Xem 1-20 trên 35 kết quả Genera
  • We establish a correspondence between orbifold and singular elliptic genera of a global quotient. While the former is defined in terms of the fixed point set of the action, the latter is defined in terms of the resolution of singularities. As a byproduct, the second quantization formula of Dijkgraaf, Moore, Verlinde and Verlinde is extended to arbitrary Kawamata log-terminal pairs. 1. Introduction One of the fundamental problems suggested by the intersection homology theory is to determine which characteristic numbers can be defined for singular varieties. ...

    pdf50p noel_noel 17-01-2013 16 4   Download

  • Molecular identification and genetic diversity within species of the genera Hanseniaspora and Kloeckera has many contents: introduction, yeast strain, isolation of DNA for PCR ass, RAPD-PCR analysi, PFGE karyotypin, PCR-RFLP analysis of rDN, karyotyping,...

    pdf11p cscpubka 05-05-2014 25 2   Download

  • Tham khảo sách 'synopsis of some genera of the large pyrenomycetes, by c. g.', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • (BQ) Part 1 book "BRS Microbiology & Immunolog" presents the following contents: General properties of microorganisms, bacteria, important bacterial genera, bacterial diseases, viruses, system based and situational viral infections.

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  • Nấm mốc (fungus, mushroom) là vi sinh vật chân hạch, ở thể tản (thalophyte), tế bào không có diệp lục tố, sống dị dưỡng (hoại sinh, ký sinh, cộng sinh), vách tế bào cấu tạo chủ yếu là chitin, có hay không có celuloz và một số thành phần khác có hàm lượng thấp.

    doc8p lehuuloi 23-11-2010 441 156   Download

  • Nấm học thú y(Vet.fungiology) : Là môn khoa hoc nghiên cứu về nấm và những loài nấm phổ biến gây bệnh cho động vật nuôi, các phương pháp chẩn đoán, phòng và trị bệnh.Nấm học thú y(Vet.fungiology) : Là môn khoa hoc nghiên cứu về nấm và những loài nấm phổ biến gây bệnh cho động vật nuôi, các phương pháp chẩn đoán, phòng và trị bệnh.

    ppt537p nguyentruongson13890 22-10-2010 266 103   Download

  • Spirulina are multicellular and filamentous blue-green microalgae belonging to two separate genera Spirulina and Arthrospira and consists of about 15 species. Of these, Arthrospira platensis is the most common and widely available spirulina and most of the published research and public health decision refers to this specific species. It grows in water, can be harvested and processed easily and has significantly high macro- and micronutrient contents. In many countries of Africa, it is used as human food as an important source of protein and is collected from natural water, dried and eaten....

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  • All female mammals nurse their young with milk, which is secreted from special glands, the mammary glands. According to Mammal Species of the World, 5,702 species were known in 2005. These were grouped in 1,229 genera, 153 families and 29 orders.[1] In 2008 the IUCN completed a five-year, 17,000-scientist Global Mammal Assessment for its IUCN Red List, which counted 5488 accepted species at the end of that period.

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  • The three current genera in the family Closteroviridaeare supported by vector and phylogeneticdata. Dendrogramwas generated using TreePuzzle5.2 with coat protein sequence data in a maximum likelihood model. Numbers represent branch support in percentage following10,000 puzzling steps.

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  • This is a book about the most fearsome disease of modern times, which will strike every fourth citizen of a developed country sometime during his life: cancer. It is not a book about the prevention of cancer, but rather its treatment with plant-derived chemicals. It is an up-to-date and extensive review of plant genera and species with antitumor and antileukemic properties that have been documented in a strictly scientific sense.

    pdf314p crazy_sms 09-05-2012 56 12   Download

  • They use geological and distribution data on the island’s 1,284 plant genera and more than 2,000 endemic plant taxa to identify 19 biomes there, and they describe complex conservation challenges. The next chapter by Benny Chan and Pei-Fen Lee explores the biogeography of the barnacles of Taiwan, relating taxon distributions to coastal geomorphology and the complex array of oceanic currents around the island. Global climate changes in ocean water temperature may permit southerly, warmwater taxa to expand northward, invading habitat presently occupied by coldwater taxa....

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  • Bacteria are non-chlorophyllated unicellular organisms that reproduce by fission and do not present nuclear envelope. Gram´s stain is a staining technique used to classify bacteria based on the different characteristic of their cell walls. Gram-positive or Gram-negative bacteria are determined by the amount and location of peptidoglycan in the cell wall, exhibiting different chemical compositions and structures, cell-wall permeabilities, physiologies, metabolisms, and pathogenicities.

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  • CHAPTER EIGHT Biotic Diversity and Structure During the Neoproterozoic-Ordovician Transition Diversity of 4,122 metazoan genera, 31 calcimicrobial genera, and 470 acritarch species are plotted for the Nemakit-Daldynian– early Tremadoc interval at zonal level.

    pdf29p lqhoang 30-11-2010 36 7   Download

  • Over the past six decades, tourism has experienced continued expansion and diversification becoming one of the largest and fastest growing economic sectors in the world. Many new destinations have emerged alongside the traditional ones of Europe and North America. In the next years an increase of travelling is expected, and the number of related infections will also be higher (http://www.unwto.org/facts/menu.html). Rickettsioses are an important chapter in the field of travel medicine.

    pdf194p wqwqwqwqwq 21-07-2012 20 6   Download

  • In the last 20 years, a number of epidemiological studies have shown that tumor formation and incidence of cardiovascular diseases are inversely related to the intake of fruit and vegetables (Verhoeven et al., 1996). One group of vegetables that has been widely approved for its benefi cial effects on human health are the vegetables from the family Brassicaceae (= Cruciferae). The family Brassicaceae is a large group, having about 3000 species in 350 genera, including several types of edible plants, which are sometimes referred to as “the cabbage family.

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  • Understanding the long-term patterns of speciation and extinction may help sci- entists answer some of the biggest questions about today’s patterns of bio diver- sity—such as why the tropics are so diverse. David Jablonski, a paleontologist at the University of Chicago, has tackled the question by analyzing the fossil record of bivalves, noting where they were located, how large their ranges became, and how long they endured. Jablonski’s analysis of 3,599 species from the past 11 million years revealed a striking pattern.

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  • Plants that have features and characteristics of other species, other genera, other families and even other kingdoms - such as bacteria and mammals - have fascinated man since the dawn of history. Such phenomena, recorded in several mythologies, were in the realm of miracles and the work of God. Now they seem to become realities, though not exactly as described in the ancient folklore.

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  • The Research Centre for Forest Tree Improvement (RCFTI) is a unit within the Forest Science Institute of Vietnam (FSIV) which specialises in tree improvement research and delivery of genetically improved seed and planting stock to meet the planting requirements of the Government of Vietnam (GoV) as well as community and private sector plantation programs. RCFTI carries out an active program of research at stations throughout Vietnam, with its principal research station at Ba Vi.

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  • Developmental biology studies the process by which organisms grow and develop. Originating in embryology, modern developmental biology studies the genetic control of cell growth, differentiation, and "morphogenesis," which is the process that progressively gives rise to tissues, organs, and anatomy. Model organisms for developmental biology include the round worm Caenorhabditis elegans,[39] the fruit fly Drosophila melanogaster,[40] the zebrafish Danio rerio,[41] the mouse Mus musculus,,[42] and the weed Arabidopsis thaliana.

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  • Influenza is an acute respiratory illness caused by infection with influenza viruses. The illness affects the upper and/or lower respiratory tract and is often accompanied by systemic signs and symptoms such as fever, headache, myalgia, and weakness. Outbreaks of illness of variable extent and severity occur nearly every winter. Such outbreaks result in significant morbidity in the general population and in increased mortality rates among certain high-risk patients, mainly as a result of pulmonary complications.

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