ambulatory care and inpatient services, emergency rooms, intensive care medicine, surgery services, physical therapy, labor and delivery, endoscopy units, diagnostic laboratory and medical imaging services, hospice centers, etc. Some primary care providers may also take care of hospitalized patients and deliver babies in a secondary care setting. Tertiary care medical services are provided by specialist hospitals or regional centers equipped with diagnostic and treatment facilities not generally available at local hospitals. These include trauma centers, burn treatment centers, advanced neonatology unit services, organ transplants, high-risk pregnancy, radiation oncology, etc. Modern medical care also depends on information - still delivered in many health care settings on paper records, but increasingly nowadays by electronic means.

Branches of medicine

Working together as an interdisciplinary team, many highly trained health professionals besides medical practitioners are involved in the delivery of modern health care. Some examples include: nurses, laboratory scientists, pharmacists, physiotherapists, speech therapists, occupational therapists, dietitians and bioengineers. The scope and sciences underpinning human medicine overlap many other fields. Dentistry and psychology, while separate disciplines from medicine, are sometimes also considered medical fields. Physician assistants, nurse practitioners and midwives treat patients and prescribe medication in many legal jurisdictions. Veterinary medicine applies similar techniques to the care of animals. Medical doctors have many specializations and subspecializations which are listed below.

Basic sciences


- Anatomy is the study of the physical structure of organisms. In contrast to macroscopic or gross anatomy, cytology and histology are concerned with microscopic structures.
- Biochemistry is the study of the chemistry taking place in living organisms, especially the structure and function of their chemical components.
- Biostatistics is the application of statistics to biological fields in the broadest sense. A knowledge of biostatistics is essential in the planning, evaluation, and interpretation of medical research. It is also fundamental to epidemiology and evidence-based medicine.
- Cytology is the microscopic study of individual cells.
- Embryology is the study of the early development of organisms.
- Epidemiology is the study of the demographics of disease processes, and includes, but is not limited to, the study of epidemics.
- Genetics is the study of genes, and their role in biological inheritance.
- Histology is the study of the structures of biological tissues by light microscopy, electron microscopy and immunohistochemistry.
- Immunology is the study of the immune system, which includes the innate and adaptive immune system in human, for example.
- Microbiology is the study of microorganisms, including protozoa, bacteria, fungi, and viruses.
- Neuroscience is a comprehensive term for those disciplines of science that are related to the study of the nervous system. A main focus of neuroscience is the biology and physiology of the human brain.
- Nutrition is the study of the relationship of food and drink to health and disease, especially in determining an optimal diet. Medical nutrition therapy is done by dietitians and is prescribed for diabetes, cardiovascular diseases, weight and eating disorders, allergies, malnutrition and neoplastic diseases.
- Pathology is the study of disease - the causes, course, progression and resolution thereof.
- Pharmacology is the study of drugs and their actions.
- Physiology is the study of the normal functioning of the body and the underlying regulatory mechanisms.
- Toxicology is the study of hazardous effects of drugs and poisons.

Diagnostic specialties


- Clinical laboratory sciences are the clinical diagnostic services which apply laboratory techniques to diagnosis and management of patients. In the United States these services are supervised by a Pathologist. The personnel that work in these medical laboratory departments are technically trained staff, each of whom usually hold a medical technology degree, who actually perform the tests, assays, and procedures needed for providing the specific services.
  - Transfusion medicine is concerned with the transfusion of blood and blood component, including the maintenance of a "blood bank".
  - Cellular pathology is concerned with diagnosis using samples from patients taken as tissues and cells using histology and cytology.
  - Clinical chemistry is concerned with diagnosis by making biochemical analysis of blood, body fluids and tissues.
  - Hematology is concerned with diagnosis by looking at changes in the cellular composition of the blood and bone marrow as well as the coagulation system in the blood.
  - Clinical microbiology is concerned with the in vitro diagnosis of diseases caused by bacteria, viruses, fungi, and parasites.
  - Clinical immunology is concerned with disorders of the immune system and related body defenses. It also deals with diagnosis of allergy.
- Radiology is concerned with imaging of the human body, e.g. by x-rays, x-ray computed tomography, ultrasonography, and nuclear magnetic resonance tomography.
  - Interventional radiology is concerned with using imaging of the human body, usually from CT, ultrasound, or fluoroscopy, to do biopsies, place certain tubes, and perform intravascular procedures.
  - Nuclear Medicine uses radioactive substances for in vivo and in vitro diagnosis using either imaging of the location of radioactive substances placed into a patient, or using in vitro diagnostic tests utilizing radioactive substances.

Clinical disciplines


- Anesthesiology (AE), Anaesthesia (BE), is the clinical discipline concerned with providing anesthesia. Pain medicine is often practiced by specialised anesthesiologists.
- Dermatology is concerned with the skin and its diseases.
- Emergency medicine is concerned with the diagnosis and treatment of acute or life-threatening conditions, including trauma, surgical, medical, pediatric, and psychiatric emergencies.
- General practice, Family practice, family medicine or primary care is, in many countries, the first port-of-call for patients with non-emergency medical problems. Family doctors are usually able to treat over 90% of all complaints without referring to specialists.
- Hospital medicine is the general medical care of hospitalized patients. Doctors whose primary professional focus is hospital medicine are called hospitalists.
- Internal medicine is concerned with systemic diseases of adults, i.e. those diseases that affect the body as a whole , (restrictive ,current meaning) or with all adult non-operative somatic medicine (traditional , inclusive meaning) , thus excluding pediatrics , surgery , gynaecology & obstetrics and psychiatry. There are several subdisciplines of internal medicine:
  - Cardiology is concerned with the heart and cardiovascular system and their diseases.
  - Critical care medicine is concerned with the therapy of patients with serious and life-threatening disease or injury. Intensive care medicine employs invasive diagnostic techniques and (temporary) replacement of organ functions by technical means. Also known as Intensive care medicine. This field is often associated with Pulmonology.
  - Endocrinology is concerned with the endocrine system, i.e. endocrine glands and hormones, usually Diabetes or Thyroid diseases.
  - Gastroenterology is concerned with the alimentary tract.
  - Geriatrics is concerned with medical care of the elderly.
  - Hematology (or haematology) is concerned with the blood and its diseases.
  - Hepatology is concerned with the liver and biliary tract, and is usually a part of Gastroenterology
  - Infectious diseases is concerned with the study, diagnosis and treatment of diseases caused by biological agents.
  - Nephrology is concerned with diseases of the kidneys.
  - Oncology is devoted to the study, diagnosis and treatment of cancer and other malignant diseases, and is often grouped with Hematology.
  - Pulmonology (or chest medicine, respiratory medicine or lung medicine) is concerned with diseases of the lungs and the respiratory system.
  - Rheumatology is devoted to the diagnosis and treatment of inflammatory diseases of the joints and other organ systems, such as arthritis.
- Neurology is concerned with the diagnosis and treatment of nervous system diseases.
- Obstetrics and Gynecology (often abbreviated as Ob/Gyn) are concerned respectively with childbirth and the female reproductive and associated organs. Reproductive medicine and fertility medicine are generally practiced by gynecological specialists.
- Palliative care is a relatively modern branch of clinical medicine that deals with pain and symptom relief and emotional support in patients with terminal diseases (cancer, heart failure).
- Pediatrics (or paediatrics) is devoted to the care of infants, children, and adolescents. Like internal medicine, there are many pediatric subspecialities for specific age ranges, organ systems, disease classes and sites of care delivery. Most subspecialities of adult medicine have a pediatric equivalent such as pediatric cardiology, pediatric endocrinology, pediatric gastroenterology, pediatric hematology, and pediatric oncology, pediatric ophthalmology, and neonatology.
- Physical medicine and rehabilitation (or physiatry) is concerned with functional improvement after injury, illness, or congenital abnormality.
- Preventive medicine is the branch of medicine concerned with preventing disease.
  - Community health care or public health is an aspect of health services concerned with threats to the overall health of a community based on population health analysis.
  - Occupational medicines principal role is the provision of health advice to organisations and individuals to ensure that the highest standards of health and safety at work can be achieved and maintained.
- Psychiatry is a branch of medicine that studies and treats mental disorders. Related non-medical fields are psychotherapy and clinical psychology. There are several subdisciplines of Psychiatry:
  - Child & adolescent psychiatry focuses on the care of children and adolescents with mental/emotional/learning problems (i.e., ADHD, Autism, family conflicts).
  - Geriatric psychiatry focuses on the care of elderly people with mental illnesses (i.e., dementias, post stroke cognitive changes, depression).
  - Addiction psychiatry focuses on substance abuse and its treatment.
  - Forensic psychiatry focuses on the interface of psychiatry and the Law.
- Radiation therapy is concerned with the therapeutic use of ionizing radiation and high energy elementary particle beams in patient treatment.
- Surgical specialties - there are many medical disciplines that employ operative treatment. Some of these are highly specialized and are often not considered subdisciplines of surgery, although their naming might suggest so.
  - General surgery is traditionally defined as the specialty of surgery of the skin, endocrine glands, and abdomen (and, sometimes, the mammary glands). In some countries, it is still deemed a pre-requisite training prior to progression to training in certain sub-specialties, but lately has evolved into its own sub-specialty.
  - Cardiovascular surgery is the surgical specialty that is concerned with the heart and major blood vessels of the chest.
  - Neurosurgery is concerned with the operative treatment of diseases of the nervous system.
  - Maxillofacial surgery (technically a subspeciality of dentistry)
  - Ophthalmology deals with the diseases of the eyes and their treatment.
  - Orthopedic surgery consists on surgery of the locomotor system.
  - Otolaryngology (or otorhinolaryngology or ENT/ear-nose-throat) is concerned with treatment of ear, nose and throat disorders. The term head and neck surgery defines a closely related specialty which is concerned mainly with the surgical management of cancer of the same anatomical structures.
  - Pediatric surgery treats a wide variety of thoracic and abdominal (and sometimes urologic) diseases of childhood.
  - Plastic surgery includes aesthetic surgery (operations that are done for other than medical purposes) as well as reconstructive surgery (operations to restore function and/or appearance after traumatic or operative mutilation).
  - Surgical oncology is concerned with curative and palliative surgical approaches to cancer treatment.
  - Urology focuses on the urinary tracts of males and females, and on the male reproductive system. It is often practiced together with andrology ("men's health").
  - Vascular surgery is surgery of "peripheral" blood vessels, i.e. those outside of the chest (usually operated on by cardiovascular surgeons) and of the central nervous system (treated by neurosurgery).
- Urgent Care focuses on delivery of unscheduled, walk-in care outside of the hospital emergency department for injuries and illnesses that are not severe enough to require care in an emergency department.

Interdisciplinary fields

Interdisciplinary sub-specialties of medicine are:
- Aerospace medicine deals with medical problems related to flying and space travel.
- Bioethics is a field of study which concerns the relationship between biology, science, medicine and ethics, philosophy and theology.
- Clinical pharmacology is concerned with how systems of therapeutics interact with patients.
- Conservation medicine studies the relationship between human and animal health, and environmental conditions. Also known as ecological medicine, environmental medicine, or medical geology.
- Diving medicine (or hyperbaric medicine) is the prevention and treatment of diving-related problems.
- Evolutionary medicine is a perspective on medicine derived through applying evolutionary theory.
- Forensic medicine deals with medical questions in legal context, such as determination of the time and cause of death.
- Medical humanities includes the humanities (literature, philosophy, ethics, history and religion), social science (anthropology, cultural studies, psychology, sociology), and the arts (literature, theater, film, and visual arts) and their application to medical education and practice.
- Medical informatics and medical computer science are relatively recent fields that deal with the application of computers and information technology to medicine.
- Nosology is the classification of diseases for various purposes.
- Sports medicine deals with the treatment and preventive care of athletics, amateur and professional. The team includes specialty physicians and surgeons, athletic trainers, physical therapists, coaches, other personnel, and, of course, the athlete.
- Therapeutics is the field, more commonly referenced in earlier periods of history, of the various remedies that can be used to treat disease and promote health [http://2.1911encyclopedia.org/T/TH/THERAPEUTICS.htm] [http://www.britannica.com/eb/article-9106176?query=Therapeutics&ct=].
- Travel medicine or emporiatrics deals with health problems of international travelers or travelers across highly different evironments.

Medical education

See also Medical doctor (BE), Physician (AE), and Medical school. Medical training involves several years of university study followed by several more years of residential practice at a hospital. Entry to a medical degree in some countries (such as the United States) requires the completion of another degree first, while in other countries (such as the United Kingdom, Australia and New Zealand) medical training can be commenced as an undergraduate degree immediately after secondary education. The name of the medical degree gained at the end varies: some countries (e.g. the US) call it "Doctor of Medicine" (abbreviated 'M.D.'), while other countries (mostly following the British Oxbridge system) call it "Medicinæ Baccalaureus & Baccalaureus Chirurgiæ" (Latin for "Bachelor of Medicine/Bachelor of Surgery", Old English: "Chirurgie"); this is technically a double degree, frequently abbreviated 'MB BChir', 'MB ChB', 'MB BS' (or variations thereof), dependent on the medical school. In either case, graduates of a medical degree may call themselves physician. In the US and some other countries there is a parallel system of medicine which is equal in all aspects of education, legality, and practice to M.D.'s. It is called osteopathic medicine (generic term: "osteopathy") which awards the degree of "Doctor of Osteopathic Medicine" (abbreviated 'D.O.'). In many countries, a doctorate of medicine does not involve original research as does, in distinction, a Ph.D.. Once graduated from medical school most physicians (both M.D.'s and D.O.'s) begin their residency/house post training, where skills in a speciality of medicine are learned, supervised by more experienced doctors. The first year of residency is known as the "intern" year (USA) or "junior/pre-registration house officer" year (UK). The duration of residency training depends on the speciality. A medical graduate can then enter general practice and become a general practitioner (or primary care internist in the USA); training for these is generally shorter, while specialist training is typically longer. Medical education is a never ending endeavor. In addition to continually reading relevant medical journals, physicians require a number of continuing medical education (CME)credits annually to be recertified. These can be acquired by attending conferences, lectures, online, and through other sources.

Medical devices

See also the main articles: implant, artificial limbs, corrective lenses, cochlear implants, ocular prosthetics, facial prosthetics, somato prosthetics, surgical prosthetics, maxillo-facial prosthetics and dental implants Medical devices are devices used by health professionals as tools in diagnosis, treatment, or other aspects of patient care.

Legal restrictions

In most countries, it is a legal requirement for medical doctors to be licensed or registered. In general, this entails a medical degree from a university and accreditation by a medical board or an equivalent national organization, which may ask the applicant to pass exams. This restricts the considerable legal authority of the medical profession to doctors that are trained and qualified by national standards. It is also intended as an assurance to patients and as a safeguard against charlatans that practice inadequate medicine for personal gain. While the laws generally require medical doctors to be trained in "evidence based", Western, or Hippocratic Medicine, they are not intended to discourage different paradigms of health and healing, such as alternative medicine or faith healing.

Criticism

Criticism of medicine has a long history. In the Middle Ages, it was not considered a profession suitable for Christians, as disease was considered Godsent, and interfering with the process a form of blasphemy. Barber-surgeons generally had a bad reputation that was not to improve until the development of academic surgery as a speciality of medicine, rather than an accessory field. Through the course of the twentieth century, doctors focused increasingly on the technology that was enabling them to make dramatic improvements in patients' health. The ensuing development of a more mechanistic, detached practice, with the perception of an attendent loss of patient-focused care led to further criticisms. This issue started to reach collective professional consciousness in the 1970s and the profession had begun to respond by the 1980s and 1990s. Perhaps the most devastating criticism of modern medicine came from Ivan Illich, in his 1976 work Medical Nemesis. In his view, modern medicine only medicalises disease, causing loss of health and wellness, while generally failing to restore health by eliminating disease. The human being thus becomes a lifelong patient. Other less radical philosophers have voiced similar views, but none were as virulent as Illich. (Another example can be found in Technopoly: The Surrender of Culture to Technology by Neil Postman, 1992, which criticises overreliance on technological means in medicine.) Criticism of modern medicine has led to some improvements in the curricula of medical schools, which now teach students systematically on medical ethics, holistic approaches to medicine, the biopsychosocial model and similar concepts. The inability of modern medicine to properly address many common complaints continues to prompt many people to seek support from alternative medicine. Although most alternative approaches lack scientific validation, some report improvement of symptoms after obtaining alternative therapies. The bioscience medical paradigm and the alternative / complementary healthcare paradigms may differ to such an extent that what constitutes scientific evidence is contested. Many medical doctors also practice alternative medicine alongside the orthodox. Medical errors are also the focus of many complaints and negative coverage. Practitioners of human factors engineering believe that there is much that medicine may usefully gain by emulating concepts in aviation safety, where it was long ago realized that it is dangerous to place too much responsibility on one "superhuman" individual and expect him or her not to make errors. Reporting systems and checking mechanisms are becoming more common in identifying sources of error and improving practice. Radical critics of certain medical traditions may hold that whole fields or traditions of medicine are intrinsically harmful or ineffective. They would reject any use or support of practices belonging to that tradition. However, generally, there is spectrum of efficacy on which all traditions lie; some are more effective, some are less effective, but nearly all contain some harmful practices and some effective ones. Naturally, though, most individuals or groups seeking a healthcare practice to improve their own health would seek a tradition with the maximum degree of efficacy.

See also


- Academic conference
- Big killers
- Complementary and alternative medicine
- Health profession
- Healthcare system
- Iatrogenesis (ill health caused by medical treatment)
- List of diseases
- List of medical abbreviations
- List of medical schools
- Important publications in medicine
- Medical equipment
- Rare diseases

External links


- [http://home.planet.nl/~hend2438/MOTW/index.htm Medicine on the Web]
- [http://www.nlm.nih.gov NLM] (National Library of Medicine, contains resources for patients and healthcare professionals)
- [http://www.vh.org Virtual Hospital] (digital health sciences library by the University of Iowa)
- [http://cancerweb.ncl.ac.uk/omd/index.html Online Medical Information]- medical news, links and resources.
- [http://www.medmark.org Online Medical Directory]
- [http://www.wikimd.org/index.php?title=Free_Medical_Resources Collection of links to free medical resources] fiu-vro:Arstitiidüs als:Medizin zh-min-nan:I-ha̍k ko:의학 ja:医学 simple:Medicine th:แพทยศาสตร์

1799

1799 was a common year starting on Tuesday (see link for calendar).

Events


- March 1 - Federalist James Ross becomes President Pro Tempore of the United States Senate.
- March 7 - Napoleon captures Jaffa in Palestine and his troops proceed to kill more than 2,000 Albanian captives.
- March 29 - New York passes a law aimed at gradually abolishing slavery in the state.
- July 7 - Ranjit Singh's men had taken their positions outside Lahore.
- July 15 - In the Egyptian port city of Rosetta, French Captain Pierre Bouchard finds the Rosetta Stone.
- July 25 - At Aboukir in Egypt, Napoleon I of France defeats 10,000 Ottoman Mamluk troops under Mustafa Pasha.
- November 9 - Napoleon overthrows the French Directory.
- December - Napoleon becomes First Consul.
- The Dutch East India Company is dissolved.
- The Place Royale in Paris is renamed Place des Vosges when the Department of Vosges becomes the first to pay new Revolutionary taxes.
- The American System of manufacturing is invented.

Ongoing events


- French Revolution (1789-1799)
- French Revolutionary Wars (1792-1802)-Second Coalition/Egyptian Campaign
- Napoleonic Wars (1799-1815)-Second Coalition/Egyptian Campaign

Births


- January 6 - Jedediah Smith, American fur trapper and explorer (d. 1831)
- January 31 - Rodolphe Töpffer, Swiss teacher, author, and artist (d. 1846)
- April 12 - Henri Druey, Swiss Federal Councilor (d. 1855)
- May 13 - Catherine Gore, English author (d. 1861)
- May 20- Honoré de Balzac, French author (d. 1850)
- May 21 - Mary Anning, British paleontologist (d. 1847)
- June 6 - Aleksandr Pushkin, Russian author (d. 1837)
- July 4 - King Oscar I of Sweden and Norway (d. 1859)
- June 18 - Prosper Ménière, French physician (d. 1862)
- September 8 - James Bowman Lindsay, Scottish inventor (d. 1862)
- November 1 - Thomas Baldwin Marsh, American religious leader (d. 1866)
- December 30 - David Douglas, Scottish botanist (d. 1834)
- James Townsend Saward, English barrister and forger
- Alexei Fyodorovich Lvov, Russian composer

Deaths


- January 9 - Maria Gaetana Agnesi, Italian mathematician (b. 1718)
- January 26 - Gabriel Christie, British general (b. 1722)
- February 6 - Étienne-Louis Boullée, French architect (b. 1728)
- February 7 - Qianlong Emperor of China (b. 1711)
- February 19 - Jean-Charles de Borda, French mathematician, physicist, political scientist, and sailor (b. 1733)
- May 4 - Tipu Sultan, Indian ruler (b. 1750)
- May 18 - Pierre Beaumarchais, French writer (b. 1732)
- May 26 - James Burnett, Lord Monboddo, Scottish judge (b. 1714)
- May 31 - Pierre Charles Le Monnier, French astronomer (b. 1715)
- June 6 - Patrick Henry, American revolutionary politician (b. 1736)
- August 2 - Jacques Étienne Montgolfier, French inventor (b. 1745)
- August 4 - John Bacon, British sculptor (b. 1740)
- August 5 - Richard Howe, British admiral (b. 1726)
- August 29 - Pope Pius VI (b. 1717)
- August 31 - Nicolas-Henri Jardin, French architect (b. 1720)
- September 7 - Louis Guillaume Lemonnier, French botanist (b. 1717)
- October 6 - William Withering, British physician (b. 1741)
- October 24 - Carl Ditters von Dittersdorf, Austrian composer (b. 1739)
- December 14 - George Washington, first President of the United States (b. 1732)
- December 18 - Jean-Étienne Montucla, French mathematician (b. 1725)
- December 31 - Jean-François Marmontel, French historian and writer (b. 1723) Category:1799 ko:1799년 ms:1799 th:พ.ศ. 2342

Congress of the United States

The Congress of the United States is the legislative branch of the federal government of the United States. It is bicameral, comprising the House of Representatives and the Senate. The House of Representatives consists of 435 members, each of whom represents a congressional district and serves for a two-year term. House seats are apportioned among the states by population; in contrast, each state has two Senators, regardless of population. There are a total of 100 senators, who serve six-year terms. Both representatives and senators are directly elected by the people, but in some states the governor may appoint a temporary replacement when a Senate seat is vacant. The United States Constitution vests all legislative powers of the federal government in the Congress. The powers of Congress are limited to those enumerated in the Constitution; all other powers are reserved to the states and the people. The enumerated powers of Congress include the authority to regulate interstate and foreign commerce, to levy taxes, to establish federal courts inferior to the Supreme Court, to maintain the armed forces, and to declare war. The Constitution also includes the necessary-and-proper clause, which grants Congress the power to "make all laws which shall be necessary and proper for carrying into execution the foregoing powers." The general purposes expressed in the Preamble have also been interpreted as authorizing Acts of Congress. The Senate is fully equal to the House of Representatives, and is not a "chamber of review," as is the case with the upper houses of the bicameral legislatures of many other nations. However, there are some special powers granted to one chamber only. On the one hand, the Senate's advice and consent is required for presidential appointments to high-level executive and judicial positions, and for the ratification of treaties. On the other hand, bills for raising revenue may originate in the House of Representatives alone. Both chambers meet in the Capitol in Washington, D.C. Washington, D.C.]

History

The Congress of the United States derives from First Continental Congress, a meeting of representatives of twelve of Great Britain's seventeen North American colonies, in the autumn of 1774. On 4 July 1776, the Second Continental Congress declared thirteen former colonies independent states, referring to them as the "United States of America." Under the Articles of Confederation, Congress was a unicameral body in which each state was equally represented, and in which each state had a veto over most action. The ineffectiveness of the federal government under the Articles led Congress to summon the Convention of 1787. Originally intended to revise the Articles of Confederation, it ended up writing a completely new constitution. James Madison called for a bicameral Congress: the lower house elected directly by the people, and the upper house elected by the lower house. The smaller states, however, favored a unicameral Congress with equal representation for the states. Eventually, a compromise was reached; the House of Representatives to provide proportional representation, whereas the Senate would provide equal representation. In order to preserve further the authority of the states, it was provided that state legislatures, rather than the people, would elect senators. The post Civil War Gilded Age was marked by Republican dominance of Congress. Senate elections were tainted by corruption, bribery and gridlock preventing the election of a senator. These issues were addressed by the Seventeenth Amendment (ratified in 1913), which provided for the direct election of senators. The early twentieth century witnessed the rise of party leadership in both houses of Congress. In the House of Representatives, the office of Speaker became extremely powerful. Leaders in the Senate were somewhat less powerful; individual senators still retained much of their influence. In particular, committee chairmen remained particularly strong in both houses until the reforms of the 1970s. During the long administration of President Franklin D. Roosevelt (1933–45), the Democratic Party controlled both houses of Congress. Both the Republicans and the Democrats were in control at various points during the next decade. However, after winning the elections of 1954, the Democratic Party was the majority party in both houses of Congress for most of the next forty years. The Republicans finally returned to a majority position, in both houses of Congress, in the election of 1994. The Republicans have controlled both houses since, except that the Democrats held the Senate briefly from 2001 to 2003.

Composition

2003 The House of Representatives consists of 435 members representing the fifty states. Seats are apportioned among the states on the basis of population, but every state, regardless of size, is guaranteed at least one seat. Representatives are directly elected by single-member constituencies known as congressional districts. Each state may draw the boundaries of its districts, subject to certain legal requirements; for instance, districts must have approximately equal populations. Representatives serve for two-year terms. The Senate consists of 100 members, two representing each state regardless of population. A senator is elected not by a district, but by a state as a whole. Senators serve for terms of six years each; the terms are staggered so that approximately one-third of the Senate seats are up for election every two years and so that both seats from a given state are never contested in the same general election (except for the first election of Senators upon admission of a new state). The District of Columbia and the territories are not represented in the Senate in any manner. The Constitution makes no provision for representation in Congress for citizens of the District of Columbia or the territories. Attempts to change the situation, regarding lack of District of Columbia voting rights, including the proposed District of Columbia Voting Rights Amendment, have been unsuccessful. Currently, the District of Columbia and the territories of American Samoa, Guam, and the U.S. Virgin Islands are represented by a single delegate each, while Puerto Rico elects a Resident Commissioner. Delegates and Resident Commissioners may participate in debates and vote in committees, but may not vote on the floor of the full House. Delegates serve for two-year terms; the Resident Commissioner serves for a four-year term. Generally, the Republican and Democratic parties choose their candidates in primary elections. Ballot access rules for independent and third party candidates vary from state to state. General elections are held in every even-numbered year, on the first Tuesday after the first Monday in November (Election Day). Special elections are held whenever vacancies arise; in the case of the Senate, however, the Governor of a state normally holds the power to temporarily appoint a senator until a special election can be held. In almost all cases, general and special elections are conducted by the first-past-the-post electoral system. Louisiana, however, uses runoff voting for congressional elections.

Officers

The Constitution authorizes the House of Representatives to elect its own Speaker. The Speaker's powers as presiding officer are extensive; he or she controls the course of debate and enforces the rules of the House. Normally, the Speaker does not personally preside over debates; instead, the task is delegated to other members. The Speaker is also the head of the majority party, outranking the Majority Leader. The Vice President of the United States is ex officio the President of the Senate; he or she has no vote except in the case of a tie. The Senate also elects a President pro tempore, or "temporary President," to preside when the Vice President is absent. The President pro tempore, by custom, is the most senior senator of the majority party. Neither the Vice President nor the President pro tempore regularly presides; instead, the duty is performed by other senators. The powers of the President pro tempore are much less extensive than those of the Speaker. He or she does not head the majority party in the Senate; rather, the Majority Leader is the full head of the Senate majority party.

Women, ethnic and racial minorities

Congress has historically not reflected the full diversity of the United States, despite the fact that the Constitution has never excluded persons from membership in Congress on the basis of race, ethnicity, or sex. The early Congresses were composed largely of upper-class White men. This changed briefly during the post-Civil War era of Reconstruction. The passage of the 13th and 14th Amendments expanded suffrage to former slaves. This, combined with the temporary exclusion of former members of the government of the Confederate States of America, permitted a number of African Americans to win seats. This movement reversed when Reconstruction ended and Southern states began disenfranchising blacks through the use of Jim Crow laws. During the remainder of the 19th century, and into the 20th century, racial, economic, and ethnic prejudice in the rest of the country largely kept out non-Protestants and the new waves of immigrants from southern Europe. This slowly began to change in the 20th century as these groups gained more political clout. The Civil Rights Movement of the 1950s 60s again enfranchised African-Americans, who gained more seats as a consequence. Jeannette Rankin was the first woman elected to Congress, in 1916. Women could not vote or be elected in most of the United States until the Nineteenth Amendment was ratified in 1920. Rebecca Felton was the first woman to become a Senator in 1922, when she was appointed to fill a vacancy left by Georgia Senator Thomas E. Watson. As of 2005, there are 69 women serving the U.S. House and 14 in the U.S. Senate. This is the highest number of women to hold Congressional office at one time.

Restrictions on office holding

Article I, Section 6, Clause 2 of the U.S. Constitution prohibits members of Congress from also holding a federal civil office, thus differentiating the U.S. from parliamentary systems where cabinet members are drawn from and continue to sit in the legislature. The same section also prohibits members from being appointed to offices created, or granted increased salary, during their term. This is intended to prevent the creation of sinecure positions. The Constitution does not prohibit Representatives or Senators from simultaneously holding a state post. During the eighteenth century, some members of Congress did also serve as state legislators and other state officials. Such cross-federal dual office holding is now prohibited by state constitutions or statutes, or by general custom. It also does not explicitly prohibit a particular person from serving in both the House and Senate at the same time or, for that matter, from simultaneously holding two or more seats in the House of Representatives. However, no person has ever done so; a member holding a seat in one house has always resigned that seat before starting their term in the other house.

Powers

Section 8 of Article One of the United States Constitution sets forth the powers of Congress. The most important powers are the powers to levy and collect taxes, borrow money, regulate commerce with foreign nations and among the states, coin money, establish courts inferior to the Supreme Court, raise and maintain the armed forces, and declare war. There are additional powers other parts of the Constitution grant. For instance, Congress has the power to admit new states to the Union (Article Four). Other powers have been granted, or confirmed, by constitutional amendments. Congress has the power to break deadlocks in the electoral college. If no presidential candidate achieves an electoral majority, the House may elect the President from the three candidates with the highest numbers of electoral votes. Similarly, if no vice presidential candidate achieves an electoral majority, the Senate may elect the Vice President from the two candidates with the highest numbers of electoral votes. Several of the members of the Constitutional Convention expected that, while George Washington would be overwhelmingly elected as first President under the Constitution, selection by the House would be the normal method after him. The "necessary and proper clause" of the Constitution permits Congress to make "all Laws which shall be necessary and proper for carrying into Execution" its other powers and the rest of the Constitution. The Supreme Court has interpreted the necessary and proper clause broadly, which has permitted the Congress wide authority. One of the foremost non-legislative functions of the Congress is the power to investigate and to oversee the executive branch. This power is usually delegated to committees—standing committees, special committees, select committees, or joint committees composed of members of both houses. Investigations are conducted to gather information on the need for future legislation, to test the effectiveness of laws already passed, and to inquire into the qualifications and performance of members and officials of the other branches. Committees may hold hearings, and, if necessary, compel individuals to testify by issuing subpoenas. Witnesses who refuse to testify may be cited for contempt of Congress, and those who testify falsely may be charged with perjury. Most committee hearings are open to the public; important hearings are widely reported in the mass media. Article I, Section 9 of the U.S. Constitution places certain limits of congressional authority. For instance, Congress may not suspend the privilege of the writ of habeas corpus (except in extreme cases of rebellion or invasion), pass bills of attainder or ex post facto laws, or grant titles of nobility. Several other restrictions are specified by constitutional amendments, especially the Bill of Rights. The last clause of the Bill of Rights, the Tenth Amendment, provides that "The powers not delegated to the United States by the Constitution, nor prohibited by it to the States, are reserved to the States respectively, or to the people."

Checks and balances

The constitution provides certain checks and balances among the three branches of the federal government. The influence of Congress on the presidency has varied from one period to another; it depends largely on the leadership and the political influence of the President. The authors of the Constitution expected the greater power to lie with Congress and that is one reason they are described in Article One. Under the first half-dozen Presidents, power seems to have been evenly divided between the President and Congress, in part because early Presidents largely restricted their vetoes to claims of unconstitutionality. Andrew Jackson (1829-37) dominated his Congresses; his successors were weaker men (excluding Abraham Lincoln (1861-65), and perhaps James K. Polk (1845-49) and Martin van Buren (1837-41)). Senators ruled, including Henry Clay, Daniel Webster, John C. Calhoun, Thomas Hart Benton, Stephen Douglas, and Thaddeus Stevens. The impeachment of Andrew Johnson completed this trend, making the presidency much less powerful than Congress. During the late nineteenth century, President Grover Cleveland aggressively attempted to restore the executive branch's power, vetoing over four hundred bills during his first term. The 20th and 21st centuries have seen the rise of the power of the Presidency under Theodore Roosevelt (1901-09), Franklin D. Roosevelt (1933-45), Richard Nixon (1969-74), Ronald Reagan (1981-89), and George W. Bush (2001–) (see Imperial Presidency). In recent years, Congress has restricted the powers of the President with laws such as the Congressional Budget and Impoundment Control Act of 1974 and the War Powers Resolution; nevertheless, the Presidency remains considerably more powerful than during the nineteenth century. The Constitution empowers the House of Representatives to impeach federal officials (both executive and judicial) for "Treason, Bribery, or other high Crimes and Misdemeanors." The Senate is constitutionally empowered to try all impeachments. A simple majority in the House is required to impeach an official; however, a two-thirds majority in the Senate is required for conviction. A convicted official is automatically removed from office; in addition, the Senate may stipulate that the defendant be banned from holding office in the future. Impeachment proceedings may not inflict more than this; however, the party may face criminal penalties in a normal court of law. In the history of the United States, the House of Representatives has impeached sixteen officials, of whom seven were convicted. (Another resigned before the Senate could complete the trial). Only two Presidents of the United States have ever been impeached: Andrew Johnson in 1868 and Bill Clinton in 1999. Both trials ended in acquittal; in Johnson's case, the Senate fell one vote short of the two-thirds majority required for conviction. The Constitution entrusts certain powers to the Senate alone. The President may only appoint Cabinet officials, judges, and other high officers with the "advice and consent" of the Senate. The Senate confirms most presidential nominees, but rejections are not uncommon. Furthermore, treaties negotiated by the President must be ratified by a two-thirds majority vote in the Senate to take effect. The House of Representatives has no formal role in either the appointment of federal officials or the ratification of treaties. The Constitution does not explicitly state that the courts may exercise judicial review (the power to strike down laws on the grounds of unconstitutionality). However, the notion that courts could declare laws unconstitutional was accepted by several delegates; for example, Alexander Hamilton mentioned and expounded the doctrine in Federalist No. 78. In 1803, the Supreme Court, established judicial review of Federal legislation in Marbury v. Madison; Marbury made the particular holding, however, that Congress could not grant unconstitutional power to the Court itself—the general power of judicial review was not exercised until the Dred Scott decision of 1857.

Legislative procedure

1857

Term

Under the Twentieth Amendment, congressional terms begin at noon on January 3 of every odd-numbered year. It is conventional to refer to each Congress by the ordinal number of its term. Thus, the current Congress (whose term lasts from 2005 to 2007) is known as the "109th Congress"; the previous Congress (whose term lasted from 2003 to 2005) was the "108th Congress," and so forth. At the beginning of each new term, the entire House of Representatives and one-third of the Senate (those who were chosen in the election the previous November) are sworn in. The oath taken is provided by statute: "I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter: So help me God." The House of Representatives also elects a Speaker to preside over debates. The President pro tempore of the Senate, by contrast, holds office continuously; normally, a new President pro tempore is only elected if the previous one retires, or if there is a change in the majority party. A term of Congress is divided into two "sessions," one for each year; Congress has occasionally also been called into an extra, (or special) session. (The Constitution requires Congress to meet at least once each year.) A new session commences on January 3 (or another date, if Congress so chooses) each year. Before the Twentieth Amendment, Congress met from the first Monday in December to April or May in the first session of their term (the "long session"); and from December to March 4 in the second "short session". (The new Congress would then meet for some days, for the inauguration, swearing in new members, and organization.) The Constitution forbids either house from meeting any place outside the Capitol, or from adjourning for more than three days, without the consent of the other house. The provision was intended to prevent one house from thwarting legislative business simply by refusing to meet. To avoid obtaining consent during long recesses, the House or Senate may sometimes hold pro forma meetings, sometimes only minutes long, every three days. The consent of both bodies is required for Congress's final adjournment, or adjournment sine die, at the end of each congressional session. If the two houses cannot agree on a date, the Constitution permits the President to settle the dispute.

Joint sessions

Joint Sessions of the United States Congress occur on special occasions that require a concurrent resolution from both House and Senate. These sessions include the counting of electoral votes following a Presidential election and the President's State of the Union address. Other meetings of both House and Senate are called Joint Meetings of Congress, held after unanimous consent agreements to recess and meet. Meetings of Congress for Presidential Inaugurations may also be Joint Sessions, if both House and Senate are in session at the time, otherwise they are formal joint gatherings. At some time during the first two months of each session, the President customarily delivers the State of the Union Address, a speech in which he or she assesses the situation of the country and outlines his or her legislative proposals for the congressional session. The speech is modeled on the Speech from the Throne given by the British monarch, and is mandated by the Constitution of the United States. Thomas Jefferson discontinued the original practice of delivering the speech in person before both houses of Congress, deeming it too monarchical. Instead, Jefferson and his successors sent a written message to Congress each year. In 1913, President Woodrow Wilson reestablished the practice of personally attending to deliver the speech; few Presidents have deviated from this custom since. Joint Sessions and Joint Meetings are traditionally presided over by the Speaker of the House. However, the Constitution requires the President of the Senate to preside over the counting of electoral votes.

Bills and resolutions

A proposal may be introduced in Congress as a bill, a joint resolution, a concurrent resolution, or a simple resolution. Most legislative proposals are introduced as bills, but some are introduced as joint resolutions. There is little practical difference between the two, except that joint resolutions may include preambles but bills may not. Joint resolutions are the normal method used to propose a constitutional amendment or to declare war. On the other hand, concurrent resolutions (passed by both houses) and simple resolutions (passed by only one house) do not have the force of law. Instead, they serve to express the opinion of Congress, or to regulate procedure. Members of Congress often introduce legislation at the behest of lobbyists. Lobbyists advocate the passage (or rejection) of bills affecting the interest of a particular group (such as a corporation or a labor union). In many cases, the lobbyists write legislation and submit it to a member for introduction. Congressional lobbyists are legally required to be registered in a central database, and are employed by political organizations, corporations, state governments, foreign governments, and numerous other groups. In 2005, there are almost 35,000 registered Congressional lobbyists, representing a doubling since 2000. Some of the most prominent lobbyists are ex-members of Congress, others are family members of sitting members. As an example, Dennis Hastert, Tom DeLay, and Roy Blunt all have immediate family members who are (or were) lobbyists. Bills (and other proposals) may be introduced by any member of either house. However, the Constitution provides that: "All bills for raising Revenue shall originate in the House of Representatives." As a result, the Senate does not have the power to initiate bills imposing taxes. Furthermore, the House of Representatives holds that the Senate does not have the power to originate appropriation bills, or bills authorizing the expenditure of federal funds. Historically, the Senate has disputed the interpretation advocated by the House. However, whenever the Senate originates an appropriations bill, the House simply refuses to consider it, thereby settling the dispute in practice. Although it cannot originate revenue and appropriation bills, the Senate retains the power to amend or reject them. Each bill goes through several stages in each house; the first stage involves consideration by a committee. Most legislation is considered by standing committees, each of which has jurisdiction over a particular subject matter, such as Agriculture or Appropriations. The House has twenty standing committees; the Senate has sixteen. In some cases, bills may be sent to select committees (which tend to have more narrow jurisdictions than standing committees. Each standing and select committee is led by a chairman (who belongs to the majority party) and a ranking member (who belongs to the minority party). Committees are permitted to hold hearings and collect evidence when considering bills. They may also amend the bill, but the full house holds the power to accept or reject committee amendments. After considering and debating a measure, the committee votes on whether it wishes to report the measure to the full house. A decision not to report a bill amounts to a rejection of the proposal. Both houses provide for procedures under which the committee can be bypassed or overruled, but they are rarely used. If reported by the committee, the bill reaches the floor of the full house. The house may debate and amend the bill; the precise procedures used by the House of Representatives and the Senate differ. A final vote on the bill follows. Central party discipline is not as strong in Congress as it is in parliamentary systems, and in the Senate it is weaker than in the House. However, the leadership does have certain powers to sway reluctant legistators to vote with the party. Party leaders derive most of their powers from the ability to fundraise, to control the flow of legislation, and to assign desireable positions; a rebel Congressman may be threatened with a cutoff of funds for his/her campaign, a reduction of pork for his/her district, thwarting of his/her pet legislation, and/or denial of a future committee chairmanship. The party leadership may use the "catch and release" strategy in order to ensure the passage of important legislation with the support of reluctant members. The leaders "catch" a member, pressuring him or her to vote in favor of the legislation even if it is unpopular in the member's constituency. Then, if the bill has sufficient support to pass anyway, the member may be "released," that is, permitted to vote as he or she pleases. Hence, members may avoid alienating influential special interest groups, while remaining loyal to the party. Once a bill is approved by one house, it is sent to the other, which may pass, reject, or amend it. In order for the bill to become law, both houses must agree to identical versions of the bill. If the second house amends the bill, then the differences between the two versions must be reconciled in a conference committee, an ad hoc committee that includes both senators and representatives. In many cases, conference committees have introduced substantial changes to bills and added unrequested spending, significantly departing from both the House and Senate versions. President Ronald Reagan once quipped, "If an orange and an apple went into conference consultations, it might come out a pear." If both houses agree to the version reported by the conference committee, the bill passes; otherwise, it fails. After passage by both houses, a bill is submitted to the President. The President may choose to sign the bill, thereby making it law. The President may also choose to veto the bill, returning it to Congress with his or her objections. In such a case, the bill only becomes law if each house of Congress votes to override the veto with a two-thirds majority. Finally, the President may choose to take no action, neither signing nor vetoing the bill. In such a case, the Constitution states that the bill automatically becomes law after ten days (excluding Sundays). However, if Congress adjourns (ends a legislative session) during the ten day period, then the bill does not become law. Thus, the President may veto legislation passed at the end of a congressional session simply by ignoring it; the maneuver is known as a pocket veto, and cannot be overridden by the adjourned Congress. Every Act of Congress or joint resolution begins with an enacting formula or resolving formula stipulated by law. These are:
- Act of Congress: "Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled."
- Joint resolution: "Resolved by the Senate and House of Representatives of the United States of America in Congress assembled."

Quorum and voting

The Constitution specifies that a majority of members constitutes a quorum to do business in each house. The rules of each house provide that a quorum is assumed to be present unless a quorum call demonstrates the contrary. Representatives and senators rarely force the presence of a quorum by demanding quorum calls; thus, in most cases, debates continue even if a majority is not present. Both houses use voice voting to decide most matters; members shout out "aye" or "no," and the presiding officer announces the result. The Constitution, however, requires a recorded vote on the demand of one-fifth of the members present. If the result of the voice vote is unclear, or if the matter is controversial, a recorded vote usually ensues. The Senate uses roll call votes; a clerk calls out the names of all the senators, each senator stating "aye" or "no" when his or her name is announced. The House reserves roll call votes for the most formal matters; normally, members vote by electronic device. In the case of a tie, the motion in question fails. In the Senate, the Vice President may (if present) cast the tiebreaking vote.

Privileges

Under the Constitution, members of both houses enjoy the privilege of being free from arrest in all cases, except for treason, felony, and breach of the peace. This immunity applies to members "during their Attendance at the Session of their respective Houses, and in going to and returning from the same." The term "arrest" has been interpreted broadly, and includes any detention or delay in the course of