Endocrine disrupting effects on the nesting behaviour of male three-spined stickleback Gasterosteus aculeatus L

The analysis of patterns of temporal variability in the nesting behaviour of male threespined stickleback (Gasterosteus aculeatus) exposed to the synthetic oestrogen, 17β-ethinylestradiol, revealed immediate, but transient, treatment-related effects. Gluing frequency and time spent near nest were significantly reduced in exposed fish at the beginning of the experiment. The expression of these behaviours subsequently recovered and there was no effect of treatment on nest building success. The potential causes and implications of these findings are discussed

Direct contributions of dry forests to nutrition: a review

Globally, micronutrient deficiencies are more prevalent than calorie and protein deficiencies. In order to address global micronutrient deficiencies, increasing attention is being paid to the nutritional quality of people’s diets. While conventional agriculture is key for ensuring adequate calories, dietary quality depends on the consumption of a diverse range of micronutrient rich foods. Many wild foods are rich in micronutrients, particularly fruits, vegetables, and animal source food. As a result there has been increasing interest in the value of wild foods to meeting nutritional requirements. We review literature on the consumption of wild foods in dry forest areas to assess the current state of knowledge as to how dry forests may contribute to nutrition. We focus on papers that quantify consumption of wild forest foods. Although there is a great deal of literature that lends weight to the notion that dry forests are important for food security and nutrition, we find surprisingly little evidence of direct contributions to diets. Of 2514 articles identified by our search, only four quantify the consumption of wild foods from dry forests, and only one of these puts this consumption in the context of the entire diet. There is a need for research on the nutritional importance of dry forest foods which combines methodologies from nutrition science with an understanding and appreciation of the ecological, social, cultural and economic context

A Review of the Impacts SMEs as Social Agents of Economic Liberations in Developing Economies

1/w hene.f/ts 1!1 o hooming .\ 1//~ sector can be seen in the creation of a sound industrial hm,· for an emerging eumonn It rang!'~ .fi"om the prm·iswn of' employment, sources of subsistencl'. ,·,luiwble distrthution of IIK0111es to its citi::ens. to deployment of domestic savings for investments. It ul.111 include. bw not limited. to the increase in capital financial gains. important contribution to Cross I >omestic Product (CIJI'i lwrnessing c1{ natil·e raw materials. curtailing rural-urban migration and efficient uti!i::ation o(a nation·.\ resource. as can b~ seen in the case of Taiwan. South Korea, Singapore. <'t( These are cowuries that were huilt on a d\'namic SML sector 1/owever. many less developed economies /w,·e not bel'n a hie to jullt· utili::e the 111cmv henejits of this sl'ctor. perhaps due to ignorance. This revietr <'\llmined the ntenlto which these .1ocial agems (S\1/~s) which hm·e libera!i::ed several economies oflhe d, l'e!opl'd coumries. such as the { nitecl States. { nited 1\ ingdom. Wider Europe and the BRICS countrh ' 1 Bra:: if. R11.11i11. India. ( 'llina wul So111h .lji-icaJ is being treated with levity within the developing econnlllll'.\. The sttu!r howet'l.'r. focuses 011 the .)',\/Es operating within the Nigerian state. It employed in its ennrety !he re1•ie1r ofsecondw:t· duta , 1171/findings revealed a plethora of issues. Of note was the facl that despite the benefit~ of this l'ihrulll sector to the \'igerian economy. the government policies, infrastructures. finances ammtgst others are not Jhl'omble for its gr01111t all(/ sustainability. The authors recommend that the 1\igerian gm·~mlll<'llt as well os gm·emme/11 of other developing economies must invest substamial!t·to the growth. de,·elollllte/11 011(/ sustainohility of SM!~·s through the provision of essential inji·a.1tructures. 1111111111111 er. microfiiiWICI'. 1·ecurin• am/ adequate po!inji-cunework

The Illegal Migration Bill: Second Reading Briefing

Ahead of Second Reading of the Illegal Migration Bill, this briefing from the Royal College of Paediatrics and Child Health (RCPCH) outlines our deep concerns with measures in the bill regarding unaccompanied children. This includes the measures set out in Clause 3 and Clauses 15 – 20. The RCPCH wants to emphasise that the rights of children and young people, as set out in the United Nations Conventions on the Rights of the Child (UNCRC) which has been ratified by the UK, must be protected

Thermal excitation of heavy nuclei with 5-15 GeV/c antiproton, proton and pion beams

Excitation-energy distributions have been derived from measurements of 5.0-14.6 GeV/c antiproton, proton and pion reactions with $^{197}$Au target nuclei, using the ISiS 4$\pi$ detector array. The maximum probability for producing high excitation-energy events is found for the antiproton beam relative to other hadrons, $^3$He and $\bar{p}$ beams from LEAR. For protons and pions, the excitation-energy distributions are nearly independent of hadron type and beam momentum above about 8 GeV/c. The excitation energy enhancement for $\bar{p}$ beams and the saturation effect are qualitatively consistent with intranuclear cascade code predictions. For all systems studied, maximum cluster sizes are observed for residues with E*/A $\sim$ 6 MeV.Comment: 14 pages including 5 figures and 1 table. Accepted in Physics Letter B. also available at http://nuchem.iucf.indiana.edu

Characterization of the chemical signatures of air masses observed during the PEM experiments over the western Pacific

Extensive observations of tropospheric trace species during the second NASA Global Tropospheric Experiment Western Pacific Exploratory Mission (PEM-West B) in February-March 1994 showed significant seasonal variability in comparison with the first mission (PEM-West A), conducted in September-October 1991. In this study we adopt a previously established analytical method, i.e., the ratio C2H2/CO as a measure of the relative degree of atmospheric processing, to elucidate the key similarities and variations between the two missions. In addition, the C2H2/CO ratio scheme is combined with the back-trajectory-based and the LIDAR-based air mass classification schemes, respectively, to make in-depth analysis of the seasonal variation between PEM-West A and PEM-West B (hereinafter referred to as PEM-WA and PEM-WB). A large number of compounds, including long-lived NMHCs, CH4, and CO2, are, as expected, well correlated with the ratio C2H2/CO. In comparison with PEM-WA, a significantly larger range of observed C2H2/CO values at the high end for the PEM-WB period indicates that the western Pacific was more impacted by "fresher" source emissions, i.e., faster or more efficient continental outflow. As in the case of PEM-WA, the C2H2/CO scheme complements the back-trajectory air mass classification scheme very well. By combining the two schemes, we found that the atmospheric processing in the region is dominated by atmospheric mixing for the trace species analyzed. This PEM-WB wintertime result is similar to that found in PEM-WA for the autumn. In both cases, photochemical reactions are found to play a significant role in determining the background mixing ratios of trace gases, and in this way the two processes are directly related and dependent upon each other. This analysis also indicates that many of the upper tropospheric air masses encountered over the western Pacific during PEM-WB may have had little impact from eastern Asia's continental surface sources. NOx mixing ratios were significantly enhanced during PEM-WB when compared with PEM-WA, in the upper troposphere's more atmospherically processed air masses. These high levels of NOx resulted in a substantial amount of photochemical production of O3. A lack of corresponding enhancements in surface emission tracers strongly implies that in situ atmospheric sources such as lightning are responsible for the enhanced upper tropospheric NOx. The similarity in NOx values between the northern (higher air traffic) and southern continental air masses together with the indications of a large seasonal shift suggests that aircraft emissions are not the dominant source. However, photochemical recycling cannot be ruled out as this in situ source of NOx. Copyright 1999 by the American Geophysical Union