Amazon River    [sp2025050226]

BT Brazilian rivers

BT Colombian rivers

BT Peruvian rivers

Amazon River

Amazon River Region    [sp2025050227]

UF Amazon basin

UF Amazonia

Amazon River Region

Brain    [Not Subd Geog]    [sp2021051620]

UF Cerebrum DELETE FIELD

UF Mind DELETE FIELD

UF Encephalon ADD FIELD

BT Head DELETE FIELD

BT Skull ADD FIELD

Machine-derived authority record. DELETE FIELD

Brain--Diseases CHANGE HEADING

Brain diseases    [May Subd Geog]    [sp2021061739]

RC386-RC395 (Internal medicine)

UF Brain--Diseases [Former heading]

BT Central nervous system diseases

Heading changed from Brain--Diseases to Brain diseases in June 2025.

Brain--Wounds and injuries CHANGE HEADING

Brain injuries    [May Subd Geog]    [sp2022050192]

RD594 (Surgery)

UF Brain--Wounds and injuries [Former heading]

UF Brain injury

BT Brain

BT Wounds and injuries

Established August 2022. Heading changed from Brain--Wounds and injuries to Brain injuries in June 2025.

150

Aphasia    [May Subd Geog]    [sp2021061738]

550

BT Brain--Diseases DELETE FIELD

550

BT Brain diseases ADD FIELD

150

Brain damage    [May Subd Geog]    [sp2021054591]

053

RC387.5 (Diseases of the brain) DELETE FIELD

053

RC387.5 (Internal medicine) ADD FIELD

550

BT Brain--Diseases DELETE FIELD

550

BT Brain--Wounds and injuries DELETE FIELD

550

BT Brain diseases ADD FIELD

550

BT Brain injuries ADD FIELD

150

Cerebrovascular disease CHANGE HEADING

150

Cerebrovascular diseases    [May Subd Geog] CHANGE GEOG    [sp2021061095]

053

RC388.5 (Internal medicine)

450

UF Brain vascular diseases

450

UF Brain vascular disorders

450

UF Cerebrovascular--Diseases

450

UF Cerebrovascular disorders

450

UF Cerebrovascular insufficiencies

450

UF Cerebrovascular insufficiency

450

UF Cerebrovascular occlusions

450

UF Intracranial vascular diseases

450

UF Intracranial vascular disorders

550

BT Brain diseases

150

Dementia    [May Subd Geog] CHANGE GEOG    [sp2021060576]

053

RC521-RC524 DELETE FIELD

053

RC521-RC524 (Internal medicine) ADD FIELD

450

UF Aphrenia DELETE FIELD

450

UF Aphronesia DELETE FIELD

450

UF Athymia DELETE FIELD

450

UF Amentia ADD FIELD

450

UF Amentias ADD FIELD

450

UF Familial dementia ADD FIELD

450

UF Familial dementias ADD FIELD

450

UF Senile paranoid dementia ADD FIELD

450

UF Senile paranoid dementias ADD FIELD

550

BT Brain--Diseases DELETE FIELD

550

BT Neurobehavioral disorders DELETE FIELD

550

BT Psychoses DELETE FIELD

550

BT Brain diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

150

Epilepsy    [May Subd Geog] CHANGE GEOG    [sp2021050242]

053

RA645.E64 (Public health) DELETE FIELD

053

RC372-RC374.5 (Neurology) DELETE FIELD

053

RA645.E64 (Public aspects of medicine) ADD FIELD

053

RC372-RC374.5 (Internal medicine) ADD FIELD

450

UF Cerebral seizure ADD FIELD

450

UF Convulsive disorder ADD FIELD

450

UF Epilepsies ADD FIELD

450

UF Seizure disorder ADD FIELD

550

BT Brain--Diseases DELETE FIELD

550

BT Developmental disabilities DELETE FIELD

550

RT Convulsions DELETE FIELD

550

RT Spasms DELETE FIELD

550

BT Brain diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

150

Hydrocephalus    [May Subd Geog] CHANGE GEOG    [sp2021061126]

053

RC391 DELETE FIELD

053

RC391 (Internal medicine) ADD FIELD

550

BT Brain--Diseases DELETE FIELD

550

BT Brain diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

150

Parkinson's disease    [May Subd Geog] CHANGE GEOG    [sp2021056200]

053

RC382 DELETE FIELD

053

RC382 (Internal medicine) ADD FIELD

450

UF Palsy, Shaking DELETE FIELD

450

UF Paralysis agitans [Former heading] DELETE FIELD

450

UF Parkinsonism [Former heading] DELETE FIELD

450

UF Shaking palsy DELETE FIELD

450

UF Idiopathic parkinsonism ADD FIELD

450

UF Paralysis agitans ADD FIELD

450

UF PD (Parkinson's disease) ADD FIELD

450

UF Primary parkinsonism ADD FIELD

550

BT Brain--Diseases DELETE FIELD

550

BT Extrapyramidal disorders DELETE FIELD

550

BT Brain diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

Brazilian rivers    [sp2025050223]

UF Rivers--Brazil

Central nervous system--Diseases CHANGE HEADING

Central nervous system diseases    [May Subd Geog] CHANGE GEOG    [sp2022050088]

RC360-RC406 (Internal medicine)

UF Central nervous system--Diseases [Former heading]

BT Diseases

Established April 2022. Heading change from Central nervous system--Diseases to Central nervous system diseases. Heading changed from Central nervous system--Diseases to Central nervous system diseases in June 2025.

150

Creutzfeldt-Jakob disease    [May Subd Geog] CHANGE GEOG    [sp2021059561]

053

RC394.C83 DELETE FIELD

053

RC394.C83 (Internal medicine) ADD FIELD

450

UF Heidenhain syndrome DELETE FIELD

450

UF Jakob-Creutzfeldt disease [Former heading] DELETE FIELD

450

UF Jakob's disease DELETE FIELD

450

UF Spastic pseudosclerosis DELETE FIELD

450

UF Sub-acute spongiform encephalopathy DELETE FIELD

450

UF Subacute spongiform encephalopathy DELETE FIELD

450

UF Creutzfeld-Jakob disease ADD FIELD

450

UF Creutzfeld-Jakob syndrome ADD FIELD

450

UF Jakob-Creutzfeld disease ADD FIELD

450

UF Jakob-Creutzfeld syndrome ADD FIELD

450

UF Jakob-Creutzfeldt disease ADD FIELD

550

BT Central nervous system--Diseases DELETE FIELD

550

BT Presenile dementia DELETE FIELD

550

RT Bovine spongiform encephalopathy DELETE FIELD

550

BT Central nervous system diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

150

Meningitis    [May Subd Geog] CHANGE GEOG    [sp2021056184]

053

RC124 DELETE FIELD

053

RC376 DELETE FIELD

053

SF799 (Veterinary medicine) DELETE FIELD

053

RC376 (Internal medicine) ADD FIELD

053

SF799 (Animal culture) ADD FIELD

450

UF Leptomeningitis DELETE FIELD

450

UF Meninges--Inflammation ADD FIELD

450

UF Meningitides ADD FIELD

450

UF Spinal meningitis ADD FIELD

550

BT Central nervous system--Diseases DELETE FIELD

550

RT Neisseria meningitidis DELETE FIELD

550

BT Central nervous system diseases ADD FIELD

667

Machine-derived authority record. DELETE FIELD

150

Polio    [May Subd Geog]    [sp2021055081]

450

UF Paralysis, Anterior spinal DELETE FIELD

450

UF Paralysis, Infantile DELETE FIELD

550

BT Paralysis ADD FIELD

680

When this heading is assigned to nonfiction works, the second subject heading Diseases is also assigned, e.g., 1. Polio. 2. Diseases. DELETE FIELD

150

Heart--Diseases CHANGE HEADING

150

Heart diseases    [May Subd Geog]    [sp2022050226]

053

RC681-RC688.2 (Internal medicine)

450

UF Cardiac diseases

450

UF Heart--Diseases [Former heading]

550

BT Circulatory system diseases

688

Established October 2022. Heading changed from Heart--Diseases to Heart diseases in May 2025.

Colombian rivers    [sp2025050224]

UF Rivers--Colombia

Death--Causes CHANGE HEADING

Causes of death    [May Subd Geog]    [sp2022050018]

RA1063-RA1063.47 (Public aspects of medicine)

UF Cause of death

UF Death--Causes [Former heading]

UF Death cause

UF Death causes

RT Autopsy

Heading changed from Death--Causes to Causes of death in May 2025.

150

Drowning    [May Subd Geog] CHANGE GEOG    [sp2021054448]

053

RA1076 (Legal medicine) DELETE FIELD

053

RA1076 (Public aspects of medicine) ADD FIELD

550

BT Accidents DELETE FIELD

550

BT Death--Causes DELETE FIELD

550

BT Violent deaths DELETE FIELD

667

Machine-derived authority record. DELETE FIELD

150

Suicide    [May Subd Geog] CHANGE GEOG    [sp2021051690]

053

RA1136 (Medical jurisprudence) DELETE FIELD

053

RC569 (Psychiatry) DELETE FIELD

053

RA1136 (Public aspects of medicine) ADD FIELD

053

RC569 (Internal medicine) ADD FIELD

360

SA subdivision Suicidal behavior under classes of persons and ethnic groups DELETE FIELD

550

BT Death--Causes DELETE FIELD

550

RT Right to die DELETE FIELD

550

BT Causes of death ADD FIELD

667

Machine-derived authority record. DELETE FIELD

Diseases--Causes and theories of causation CHANGE HEADING

Causes and origins of diseases    [May Subd Geog] CHANGE GEOG    [sp2022050273]

RB151-RB214 (Pathology)

UF Aetiology

UF Diseases--Causes and theories of causation [Former heading]

UF Etiologies

UF Etiology

BT Pathology

Assign an additional heading for the individual disease or types of diseases, if appropriate.

Established November 2022. Heading changed from Diseases--Causes and theories of causation to Causes and origins of diseases in May 2025.

Hawaiian mountains    [sp2025050221]

UF Mountains--Hawaii

Hawaiian volcanoes    [sp2025050220]

UF Volcanoes--Hawaii

Mauna Loa (Hawaii Island, Hawaii)    [sp2025050222]

DU629.M34 (History of Oceania)

BT Hawaiian mountains

BT Hawaiian volcanoes

Mauna Loa (Hawaii Island, Hawaii)

Pacific Northwest    [sp2025050228]

UF Northwest (United States)

UF Northwestern United States

Pacific Northwest

Peninsulas    [May Subd Geog]    [sp2025050233]

GB454.P46 (Physical geography)

BT Coasts

150

Peninsulas--Michigan    [sp2025050234]

680

Not valid for use on works of fiction.

151

Upper Peninsula (Mich.)    [sp2025050235]

451

UF Northern Peninsula (Mich.)

550

BT Peninsulas--Michigan

781

Michigan--Upper Peninsula

Peruvian rivers    [sp2025050225]

UF Rivers--Peru

Preventive medicine    [May Subd Geog]    [sp2021059688]

SA subdivision Prevention on nonfiction works under individual diseases and types of diseases, e.g. Cold (Disease)--Prevention; and subdivision Diseases--Prevention on nonfiction works under organs and regions of the body, e.g. Heart--Diseases--Prevention DELETE FIELD

Heading changed from Medicine, Preventive to Preventive medicine in October 2022. ADD FIELD

Assign an additional heading for the type disease, organ, or region of the body targeted by preventive medicine, if applicable. ADD FIELD

150

Cold (Disease)--Prevention CANCEL HEADING    [sp2022050089]

682

This authority record has been deleted because the heading is covered by the subject headings Cold (Disease) (DLC)sj2021052134 and Preventive medicine (DLC)sj2021059688

150

Heart--Diseases--Prevention CANCEL HEADING    [sp2022050227]

682

This authority record has been deleted because the heading is covered by the subject headings Heart diseases (DLC)sj2022050226 and Preventive medicine (DLC)sj2021059688

Proving grounds    [May Subd Geog]    [sp2025050236]

UF Military weapons testing sites

UF Proving grounds (Ordnance)

150

Proving grounds--Nevada    [sp2025050237]

680

Not valid for use on works of fiction.

151

Area 51 (Nev.)    [sp2025050231]

451

UF Dreamland (Nev.)

451

UF Nevada Test and Training Range at Groom Lake (Nev.)

451

UF Paradise Ranch (Nev.)

451

UF Watertown (Nev. : Area 51)

781

Nevada--Area 51

Self-actualization    [Not Subd Geog] ADD GEOG    [sp2021050591]

BF637.S4 (Applied psychology) DELETE FIELD

BF637.S4 (Psychology) ADD FIELD

UF Growth, Personal DELETE FIELD

UF Self-realization (Psychology) DELETE FIELD

Here are entered works that depict feelings of self-improvement and personal growth. Works on feelings of self-fulfillment and personal satisfaction are entered under Self-realization. ADD FIELD

Note under Self-help techniques DELETE FIELD

Notes under Self-help techniques and Self-realization ADD FIELD

Self-realization    [Not Subd Geog]    [sp2021050158]

BF1099.S36 (Parapsychology) ADD FIELD

BJ1470 (Ethics) ADD FIELD

UF Fulfillment (Ethics) DELETE FIELD

UF Fulfillment ADD FIELD

RT Satisfaction DELETE FIELD

Machine-derived authority record. DELETE FIELD

Here are entered works that depict feelings of self-fulfillment and personal satisfaction. Works on feelings of self-improvement and personal growth are entered under Self-actualization. ADD FIELD

Note under Self-actualization ADD FIELD

Swiss Alps (Switzerland)    [sp2025050230]

BT Swiss mountains

This heading is not valid for use as a geographic subdivision.

Swiss mountains    [sp2025050229]

UF Mountains--Switzerland

Testing    [May Subd Geog]    [sp2025050200]

United States--History--1783-1815    [sp2025050150]

United States--History--1783-1865    [sp2025050151]

United States--History--1797-1801    [sp2025050152]

United States--History--1801-1809    [sp2025050153]

United States--History--1809-1817    [sp2025050154]

United States--History--1815-1861    [sp2025050155]

United States--History--1817-1825    [sp2025050156]

United States--History--1825-1829    [sp2025050157]

United States--History--1849-1877    [sp2025050158]

United States--History--1865-    [sp2025050159]