The Journal of Microscopy and Natural Science

Title Varies: V.1-2, Journal

Madjalah ilmu alam untuk Indonesia. Indonesian journal for natural science

Volumes 4-66 also numbered in series

The Natural Science Journal

Organ of the Atlantic Scientific Bureau

Transactions and Proceedings of the Perthshire Society of Natural Science

Preceded by Proceedings, 1869-86

The Canadian naturalist and quarterly journal of science. With the proceedings of the Natural History Society of Montreal ...

Mode of access: Internet.

Plasma biochemical responses of the planktivorous filter-feeding silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) to prolonged toxic cyanobacterial blooms in natural waters

The planktivorous filter-feeding silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis) are the attractive candidates for bio-control of plankton communities to eliminate odorous populations of cyanobacteria. However, few studies focused on the health of such fishes in natural water body with vigorous toxic blooms. Blood parameters are useful and sensitive for diagnosis of diseases and monitoring of the physiological status of fish exposed to toxicants. To evaluate the impact of toxic cyanobacterial blooms on the planktivorous fish, 12 serum chemistry variables were investigated in silver carp and bighead carp for 9 months, in a large net cage in Meiliang Bay, a hypereutrophic region of Lake Taihu. The results confirmed adverse effects of cyanobacterial blooms on two phytoplanktivorous fish, which mainly characterized with potential toxicogenomic effects and metabolism disorders in liver, and kidney dysfunction. In addition, cholestasis was intensively implied by distinct elevation of all four related biomarkers (ALP, GGT, DBIL, TBIL) in bighead carp. The combination of LDH, AST activities and DBIL, URIC contents for silver carp, and the combination of ALT. ALP activities and TBIL, DBIL. URIC concentrations for bighead carps were found to most strongly indicate toxic effects from cyanobacterial blooms in such fishes by a multivariate discriminant analysis. (C) 2009 Elsevier B.V. All rights reserved.

Parentage determination of an isolated Yangtze finless porpoise population Neophocaena phocaenoides asiaeorientalis in the Yangtze Tian-e-Zhou Baiji National Natural Reserve based on molecular data

Reproductive behaviors are poorly known for the Yangtze finless porpoise Neophocaena phocaenoides asiaeorientalis. In this study, the parentage of an isolated Yangtze finless porpoise population inhabiting the Yangtze Tian-e-Zhou Baiji National Natural Reserve is determined by analysis of microsatellite loci and mitochondrial DNA (mtDNA) control region sequences, and the porpoise's reproductive behaviors are studied. Overall 4 full parentage assignments and additional 3 single parentage assignments were determined for the population of 23 individuals. The analysis shows that their estimated reproductive cycle is shorter than that reported previously and there probably exists an overlapping between gestation and lactation period. The Study also shows that the female does not show fidelity to a particular male for breeding and vice versa, the oldest males did not monopolize mating and the dominance rank could not be so strict for the porpoise society. Moreover, the porpoise's mating pattern and relatedness among candidate parents are discussed here. These results provide important information for making guidelines of management and conservation for this protected population.

Effect of microwave on formation/decomposition of natural gas hydrate

Natural gas hydrate (NGH) reservoirs have been considered as a substantial future clean energy resource and how to recover gas from these reservoirs feasibly and economically is very important. Microwave heating will be taken as a promising method for gas production from gas hydrates for its advantages of fast heat transfer and flexible application. In this work, we investigate the formation/decomposition behavior of natural gas hydrate with different power of microwave (2450MHZ), preliminarily analyze the impact of microwave on phase equilibrium of gas hydrate,and make calculation based on van der Waals-Platteeuw model. It is found that microwave of a certain amount of power can reduce the induction time and sub-cooling degree of NGH formation, e.g., 20W microwave power can lead to a decrease of about 3A degrees C in sub-cooling degree and the shortening of induction time from 4.5 hours to 1.3 hours. Microwave can make rapid NGH decomposition, and water from NGH decomposition accelerates the decomposition of NGH with the decomposition of NGH. Under the same pressure, microwave can increase NGH phase equilibrium temperature. Different dielectric properties of each composition of NGH may cause a distinct difference in temperature in the process of NGH decomposition. Therefore, NGH decomposition by microwave can be affected by many factors.

When all you have is a hammer ...: RCTs and hegemony in science

People diagnosed with autism spectrum disorder (ASD) deserve the same respect as any other person and should be free to benefit from scientific research that can help them achieve skills which enable them to reach their full potential. Over the past 40 years Applied Behaviour Analysis (ABA) has utilised inductive, natural science methods to investigate techniques for the analysis and augmentation of socially significant behaviours. Unfortunately, many individuals with ASD in the UK cannot avail of these techniques because of an obdurate reliance on randomised controlled trials (RCTs) as the single most respectable measure of effectiveness of interventions. In this paper we focus on how the debate about RCTs is played out in the ‘autism wars’.

Organizations concerned with the teaching of science and mathematics in Britain. 'Organizaciones que se ocupan de la enseñanza de las Ciencias y Matemáticas en Gran Bretaña'.

Texto en lengua inglesa

A “lição de coisas”: o Museu Paraense e o ensino da história natural (1889-1900)

Meu objetivo nesta dissertação é analisar a difusão da História Natural no Pará durante o final do século XIX, por meio do ensino de ciências promovido pelo Museu Paraense de História Natural e Etnografia (1889-1900). No estudo, enfatizo as noções de Educação e História Natural nos discursos dos sujeitos envolvidos historicamente com a Instituição, e as estratégias por ele utilizadas para difundir ciência no Estado. Identifico, ainda, alguns episódios encontrados nos relatórios dos Governadores paraenses e do Boletim do Museu Paraense, evidenciando que desde sua idealização, em 1866, objetivou-se estudar a natureza local, publicar os resultados das pesquisas e promover lições sobre História Natural. Discuto a importância educacional das Conferências Públicas, da formação de jovens aprendizes em Ciências Naturais, do Boletim do Museu Paraense de História Natural e Etnografia (1894) e do Parque Zoobotânico, dentro de suas características específicas. Com isso, o presente estudo alia-se às diferentes disciplinas e correntes de investigação, que têm se ocupado com o estudo da história do ensino e a difusão das informações científicas em Museus de História Natural; e mostra a contribuição desta análise para outras pesquisas sobre a difusão e a história do ensino das Ciências Naturais, além de servir de suporte teórico e metodológico para estudos comparativos na área.

The Proceedings and transactions of the Nova Scotian Institute of Science

Mode of access: Internet.

The best books: a reader's guide to the choice of the best available books (about 100,000) in every department of science, art, and literature, with the dates of the first and last editions, and the prize, size and publisher's name (both English and American) of each book; a contribution towards systematic bibliography,

None of the American edition published after part 4. Parts 5 and 6 have imprinted: London, G, Routledge and sond, limited, 1931-35.

Natural resources report.

Each no. has also a distinctive title.