occupation wilhelmus zakaria johannes
Radiography is an imaging technique that uses electromagnetic radiation other than visible light , specifically X - rays , to view the internal structure of a non - uniformly composed and opaque object ( i . e . a non - transparent object of varying density and composition ) such as the human body . To create the image , a heterogeneous beam of X - rays is produced by an X - ray generator and is projected toward the object . A certain amount of X - ray is absorbed by the object , which is dependent on the particular density and composition of that object . The X - rays that pass through the object are captured behind the object by a detector ( either photographic film or a digital detector ). The detector can then provide a superimposed 2D representation of all the object ' s internal structures . Contrast radiography uses a radiocontrast ___MASK85___ , a type of contrast medium , to make the structures of interest stand out visually from their background , whereas plain radiography does not . Each type is best suited to certain indications . In tomography , the X - ray source and detector move to blur out structures not in the focal plane . Conventional tomography is rarely used now having been replaced by CT . Computed tomography ( CT scanning ), unlike flat film tomography , generates 3D representations used for ___MASK44___ - assisted reconstruction . ( Sometimes people say " plain radiography " when they mean nontomographic radiography .) Wilhelmus Zakaria Johannes ( 1895 -- September 4 , 1952 ) was an Indonesian radiology doctor . Johannes was the first Indonesian medical doctor who learned radiology in the CBZ ( Civil Hospital ) in Batavia and then became an expert in Rontgen technology and had contributed a lot to the development of medical studies in Indonesia . The Indonesian government honored WZ Johannes as a National Hero of Indonesia and named a ___MASK53___ hospital in Kupang , East Nusa Tenggara after him . As a tribute , the name Wilhelmus Zakaria Johannes was used on an Indonesian Navy ship , the KRI Wilhelmus Zakarias Yohannes . Johannes died in 1952 and was buried at the Jati Petamburan Cemetery in Central Jakarta . WZ Johannes was the cousin of Professor Herman Johannes , an Indonesian professor who was the Rector of Gadjah Mada University and father of Helmi Johannes , a newscaster and executive producer for VOA Indonesian television in Washington DC . A port is a location on a coast or shore containing one or more harbors where ships can dock and transfer people or cargo to or from land . Port locations are selected to optimize access to land and navigable water , for ___MASK1___ demand , and for shelter from wind and waves . Ports with deeper water are rarer , but can handle larger ships . Since ports throughout history handled every kind of traffic , support and storage facilities vary widely , may extend for miles , and dominate the local economy . Some ports have an important ___MASK8___ role . Nuclear medicine is a medical specialty involving the application of radioactive substances in the diagnosis and treatment of disease . Nuclear medicine , in a sense , is " radiology done inside out " or " endoradiology " because it records radiation emitting from within the body rather than radiation that is generated by external sources like X - rays . In addition , nuclear medicine scans differ from radiology as the emphasis is not on imaging anatomy but the function and for such reason , it is called a physiological imaging modality . Single Photon Emission Computed Tomography or SPECT and Positron Emission Tomography or ___MASK83___ scans are the two most common imaging modalities in nuclear medicine . East Nusa Tenggara ( NTT ) is a province of Indonesia . It is located in the eastern part of the Lesser Sunda Islands and includes West Timor . It has a total area of 48 , 718 . 1 km , and the population at the 2010 Census was 4 , 683 , 827 ; the latest ___MASK42___ estimate in January 2014 was 5 , 070 , 746 . The provincial capital is Kupang on West Timor . The ___MASK8___ , also called the armed forces , are forces authorized to use deadly force , and weapons , to support the interests of the state and some or all of its citizens . The task of the ___MASK8___ is usually defined as defense of the state and its citizens , and the prosecution of war against another state . The ___MASK8___ may also have additional sanctioned and non - sanctioned functions within a society , including , the promotion of a political agenda , protecting corporate economic interests , internal population control , construction , emergency services , social ceremonies , and guarding important areas . The ___MASK8___ can also function as a discrete subculture within a larger civil society , through the development of separate infrastructures , which may include housing , schools , utilities , food production and banking . An island country is a country whose primary territory consists of one or more islands or parts of islands . As of 2011 , 46 ( approximately 24 %) of the 193 UN ___MASK92___ states are island countries . Fishing is the activity of trying to catch fish . Fish are normally caught in the wild . Techniques for catching fish include hand gathering , spearing , netting , ___MASK51___ and trapping . Fishing may include catching aquatic animals other than fish , such as molluscs , cephalopods , crustaceans , and echinoderms . The term is not normally applied to catching farmed fish , or to aquatic mammals , such as whales where the term whaling is more appropriate . Timor is an island at the southern end of Maritime Southeast Asia , north of the Timor Sea . The island is divided between the ___MASK36___ states of East Timor , on the eastern part , and Indonesia , on the western part . The Indonesian part , also known as West Timor , constitutes part of the province of East Nusa Tenggara . Within West Timor lies an exclave of East Timor called Oecusse District . The island covers an area of . The name is a variant of " timur ", Malay for " east "; it is so called because it lies at the eastern end of the Lesser Sunda Islands . Radiology is a specialty that uses medical imaging to diagnose and treat diseases seen within the body . A variety of imaging techniques such as X - ray radiography , ultrasound , computed tomography ( CT ), nuclear medicine including positron emission tomography ( ___MASK83___ ), and magnetic resonance imaging ( MRI ) are used to diagnose and / or treat diseases . Interventional radiology is the performance of ( usually minimally invasive ) medical procedures with the guidance of imaging technologies . A Muslim is someone who follows or practises ___MASK45___ , a monotheistic Abrahamic ___MASK6___ . Muslims consider the Quran ( Koran ), their holy book , to be the verbatim word of God as revealed to the Islamic prophet and messenger Muhammad . They also follow the teachings and practices of Muhammad (" sunnah ") as recorded in traditional accounts (" hadith "). " Muslim " is an Arabic word meaning " one who submits ( to God )". Health care or healthcare is the maintenance or improvement of health via the diagnosis , treatment , and prevention of disease , illness , injury , and other physical and mental impairments in human beings . Health care is delivered by health professionals ( providers or practitioners ) in allied health professions , chiropractic , physicians , ___MASK25___ associates , dentistry , midwifery , nursing , medicine , optometry , pharmacy , psychology , and other health professions . It includes the work done in providing primary care , secondary care , and tertiary care , as well as in public health . Positron emission tomography ( ___MASK83___ ) is a nuclear medicine , functional imaging technique that is used to observe metabolic processes in the body . The system detects pairs of gamma rays emitted indirectly by a positron - emitting radionuclide ( tracer ), which is introduced into the body on a biologically active molecule . Three - dimensional images of tracer concentration within the body are then constructed by ___MASK44___ analysis . In modern ___MASK83___ - CT scanners , three dimensional imaging is often accomplished with the aid of a CT X - ray scan performed on the patient during the same session , in the same machine . Naval ___MASK63___ is the application of military air power by navies , whether from warships that embark aircraft , or land bases . Indonesia ( or ; Indonesian : ), officially the Republic of Indonesia , is a unitary ___MASK36___ state and transcontinental country located mainly in Southeast Asia with some territories in Oceania . Situated between the Indian and Pacific oceans , it is the world ' s largest island country , with more than seventeen thousand islands . At , Indonesia is the world ' s 14th - largest country in terms of land area and world ' s 7th - largest country in terms of combined sea and land area . It has an estimated population of over 260 million people and is the world ' s fourth most populous country , the most populous Austronesian nation , as well as the most populous Muslim - majority country . The world ' s most populous island of Java contains more than half of the country ' s population . Medical imaging is the technique and process of creating visual representations of the interior of a body for clinical analysis and medical intervention , as well as visual representation of the function of some organs or tissues ( ___MASK41___ ). Medical imaging seeks to reveal internal structures hidden by the skin and bones , as well as to diagnose and treat disease . Medical imaging also establishes a database of normal anatomy and ___MASK41___ to make it possible to identify abnormalities . Although imaging of removed organs and tissues can be performed for medical reasons , such procedures are usually considered part of pathology instead of medical imaging . A river is a natural flowing watercourse , usually freshwater , flowing towards an ocean , sea , lake or another river . In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water . Small rivers can be referred to using names such as stream , creek , brook , rivulet , and rill . There are no ___MASK42___ definitions for the generic term river as applied to geographic features , although in some countries or communities a stream is defined by its size . Many names for small rivers are specific to geographic location ; examples are " run " in some parts of the United States , " burn " in Scotland and northeast England , and " beck " in northern England . Sometimes a river is defined as being larger than a creek , but not always : the language is vague . A ___MASK36___ state is , in international law , a nonphysical juridical entity that is represented by one centralised government that has sovereignty over a geographic area . International law defines ___MASK36___ states as having a permanent population , defined territory , one government , and the capacity to enter into relations with other ___MASK36___ states . It is also normally understood that a ___MASK36___ state is neither dependent on nor subjected to any other power or state . Tin is a chemical element with the symbol Sn ( for ) and atomic number 50 , is a post - transition metal in group 14 of the periodic table . It is obtained chiefly from the mineral cassiterite , which contains tin dioxide , SnO . Tin shows a chemical similarity to both of its neighbors in group 14 , germanium and lead , and has two main oxidation states , + 2 and the slightly more stable + 4 . Tin is the 49th most abundant element and has , with 10 stable isotopes , the largest number of stable isotopes in the periodic table , thanks to its ___MASK90___ number of protons . It has two main allotropes : at room temperature , the stable allotrope is  - tin , a silvery - white , malleable metal , but at low temperatures it transforms into the less dense grey  - tin , which has the diamond cubic structure . Metallic tin is not easily oxidized in air . A blue - water navy is a maritime force capable of operating globally ; essentially across the deep waters of open oceans . A term more often used in the ___MASK54___ to describe such a force is a navy possessing maritime expeditionary capabilities . While definitions of what actually constitutes such a force vary , there is a requirement for the ability to exercise sea control at wide ranges . The term brown - water navy refers in its broadest sense to any naval force capable of ___MASK8___ operations in fluvial or littoral environments , especially those carrying heavy sediment loads from soil runoff or flooding . It originated in the United States Navy during the American Civil War , when it referred to Union forces patrolling the muddy Mississippi River , and has since been used to describe the small gunboats and patrol boats commonly used in rivers , along with the larger " mother ships " that supported them . These mother ships include converted World War II - era LCMs and LSTs , among other vessels . Nursing is a ___MASK49___ within the health care sector focused on the care of individuals , families , and communities so they may attain , maintain , or recover optimal health and quality of life . Nurses may be differentiated from other health care providers by their approach to patient care , training , and scope of practice . Nurses practice in many specialisms with differing levels of prescriber authority . Many nurses provide care within the ordering scope of physicians , and this traditional role has shaped the public image of nurses as care providers . However , nurses are permitted by most jurisdictions to practice independently in a variety of settings depending on training level . In the postwar period , ___MASK87___ education has undergone a process of diversification towards advanced and specialized credentials , and many of the traditional regulations and provider roles are changing . In economics , cargo or freight are goods or produce being conveyed  generally for ___MASK1___ gain  by ship , boat , or aircraft , although the term is now often extended to cover all types of freight , including that carried by train , van , truck , or intermodal container . The term cargo is also used in case of goods in the cold - chain , because the perishable inventory is always in transit towards a final end - use , even when it is held in cold storage or other similar climate - controlled facility . A boat is a watercraft of a large range of sizes designed to float , plane , work or ___MASK82___ on water . Small boats are typically found on inland waterways ( e . g ., rivers and lakes ) or in protected coastal areas . However , boats such as the whaleboat were designed for operation from a ship in an offshore environment . In naval terms , a boat is a vessel small enough to be carried aboard another vessel ( a ship ). Another less restrictive definition is a vessel that can be lifted out of the water . Some definitions do not make a distinction in size , as bulk freighters long on the Great Lakes are called oreboats . For reasons of naval tradition , submarines are usually referred to as ' boats ' rather than ' ships ', regardless of their size and shape . Ships are generally distinguished from boats based on their larger size , shape and cargo or passenger capacity . An ocean ( the sea of classical antiquity ) is a body of saline water that composes much of a planet ' s hydrosphere . On Earth , an ocean is one of the ___MASK29___ conventional divisions of the World Ocean , which covers almost 71 % of its surface . These are , in descending order by area , the Pacific , Atlantic , Indian , Southern ( Antarctic ), and Arctic Oceans . The word " sea " is often used interchangeably with " ocean " in American English but , strictly speaking , a sea is a body of saline water ( generally a division of the world ocean ) partly or fully enclosed by land . Amphibious warfare is a type of offensive ___MASK8___ operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach . Through history the operations were conducted using ship ' s boats as the primary method of delivering troops to shore . Since the Gallipoli Campaign specialised watercraft were increasingly designed for landing troops , materiel and vehicles , including by landing craft and for insertion of commandos , by fast patrol boats , zodiacs ( rigid inflatable boats ) and from mini - submersibles . A lake is an area of variable size filled with water , localized in a basin , that is surrounded by land , apart from any river or other outlet that serves to feed or drain the lake . Lakes lie on land and are not part of the ocean , and therefore are distinct from lagoons , and are also larger and deeper than ponds , though there are no ___MASK42___ or scientific definitions . Lakes can be contrasted with rivers or streams , which are usually flowing . Most lakes are fed and drained by rivers and streams . A sea is a large body of salt water that is surrounded in whole or in part by land . More broadly , " the sea " is the interconnected system of Earth ' s salty , oceanic waters  considered as one global ocean or as several principal oceanic divisions . The sea moderates Earth ' s climate and has important roles in the water cycle , ___MASK91___ cycle , and nitrogen cycle . Although the sea has been traveled and explored since prehistory , the modern scientific study of the sea  oceanography  dates broadly to the British " Challenger " expedition of the 1870s . The sea is conventionally divided into up to five large oceanic sections  including the International Hydrographic Organization ' s four named oceans ( the Atlantic , Pacific , Indian , and Arctic ) and the Southern Ocean ; smaller , second - order sections , such as the Mediterranean , are known as " seas ". A navy or maritime force is a fleet of waterborne ___MASK8___ vessels ( watercraft ) and its associated naval ___MASK63___ , both sea - based and land - based . It is the branch of a nation ' s armed forces principally designated for naval and amphibious warfare ; namely , lake - borne , riverine , littoral , or ocean - borne combat operations and related functions . It includes anything conducted by surface ships , amphibious ships , submarines , and seaborne ___MASK63___ , as well as ancillary support , communications , training , and other fields ; recent developments have included space - related operations . The strategic offensive role of a navy is projection of force into areas beyond a country ' s shores ( for example , to protect sea - lanes , ferry troops , or attack other navies , ports , or shore installations ). The strategic defensive purpose of a navy is to frustrate seaborne projection - of - force by enemies . The strategic task of the navy also may incorporate nuclear deterrence by use of Submarine - launched ballistic missiles . Naval operations can be broadly divided between riverine and littoral applications ( brown - water navy ), open - ocean applications ( blue - water navy ), and something in between ( green - water navy ), although these distinctions are more about strategic scope than tactical or operational division . X - radiation ( composed of X - rays ) is a form of electromagnetic radiation . Most X - rays have a wavelength ranging from 0 . 01 to 10 nanometers , corresponding to frequencies in the range 30 petahertz to 30 exahertz ( 3 × 10 Hz to 3 × 10 Hz ) and energies in the range 100 eV to 100 keV . X - ray wavelengths are shorter than those of UV rays and typically longer than those of gamma rays . In many languages , X - radiation is referred to with terms meaning Röntgen radiation , after the German ( German - Dutch to be precise ) ___MASK59___ Wilhelm Röntgen , who usually is credited as its ___MASK15___ , and who had named it " X - radiation " to signify an unknown type of radiation . Spelling of " X - ray ( s )" in the English language includes the variants " x - ray ( s )", " xray ( s )", and " X ray ( s )". A hospital is a health care institution providing patient treatment with specialized medical and nursing staff and medical equipment . The best - known type of hospital is the ___MASK53___ hospital , which typically has an emergency department to treat urgent health problems ranging from fire and accident victims to a heart attack . A district hospital typically is the ___MASK29___ health care facility in its region , with large numbers of beds for intensive care and additional beds for patients who need long - term care . Specialised hospitals include trauma centres , rehabilitation hospitals , children ' s hospitals , seniors ' ( geriatric ) hospitals , and hospitals for dealing with specific medical needs such as psychiatric treatment ( see psychiatric hospital ) and certain disease categories . Specialised hospitals can help reduce health care costs compared to ___MASK53___ hospitals . A ship is a large buoyant watercraft . Ships are generally distinguished from boats based on size , shape and cargo or passenger capacity . Ships are used on lakes , seas , rivers , and oceans for a variety of activities , such as the transport of people or goods , fishing , ___MASK67___ , public safety , and warfare . Historically , a " ship " was a sailing vessel with at least three square - rigged masts and a full bowsprit . An emergency department ( ED ), also known as an accident & emergency department ( A & E ), emergency room ( ER ) or casualty department , is a medical treatment facility specializing in emergency medicine , the acute care of patients who present without ___MASK55___ appointment ; either by their own means or by that of an ambulance . The emergency department is usually found in a hospital or other primary care center . The armed forces of a country are its government - sponsored defense , fighting forces , and organizations . They exist to further the foreign and domestic policies of their governing body and to defend that body and the nation it represents from external and internal aggressors . In broad usage , the terms " armed forces " and " ___MASK8___ " are often treated synonymously , although in technical usage a distinction is sometimes made in which a country ' s armed forces may include both its ___MASK8___ and other paramilitary forces . Armed force is the use of armed forces to achieve political objectives . The study of the use of armed forces is called ___MASK8___ science . Broadly speaking , this involves considering offense and defense at three " levels ": strategy , operational art , and tactics . All three levels study the application of the use of force in order to achieve a desired objective . A patient is any recipient of health care services . The patient is most often ill or injured and in need of treatment by a advanced practice registered ___MASK87___ , physiotherapist , ___MASK25___ , ___MASK25___ assistant , psychologist , podiatrist , veterinarian , or other health care provider . Magnetic resonance imaging ( MRI ) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease . MRI scanners use strong magnetic fields , ___MASK96___ waves , and field gradients to generate images of the inside of the body . Sailing comprises wind propulsion of a craft by means of sails or other airfoils and steering it over water , ice or land , depending on the type of craft . A ___MASK3___ manages the force of the wind on the sails by adjusting their angle with respect to the moving sailing craft and sometimes by adjusting the sail area . The force transmitted from the sails is resisted by forces from the hull , keel , and rudder of a sailing craft , by forces from skate runners for an iceboat , and by forces from wheels for a land sailing craft to allow steering a course on a point of sail with respect to the true wind .