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  • Anatomia 171 domande A branch of biology dealing with the structure of organisms.
  • Organismi 54 domande Any living biological entity, such as an animal, plant, fungus, or bacterium.
    • Eukaryota 16 domande One of the three domains of life (the others being BACTERIA and ARCHAEA), also called Eukarya. These are organisms whose cells are enclosed in membranes and possess a nucleus. They comprise almost all multicellular and many unicellular organisms, and are traditionally divided into groups (sometimes called kingdoms) including ANIMALS; PLANTS; FUNGI; and various algae and other taxa that were previously part of the old kingdom Protista.
    • Archaea 0 domande One of the three domains of life (the others being BACTERIA and Eukarya), formerly called Archaebacteria under the taxon Bacteria, but now considered separate and distinct. They are characterized by: (1) the presence of characteristic tRNAs and ribosomal RNAs; (2) the absence of peptidoglycan cell walls; (3) the presence of ether-linked lipids built from branched-chain subunits; and (4) their occurrence in unusual habitats. While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. The domain contains at least four kingdoms: CRENARCHAEOTA; EURYARCHAEOTA; NANOARCHAEOTA; and KORARCHAEOTA.
    • Batteri 27 domande One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE
      • Acidobacteria 0 domande A physiologically diverse phylum of acidophilic, gram-negative bacteria found in a wide variety of habitats, but particularly abundant in soils and sediments.
      • Agricultural Inoculants 0 domande Beneficial microorganisms (bacteria or fungi) encapsulated in carrier material and applied to the environment for remediation and enhancement of agricultural productivity.
      • Forme Atipiche Di Batteri 0 domande Microorganisms that have undergone greater changes than normal in morphology, physiology, or cultural characteristics.
      • Batteri Aerobi 0 domande
      • Batteri Anaerobi 0 domande
      • Bacteroidetes 0 domande A phylum of bacteria comprised of three classes: Bacteroides, Flavobacteria, and Sphingobacteria.
      • Agenti Patogeni Presenti Nel Sangue 0 domande Infectious organisms in the BLOOD, of which the predominant medical interest is their contamination of blood-soiled linens, towels, gowns, BANDAGES, other items from individuals in risk categories, NEEDLES and other sharp objects, MEDICAL WASTE and DENTAL WASTE, all of which health workers are exposed to. This concept is differentiated from the clinical conditions of BACTEREMIA; VIREMIA; and FUNGEMIA where the organism is present in the blood of a patient as the result of a natural infectious process.
      • Chlorobi 0 domande A phylum of anoxygenic, phototrophic bacteria including the family Chlorobiaceae. They occur in aquatic sediments, sulfur springs, and hot springs and utilize reduced sulfur compounds instead of oxygen.
      • Cloroflessi 0 domande Phylum of green nonsulfur bacteria including the family Chloroflexaceae, among others.
      • Cyanobacteria 0 domande A phylum of oxygenic photosynthetic bacteria comprised of unicellular to multicellular bacteria possessing CHLOROPHYLL a and carrying out oxygenic PHOTOSYNTHESIS. Cyanobacteria are the only known organisms capable of fixing both CARBON DIOXIDE (in the presence of light) and NITROGEN. Cell morphology can include nitrogen-fixing heterocysts and/or resting cells called akinetes. Formerly called blue-green algae, cyanobacteria were traditionally treated as ALGAE.
      • Batteri Che Producono Endospore 2 domande A group of rods or cocci whose taxonomic affinities are uncertain. They form endospores, thick-walled bodies formed within the vegetative cells of certain bacteria, able to withstand adverse environmental conditions for prolonged periods.
      • Fibrobacteres 0 domande A phylum of gram-negative bacteria closely related to the BACTEROIDETES. Species have been found in the gastrointestinal tracts of animals, especially termites, though indications are that species are more broadly distributed in other environments.
      • Fusobatteri 0 domande A phylum of anaerobic, gram-negative bacteria with a chemoorganotrophic heterotrophic metabolism. They are resident flora of the OROPHARYNX.
      • Batteri Gram-Negativi 12 domande Bacteria which lose crystal violet stain but are stained pink when treated by Gram's method.
        • Anaplasmataceae 0 domande A family of bacteria which inhabit RED BLOOD CELLS and cause several animal diseases.
        • Arcobacter 0 domande A genus of gram-negative, aerotolerant, spiral-shaped bacteria isolated from water and associated with diarrhea in humans and animals.
        • Bartonellaceae 0 domande A family of small gram-negative bacteria whose organisms are parasites of erythrocytes in man and other vertebrates and the etiologic agents of several diseases.
        • Brachyspira 0 domande A genus of spiral bacteria of the family Brachyspiraceae.
        • Buchnera 0 domande A genus of gram-negative bacteria which are obligately intracellular endosymbionts of APHIDS. The bacteria are found within specialized cells in the aphid body cavity.
        • Campylobacter 0 domande A genus of bacteria found in the reproductive organs, intestinal tract, and oral cavity of animals and man. Some species are pathogenic.
        • Chlamydiales 0 domande An order of obligately intracellular, gram-negative bacteria that have the chlamydia-like developmental cycle of replication. This is a two-stage cycle that includes a metabolically inactive infectious form, and a vegetative form that replicates by binary fission. Members of Chlamydiales are disseminated by aerosol or by contact. There are at least six recognized families: CHLAMYDIACEAE, Criblamydiaceae, Parachlamydiaceae, Rhabdochlamydia, Simkaniaceae, and Waddliaceae.
        • Cloroflesso 0 domande A genus of green nonsulfur bacteria in the family Chloroflexaceae. They are photosynthetic, thermophilic, filamentous gliding bacteria found in hot springs.
        • Batteri Aerobigram-Negativi 0 domande A large group of aerobic bacteria which show up as pink (negative) when treated by the gram-staining method. This is because the cell walls of gram-negative bacteria are low in peptidoglycan and thus have low affinity for violet stain and high affinity for the pink dye safranine.
        • Batteri Anaerobi Gram-Negativi 1 quesito A large group of anaerobic bacteria which show up as pink (negative) when treated by the Gram-staining method.
          • Cocchi Anaerobi Gram-Negativi I 0 domande A group of anaerobic coccoid bacteria that show up as pink (negative) when treated by the gram-staining method.
          • Bastoncelli Anaerobi Elicoidali, Curvi O Diritti Gram-Positivi 1 quesito A group of anaerobic, rod-shaped bacteria that show up as pink (negative) when treated by the Gram-staining method.
            • Fibrobacteres 0 domande A phylum of gram-negative bacteria closely related to the BACTEROIDETES. Species have been found in the gastrointestinal tracts of animals, especially termites, though indications are that species are more broadly distributed in other environments.
            • Veillonellaceae 0 domande A family of gram-negative bacteria, in the order Clostridiales.
            • Anaerobiospirillum 0 domande A genus of gram-negative, spiral-shaped bacteria in the family SUCCINIVIBRIONACEAE. It has been isolated from the THROAT and COLON of beagle dogs and from human FECES.
            • Bacteroidaceae 0 domande A family of gram-negative bacteria found primarily in the intestinal tracts and mucous membranes of warm-blooded animals. Its organisms are sometimes pathogenic.
              • Bacteroides 0 domande A genus of gram-negative, anaerobic, rod-shaped bacteria. Its organisms are normal inhabitants of the oral, respiratory, intestinal, and urogenital cavities of humans, animals, and insects. Some species may be pathogenic.
                • Bacteroides Fragilis 0 domande Gram-negative bacteria occurring in the lower intestinal tracts of man and other animals. It is the most common species of anaerobic bacteria isolated from human soft tissue infections.
              • Porphyromonas 0 domande A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods or coccobacilli. Organisms in this genus had originally been classified as members of the BACTEROIDES genus but overwhelming biochemical and chemical findings indicated the need to separate them from other Bacteroides species, and hence, this new genus was created.
              • Prevotella 0 domande A genus of gram-negative, anaerobic, nonsporeforming, nonmotile rods. Organisms of this genus had originally been classified as members of the BACTEROIDES genus but overwhelming biochemical and chemical findings in 1990 indicated the need to separate them from other Bacteroides species, and hence, this new genus was established.
            • Bilophila 0 domande A genus of gram-negative, anaerobic bacteria in the family Desulfovibrionaceae. It was originally recovered from infections in patients with gangrenous and PERFORATED APPENDICITIS. It is also associated with ABSCESS; BACTEREMIA; and BILIARY TRACT sepsis.
            • Brachyspira 0 domande A genus of spiral bacteria of the family Brachyspiraceae.
            • Butyrivibrio 0 domande A species of anaerobic bacteria, in the family Lachnospiraceae, found in RUMINANTS. It is considered both gram-positive and gram-negative.
            • Chlorobium 0 domande A genus of phototrophic, obligately anaerobic bacteria in the family Chlorobiaceae. They are found in hydrogen sulfide-containing mud and water environments.
            • Chromatium 0 domande A genus of gram-negative, ovoid to rod-shaped bacteria that is phototrophic. All species use ammonia as a nitrogen source. Some strains are found only in sulfide-containing freshwater habitats exposed to light while others may occur in marine, estuarine, and freshwater environments.
            • Desulfovibrio 0 domande A genus of gram-negative, anaerobic, rod-shaped bacteria capable of reducing sulfur compounds to hydrogen sulfide. Organisms are isolated from anaerobic mud of fresh and salt water, animal intestines, manure, and feces.
            • Desulfuromonas 0 domande A genus of gram-negative, anaerobic, nonsporeforming bacteria in the family Desulfuromonadaceae. It is found in anoxic marine sediments.
            • Dichelobacter Nodosus 0 domande A gram-negative, obligate anaerobe of the family Cardiobacteriaceae. It has polar fimbriae and is the causative agent of FOOT ROT and DIGITAL DERMATITIS. It is the lone species in the genus Dichelobacter.
            • Ectothiorhodospiraceae 0 domande A family in the order Chromatiales, class GAMMAPROTEOBACTERIA. These are haloalkaliphilic, phototrophic bacteria that deposit elemental sulfur outside their cells.
            • Fusobacterium 0 domande A genus of gram-negative, anaerobic, rod-shaped bacteria found in cavities of humans and other animals. No endospores are formed. Some species are pathogenic and occur in various purulent or gangrenous infections.
            • Geobacter 0 domande A genus of gram-negative, anaerobic, metal-reducing bacteria in the family Geobacteraceae. They have the ability to oxidize a variety of organic compounds, including AROMATIC HYDROCARBONS.
            • Leptotrichia 0 domande A genus of anaerobic, gram-negative bacteria in the family Fusobacteriaceae. Some species cause BACTEREMIA and some intra-amniotic infections.
            • Oxalobacter Formigenes 0 domande The sole species of the genus Oxalobacter consisting of straight or curved gram-negative rods with rounded ends. Cells are nonmotile, nonsporing, and use oxylates as the only source of CARBON and energy, with formate and CARBON DIOXIDE as end products. They are isolated from lake sediments and from the rumen or large bowel of humans and animals. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Propionigenium 0 domande A genus of strictly anaerobic, nonsporeforming gram-negative bacteria in the family Fusobacteriaceae. Species in this genus are popularly used in biochemical research.
            • Selenomonas 0 domande Curved bacteria, usually crescent-shaped rods, with ends often tapered, occurring singly, in pairs, or short chains. They are non-encapsulated, non-sporing, motile, and ferment glucose. Selenomonas are found mainly in the human buccal cavity, the rumen of herbivores, and the cecum of pigs and several rodents. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Spirochaetaceae 1 quesito A family of spiral bacteria of the order SPIROCHAETALES.
            • Succinivibrionaceae 0 domande A family of gram-negative, rod-shaped bacteria isolated from the RUMEN of SHEEP and CATTLE and from human FECES. They are chemoorganotrophic and strictly anaerobic.
            • Thauera 0 domande A genus of gram-negative, rod-shaped bacteria able to anaerobically oxidize and degrade toluene.
            • Thermotoga Maritima 0 domande A rod-shaped bacterium surrounded by a sheath-like structure which protrudes balloon-like beyond the ends of the cell. It is thermophilic, with growth occurring at temperatures as high as 90 degrees C. It is isolated from geothermally heated marine sediments or hot springs. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
            • Thermotoga Neapolitana 0 domande A species of extremophilic bacteria in the family Thermotogaceae. Generally anaerobic but in the presence of OXYGEN, it can produce hydrogen gas as a byproduct of metabolism.
            • Wolinella 0 domande A genus of gram-negative, anaerobic, rod-shaped bacteria isolated from the bovine RUMEN, the human gingival sulcus, and dental PULPITIS infections.
        • Bastoncelli Anaerobi Gram-Negativi Facoltativi 7 domande A large group of facultatively anaerobic, rod-shaped bacteria that show up as pink (negative) when treated by the gram-staining method.
        • Batteri Gram-Negativi Fotosintetici Ossidativi 0 domande Widely distributed unicellular or multicellular bacteria. The CYANOBACTERIA use chlorophyll a and phycobilins for oxygenic photosynthesis while genera in the Prochlorales use both chlorophyll a and b but not phycobilins.
        • Helicobacter 1 quesito A genus of gram-negative, spiral-shaped bacteria that has been isolated from the intestinal tract of mammals, including humans. It has been associated with PEPTIC ULCER.
        • Batteri Lawsonia 0 domande A genus of gram-negative, obligate intracellular bacteria causing a proliferative enteritis in animals, especially pigs, deer, horses, and rabbits.
        • Methylosinus 0 domande A genus of gram-negative rods which form exospores and are obligate methanotrophs.
        • Oceanospirillaceae 0 domande A family of gram-negative bacteria in the order Oceanospirillales.
        • Ornithobacterium 0 domande A genus of gram-negative, chemoorganotrophic bacteria, in the family FLAVOBACTERIACEAE. It is pathogenic in BIRDS.
        • Piscirickettsiaceae 0 domande A family of gram-negative bacteria, in the order Thiotrichales.
        • Planctomycetales 0 domande A phylum of gram-negative bacteria whose members are found in a variety of water habitats as well as animal tissues.
        • Rhodobacter 0 domande A genus of gram-negative bacteria widely distributed in fresh water as well as marine and hypersaline habitats.
        • Rhodomicrobium 0 domande A genus, in the family HYPHOMICROBIACEAE, comprised of ovoid-shaped bacteria with polar growth and a characteristic vegetative growth cycle. Cells grow preferably photoheterotrophically under anaerobic conditions in the light, but will also grow under microaerobic or aerobic conditions in the dark. (From Bergey's Manual of Determinative Bacteriology, 9th ed)
        • Rhodovulum 0 domande A genus of facultatively or obligately anaerobic marine phototrophic bacteria, in the family RHODOBACTERACEAE.
        • Rickettsiaceae 0 domande A family of small, gram-negative organisms, often parasitic in humans and other animals, causing diseases that may be transmitted by invertebrate vectors.
        • Roseobacter 0 domande A genus of obligately aerobic marine phototrophic and chemoorganotrophic bacteria, in the family RHODOBACTERACEAE.
        • Spirillaceae 0 domande A family of gram-negative bacteria in the order Nitrosomonadales. It formerly included the genera CAMPYLOBACTER and SPIRILLUM, then was abandoned, and is now reinstated as a family with a single genus SPIRILLUM.
        • Tenericutes 3 domande A phylum of gram-negative bacteria consisting of cells bounded by a plasma membrane. Its organisms differ from other bacteria in that they are devoid of cell walls. This phylum was formerly the class Mollicutes. Mollicutes is now the sole class in the phylum Tenericutes.
        • Verrucomicrobia 0 domande A phylum of gram-negative bacteria containing seven class-level groups from a wide variety of environments. Most members are chemoheterotrophs.
      • Batteri Gram-Positivi 12 domande Bacteria which retain the crystal violet stain when treated by Gram's method.
      • Planctomycetales 0 domande A phylum of gram-negative bacteria whose members are found in a variety of water habitats as well as animal tissues.
      • Proteobacteria 0 domande A phylum of bacteria consisting of the purple bacteria and their relatives which form a branch of the eubacterial tree. This group of predominantly gram-negative bacteria is classified based on homology of equivalent nucleotide sequences of 16S ribosomal RNA or by hybridization of ribosomal RNA or DNA with 16S and 23S ribosomal RNA.
      • Spirochaetales 0 domande An order of slender, flexuous, helically coiled bacteria, with one or more complete turns in the helix.
      • Batteri Riduttori Di Zolfo 0 domande A group of gram-negative, anaerobic bacteria that is able to oxidize acetate completely to carbon dioxide using elemental sulfur as the electron acceptor.
      • Verrucomicrobia 0 domande A phylum of gram-negative bacteria containing seven class-level groups from a wide variety of environments. Most members are chemoheterotrophs.
    • Virus 1 quesito Minute infectious agents whose genomes are composed of DNA or RNA, but not both. They are characterized by a lack of independent metabolism and the inability to replicate outside living host cells.
    • Organism Forms 1 quesito Specific states or life cycle stages of organisms. These include post-embryonic stages of insects, symbiotic relationships between organisms, and reproductive elements such as spores.
  • Malattie 348 domande Any impairment of normal physiological function affecting all or part of an organism, esp a specific pathological change caused by infection, stress, etc, producing characteristic symptoms; illness or sickness in general.
  • Sostanze chimiche e Farmaci 207 domande Any substance used in or resulting from a reaction involving changes to atoms or molecules, especially one derived artificially for practical use and any synthetic, semisynthetic, or natural chemical substance used in the treatment, prevention, or diagnosis of disease, or for other medical reasons.
  • Tecniche ed apparecchiature analitiche, diagnostiche e terapeutiche 109 domande
  • Psichiatria e Psicologia 15 domande The branches of medicine concerned with the diagnosis and treatment of mental illness and the scientific study of all forms of human and animal behaviour, sometimes concerned with the methods through which behaviour can be modified.
  • Scienze biologiche 31 domande
  • Scienze naturali 17 domande
  • Antropologia, Formazione, Sociologia e fenomeni sociali 3 domande
  • Tecnologia, Industria, Agricoltura 7 domande
  • Discipline umanistiche 0 domande The study of literature, philosophy, and the arts.
  • Scienza dell'informazione 0 domande The field of knowledge, theory, and technology dealing with the collection of facts and figures, and the processes and methods involved in their manipulation, storage, dissemination, publication, and retrieval. It includes the fields of COMMUNICATION; PUBLISHING; LIBRARY SCIENCE; and informatics.
  • Gruppi di persone 9 domande
  • Assistenza sanitaria 45 domande
  • Caratteristiche della Pubblicazione 4 domande
  • Luoghi geografici 10 domande The study of the natural features of the earth's surface, including topography, climate, soil, vegetation, etc, and man's response to them.
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