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131.
Urban biodiversity in local newspapers: a historical perspective 总被引:3,自引:1,他引:2
Due to rapid urbanization the conservation and values of urban wildlife are becoming increasingly important study objects. Unfortunately, the lack of historical data makes it difficult to assess the effects of long-term urban land-use changes and human attitudes on local biodiversity. In this paper we show that old newspapers may in some cases provide useful historical data on both urban wildlife and local attitudes towards it. In the city of Turku, southwest Finland, the leading newspaper published 316 observations or reports on local urban mammals, birds and reptiles in 1890–1920, and in addition to these a lot of information on contemporary attitudes towards urban wildlife. At least 12 species of noncaptive mammals, 32 species of birds, and three reptile species were documented in newspapers. The newspaper data seem fairly reliable, and provide valuable information on the development of urban biodiversity. In the study period animals visiting urban areas were often persecuted, in which both adults and children (mainly schoolboys) participated actively. Birds were persecuted less frequently than mammals or reptiles. Some bird species, especially 'song-birds', were actively supported by winter-feeding and by constructing nest-boxes. According to newspapers local people were interested in local biodiversity, especially on phenological events, and benefited from it by getting esthetic pleasure, pet animals, and information on seasonal changes. 相似文献
132.
G Perretta A Violante M Scarpulla M Beciani V Monaco 《Journal of medical primatology》1991,20(7):345-351
The effects of age, sex, pregnancy, were analyzed and data from fasted and fed animals were compared in a population of cynomolgus macaques. No significant sex effects were observed for biochemical values and no changes were found in male hematological parameters in relation to age. Most values of females during pregnancy were within normal ranges. Comparison between fed and fasted animals showed that several biochemical parameters (e.g., ALT, glucose, CPK, LDH) and several hematological parameters (e.g., monocytes, eosinophils, basophils, hemoglobin, MCV, MCHC, and MCH) were affected by food intake. 相似文献
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135.
Accuracy of genomic selection for age at puberty in a multi‐breed population of tropically adapted beef cattle 下载免费PDF全文
M. M. Farah A. A. Swan M. R. S. Fortes R. Fonseca S. S. Moore M. J. Kelly 《Animal genetics》2016,47(1):3-11
Genomic selection is becoming a standard tool in livestock breeding programs, particularly for traits that are hard to measure. Accuracy of genomic selection can be improved by increasing the quantity and quality of data and potentially by improving analytical methods. Adding genotypes and phenotypes from additional breeds or crosses often improves the accuracy of genomic predictions but requires specific methodology. A model was developed to incorporate breed composition estimated from genotypes into genomic selection models. This method was applied to age at puberty data in female beef cattle (as estimated from age at first observation of a corpus luteum) from a mix of Brahman and Tropical Composite beef cattle. In this dataset, the new model incorporating breed composition did not increase the accuracy of genomic selection. However, the breeding values exhibited slightly less bias (as assessed by deviation of regression of phenotype on genomic breeding values from the expected value of 1). Adding additional Brahman animals to the Tropical Composite analysis increased the accuracy of genomic predictions and did not affect the accuracy of the Brahman predictions. 相似文献
136.
This study aimed to evaluate paediatric radiation doses in a dedicated cardiology hospital, with the objective of characterising patterns in dose variation. The ultimate purpose was to define Local (Institutional) Diagnostic Reference Levels (LDRLs) for different types of paediatric cardiac interventional procedures (IC), according to patient age. From a total of 710 cases performed during three consecutive years, by operators with more than 15 years of experience, the age was noted in only 477 IC procedures. The median values obtained for Fluoroscopy Time (FT), Number of Frames (N) and Kerma Area Product (PKA) by age range were 5.8 min, 1322 and 2.0 Gy.cm2 for <1 y; 6.5 min, 1403 and 3.0 Gy.cm2 for 1 to <5 y; 5.9 min, 950 and 7.0 Gy.cm2 for 5 to <10 y; 5.7 min, 940 and 14.0 Gy.cm2 for 10 to <16 y, respectively. A large range of patient dose data is observed, depending greatly on procedure type and patient age. In all age groups the range of median FT, N and PKA values was 3.1–15.8 min, 579–1779 and 1.0–20.8 Gy.cm2 respectively. Consequently, the definition of LDRLs presents challenges mainly due to the multiple clinical and technical factors affecting the outcome. On the other hand the lack of paediatric IC DRLs makes the identification of good practices more difficult. A consensus is needed on IC procedures nomenclature and grouping in order to allow a common assessment and comparison of doses. 相似文献
137.
Rui Peng Juan Le Shu-Lin Yang Jing-Ru Cheng Yan Li Shao-Ting Wang 《Journal of lipid research》2022,63(1):100158
Sex hormones, including androgens, estrogens, and progestogens, are important biomarkers for various diseases. Quantification of sex hormones is typically conducted by LC-MS/MS. At present, most methods require liquid-liquid extraction or solid phase extraction for sample preparation. However, these pretreatments are prone to compromise LC-MS/MS throughput. To improve on the current standard practices, we investigated cold-induced phase separation for sex hormone extraction. After protein precipitation with acetonitrile and adjusting the solution constitution with water, samples were stored at ?30°C for 10 min to generate two distinct phases: an acetonitrile-rich layer on top of a water-rich layer. During this process, the hydrophobic sex hormones spontaneously separate into the upper layer. This simple and reliable cold-induced phase separation-based LC-MS/MS methodology was used here to simultaneously detect estrone, estradiol, estriol, testosterone, androstenedione, dehydroepiandrosterone, progesterone, and 17-hydroxyprogesterone in serum. Validation of this method indicated satisfactory performance, including acceptable linearity, accuracy, precision, and tractability. Compared with the mainstream liquid-liquid extraction-based method, this new method exhibits significant progress in throughput, which shortens the time cost of sample preparation from 90 to 40 min. We propose that this method can be an excellent alternative for sex hormone analysis in routine clinical laboratories. 相似文献
138.
Two generations of conservationists and philosophers have built a strong case for intrinsic values in nature; they are the basis of the normative postulates of conservation biology. I argue that the recognition of intrinsic natural value is a fundamental and non-negotiable aspect of an eco-evolutionary worldview. Recently, relational values, “preferences, principles, and virtues associated with relationships”, have been proposed as a third category of values in nature, which may help to resolve the debate between instrumental and intrinsic valuation. By depicting intrinsic values as part of an unhelpful dichotomy between anthropocentric and ecocentric values, the current assessment of relational values fails to adequately account for the modern philosophical view of intrinsic natural value. The recognition of intrinsic natural value is not merely an academic exercise, but rather a vital aspect of conservation of the biosphere; recognition of value entails the obligation to do what is right, i.e., protect the good. Any attempt to reframe the discussion about values and environmental protection through more formal recognition of relational values will need to more clearly address how relational and intrinsic values coexist and how they can jointly form the basis for nature conservation. 相似文献
139.
The genus Mononychellus is represented by 28 herbivorous mites. Some of them are notorious pests of cassava (Manihot esculenta Crantz), a primary food crop in the tropics. With the exception of Mononychellus tanajoa (Bondar), their geographic distribution is not widely known. This article therefore reports observational and specimen-based occurrence data of Mononychellus species associated with cassava. The dataset consists of 1,513 distribution records documented by the International Center for Tropical Agriculture (CIAT) between 1975 and 2012. The specimens are held at CIAT’s Arthropod Reference Collection (CIATARC). Most of the records are from the genus’ native range in South America and were documented between 1980 and 2000. Approximately 61% of the records belong to M. tanajoa, 25% to M. caribbeanae (McGregor), 10% to M. mcgregori (Flechtmann and Baker) and 2% to M. planki (McGregor). The complete dataset is available in Darwin Core Archive format via the Global Biodiversity Information Facility (GBIF). 相似文献
140.
P. A. Lachenbruch 《Biometrical journal. Biometrische Zeitschrift》1991,33(1):41-45
This paper discusses analysis of dispersion tests in tables with spoiled data, that is, where some cells are missing. BENNETT (1987) gave a method for estimating the missing cells in a two-way table and illustrated it with a simple example. This paper uses GLIM to estimate the models and indicates that the General Linear Model performs the computations without need to estimate the missing values. The binomial error model also may be used for this problem, and is the more natural approach to the problem. 相似文献