Xem 1-20 trên 2241 kết quả Species
  • Quý thầy cô giáo và các bạn học sinh có thể tham khảo 10 bài giảng Tiếng Anh 12 bài "Endangered species" để giúp cho việc giảng dạy và học tập được tốt nhất. 10 Bài giảng trong bộ sưu tập sẽ giúp bạn có thêm nhiều tư liệu giảng dạy nhằm hướng dẫn học sinh biết thêm từ vựng và thông tin về một số động đang co nguy cơ bị đe dọa, có hỏi nói về các lòa động vật một cách dễ dàng, đồng thời cải thiện các kỹ năng trong tiếng anh.

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  • Tiếng anh 12 - Bài 10 "Endangered species" hướng dẫn HS học từ và cụm từ về các loài động vật nguy cấp, hỏi và trả lời về động vật đang bị đe dọa, nói về những thông tin của một số loài động vật đang bị đe dọa. Mong rằng giáo án giúp bạn tiết kiệm thời gian trong qua trình soạn thảo giáo án.

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  • Pacific sardine fishery off Oregon started in 1935, but there are recorded landings of sardine in Oregon dating back to 1928. The catch dropped off in the 1940’s with 1948 being the last year of directed fishery landings until 1999 when the fishery was revived. Pacific sardine was managed as a developmental fishery from 1999 to 2005. In 2004, the sardine industry asked the Department of Fish and Wildlife to remove Pacific sardines from the developmental species list and create a limited entry system for the fishery.

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  • This short book is about conserving insects, the most diverse and abundant animals that share our world. In particular, it is about the common focus of conserving individual species of insects. This so-called ‘fine filter’ (or ‘fine grain’) level of conservation parallels much conservation effort for better-understood groups of animals such as mammals and birds, for which species-focused conservation exercises are commonplace.

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  • The diversity of bird species is of special importance as it can create responsive and adaptive behaviours among the whole animal population in wild environment. For this reason, the frequent making of inventory lists of bird species helps assess and evaluate the current status of forest resources in natural conservation areas which are inherently under human pressures in our country. During the two years (2009 - 2010) of the study conducted in Huu Lien Nature Reserve in Lang Son province, records have been made of 168 bird species belonging to 117 genus, 54 families, 17 orders.

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  • Other Nondiphtherial Corynebacteria C. xerosis is a human commensal found in the conjunctiva, nasopharynx, and skin. This nontoxigenic organism is occasionally identified as a source of invasive infection in immunocompromised or postoperative patients and prosthetic joint recipients. C. striatum is found in the anterior nares and on the skin, face, and upper torso of normal individuals. Also nontoxigenic, this organism has been associated with invasive opportunistic infections in severely ill or immunocompromised patients. C.

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  • Harrison's Internal Medicine Chapter 131. Diphtheria and Other Infections Caused by Corynebacteria and Related Species Diphtheria Diphtheria is a nasopharyngeal and skin infection caused by Corynebacterium diphtheriae. Toxigenic strains of C. diphtheriae produce a protein toxin that causes systemic toxicity, myocarditis, and polyneuropathy. The toxin is associated with the formation of pseudomembranes in the pharynx during respiratory diphtheria. While toxigenic strains most frequently cause pharyngeal diphtheria, nontoxigenic strains commonly cause cutaneous disease.

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  • Microbiology and Laboratory Diagnosis These organisms are non-acid-fast, catalase-positive, aerobic or facultatively anaerobic bacilli. Their colonial morphologies vary widely; some species are small and α-hemolytic (similar to lactobacilli), whereas others form large white colonies (similar to yeasts). Many nondiphtherial coryneforms require special medium (e.g., Löffler's, Tinsdale's, or telluride medium) for growth. Epidemiology Humans are the natural reservoirs for several nondiphtherial coryneforms, including C. xerosis, C. pseudodiphtheriticum, C. striatum, C.

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  • This paper focuses on domain-specific senses and presents a method for assigning category/domain label to each sense of words in a dictionary. The method first identifies each sense of a word in the dictionary to its corresponding category. We used a text classification technique to select appropriate senses for each domain. Then, senses were scored by computing the rank scores. We used Markov Random Walk (MRW) model. The method was tested on English and Japanese resources, WordNet 3.0 and EDR Japanese dictionary. ...

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  • We present a web mining method for discovering and enhancing relationships in which a specified concept (word class) participates. We discover a whole range of relationships focused on the given concept, rather than generic known relationships as in most previous work. Our method is based on clustering patterns that contain concept words and other words related to them. We evaluate the method on three different rich concepts and find that in each case the method generates a broad variety of relationships with good precision. ...

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  • 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,...

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  • (BQ) Ebook Life science: Reproduction of Species provides about how are traits passed on from parents to offspring? How does DNA make a copy of itself? Some animals reproduce by sexual reproduction. What is the difference between internal and external fertilization? Give examples.

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  • (BQ) Ebook Like science: Continuing the Species includes of what is the difference between a gene and an allele? How does a mutation cause a new trait? How are monozygotic and dizygotic twins different? Sequence What is the sequence of steps taken by people who wish to breed a new type of organism with certain traits?.

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  • Research objectives: Thesis was the first studied methodically systematic assessment of genetic diversity by morphological indicators combined with molecular markers, identification of Vietnamese native Dendroium species based on the ITS sequences. The results of the thesis have significance in the classification, the conservation service, and selection and breed new varieties; these will be contributing to improve Vietnam orchids.

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  • This research explores the idea of inducing domain-specific semantic class taggers using only a domain-specific text collection and seed words. The learning process begins by inducing a classifier that only has access to contextual features, forcing it to generalize beyond the seeds. The contextual classifier then labels new instances, to expand and diversify the training set. Next, a cross-category bootstrapping process simultaneously trains a suite of classifiers for multiple semantic classes. ...

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  • We present a method for automatically generating focused and accurate topicspecific subjectivity lexicons from a general purpose polarity lexicon that allow users to pin-point subjective on-topic information in a set of relevant documents. We motivate the need for such lexicons in the field of media analysis, describe a bootstrapping method for generating a topic-specific lexicon from a general purpose polarity lexicon, and evaluate the quality of the generated lexicons both manually and using a TREC Blog track test set for opinionated blog post retrieval. ...

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  • This paper proposes a method to extract product features from user reviews and generate a review summary. This method only relies on product specifications, which usually are easy to obtain. Other resources like segmenter, POS tagger or parser are not required. At feature extraction stage, multiple specifications are clustered to extend the vocabulary of product features. Hierarchy structure information and unit of measurement information are mined from the specification to improve the accuracy of feature extraction. ...

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  • The paper presents the Position Specific Posterior Lattice, a novel representation of automatic speech recognition lattices that naturally lends itself to efficient indexing of position information and subsequent relevance ranking of spoken documents using proximity. In experiments performed on a collection of lecture recordings — MIT iCampus data — the spoken document ranking accuracy was improved by 20% relative over the commonly used baseline of indexing the 1-best output from an automatic speech recognizer. The Mean Average Precision (MAP) increased from 0.

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  • In this chapter, we will address the following questions: What are species? How do new species arise? What happens when newly formed species come together? Why do rates of speciation vary? Why do adaptive radiations occur?

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  • This chapter define and discuss the limitations of the four species concepts, describe and provide examples of prezygotic and postzygotic reproductive barriers, distinguish between and provide examples of allopatric and sympatric speciation, explain how polyploidy can cause reproductive isolation, define the term hybrid zone and describe three outcomes for hybrid zones over time.

    ppt45p tangtuy09 21-04-2016 3 1   Download

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