Biogeochemical cycles and biodiversity as key drivers of ecosystem services provided by soils

Soils play a pivotal role in major global biogeochemical cycles (carbon, nutrient, and water), while hosting the largest diversity of organisms on land. Because of this, soils deliver fundamental ecosystem services, and management to change a soil process in support of one ecosystem service can either provide co-benefits to other services or result in trade-offs. In this critical review, we report the state-of-the-art understanding concerning the biogeochemical cycles and biodiversity in soil, and relate these to the provisioning, regulating, supporting, and cultural ecosystem services which they underpin. We then outline key knowledge gaps and research challenges, before providing recommendations for management activities to support the continued delivery of ecosystem services from soils. We conclude that, although soils are complex, there are still knowledge gaps, and fundamental research is still needed to better understand the relationships between different facets of soils and the array of ecosystem services they underpin, enough is known to implement best practices now. There is a tendency among soil scientists to dwell on the complexity and knowledge gaps rather than to focus on what we do know and how this knowledge can be put to use to improve the delivery of ecosystem services. A significant challenge is to find effective ways to share knowledge with soil managers and policy makers so that best management can be implemented. A key element of this knowledge exchange must be to raise awareness of the ecosystems services underpinned by soils and thus the natural capital they provide. We know enough to start moving in the right direction while we conduct research to fill in our knowledge gaps. The lasting legacy of the International Year of Soils in 2015 should be for soil scientists to work together with policy makers and land managers to put soils at the centre of environmental policy making and land management decisions.

Interactions between uncoupling protein 2 gene polymorphisms, obesity and alcohol intake on liver function: a large meta-analysed population-based study

BACKGROUND AND OBJECTIVE: Given the role of uncoupling protein 2 (UCP2) in the accumulation of fat in the hepatocytes and in the enhancement of protective mechanisms in acute ethanol intake, we hypothesised that UCP2 polymorphisms are likely to cause liver disease through their interactions with obesity and alcohol intake. To test this hypothesis, we investigated the interaction between tagging polymorphisms in the UCP2 gene (rs2306819, rs599277 and rs659366), alcohol intake and obesity traits such as BMI and waist circumference (WC) on alanine aminotransferase (ALT) and gamma glutamyl transferase (GGT) in a large meta-analysis of data sets from three populations (n=20 242). DESIGN AND METHODS: The study populations included the Northern Finland Birth Cohort 1966 (n=4996), Netherlands Study of Depression and Anxiety (n=1883) and LifeLines Cohort Study (n=13 363). Interactions between the polymorphisms and obesity and alcohol intake on dichotomised ALT and GGT levels were assessed using logistic regression and the likelihood ratio test. RESULTS: In the meta-analysis of the three cohorts, none of the three UCP2 polymorphisms were associated with GGT or ALT levels. There was no evidence for interaction between the polymorphisms and alcohol intake on GGT and ALT levels. In contrast, the association of WC and BMI with GGT levels varied by rs659366 genotype (Pinteraction=0.03 and 0.007, respectively; adjusted for age, gender, high alcohol intake, diabetes, hypertension and serum lipid concentrations). CONCLUSION: In conclusion, our findings in 20 242 individuals suggest that UCP2 gene polymorphisms may cause liver dysfunction through the interaction with body fat rather than alcohol intake.

Aligned platinum nanowire networks from surface-oriented lipid cubic phase templates

Mesoporous metal structures featuring a bicontinuous cubic morphology have a wide range of potential applications and novel opto-electronic properties, often orientation-dependent. We describe the production of nanostructured metal films 1–2 microns thick featuring 3D-periodic ‘single diamond’ morphology that show high out-of-plane alignment, with the (111) plane oriented parallel to the substrate. These are produced by electrodeposition of platinum through a lipid cubic phase (QII) template. Further investigation into the mechanism for the orientation revealed the surprising result that the QII template, which is tens of microns thick, is polydomain with no overall orientation. When thicker platinum films are grown, they also show increased orientational disorder. These results suggest that polydomain QII samples display a region of uniaxial orientation at the lipid/substrate interface up to approximately 2.8 ± 0.3 μm away from the solid surface. Our approach gives previously unavailable information on the arrangement of cubic phases at solid interfaces, which is important for many applications of QII phases. Most significantly, we have produced a previously unreported class of oriented nanomaterial, with potential applications including metamaterials and lithographic masks.

The Birmingham Urban Climate Laboratory: an open meteorological test bed and challenges of the smart city

Existing urban meteorological networks have an important role to play as test beds for inexpensive and more sustainable measurement techniques that are now becoming possible in our increasingly smart cities. The Birmingham Urban Climate Laboratory (BUCL) is a near-real-time, high-resolution urban meteorological network (UMN) of automatic weather stations and inexpensive, nonstandard air temperature sensors. The network has recently been implemented with an initial focus on monitoring urban heat, infrastructure, and health applications. A number of UMNs exist worldwide; however, BUCL is novel in its density, the low-cost nature of the sensors, and the use of proprietary Wi-Fi networks. This paper provides an overview of the logistical aspects of implementing a UMN test bed at such a density, including selecting appropriate urban sites; testing and calibrating low-cost, nonstandard equipment; implementing strict quality-assurance/quality-control mechanisms (including metadata); and utilizing preexisting Wi-Fi networks to transmit data. Also included are visualizations of data collected by the network, including data from the July 2013 U.K. heatwave as well as highlighting potential applications. The paper is an open invitation to use the facility as a test bed for evaluating models and/or other nonstandard observation techniques such as those generated via crowdsourcing techniques.

Cue properties change timing strategies in group movement synchronisation

To maintain synchrony in group activities, each individual within the group must continuously correct their movements to remain in time with the temporal cues available. Cues might originate from one or more members of the group. Current research suggests that when synchronising movements, individuals optimise their performance in terms of minimising variability of timing errors (asynchronies) between external cues and their own movements. However, the cost of this is an increase in the timing variability of their own movements. Here we investigate whether an individual’s timing strategy changes according to the task, in a group scenario. To investigate this, we employed a novel paradigm that positioned six individuals to form two chains with common origin and termination on the circumference of a circle. We found that participants with access to timing cues from only one other member used a strategy to minimise their asynchrony variance. In contrast, the participant at the common termination of the two chains, who was required to integrate timing cues from two members, used a strategy that minimised movement variability. We conclude that humans are able to flexibly switch timekeeping strategies to maintain task demands and thus optimise the temporal performance of their movements.

Purchasing power parity and the unit root tests: a robust analysis

Empirical evidence suggests that real exchange rate is characterized by the presence of near-unity and additive outliers. Recent studeis have found evidence on favor PPP reversion by using the quasi-differencing (Elliott et al., 1996) unit root tests (ERS), which is more efficient against local alternatives but is still based on least squares estimation. Unit root tests basead on least saquares method usually tend to bias inference towards stationarity when additive out liers are present. In this paper, we incorporate quasi-differencing into M-estimation to construct a unit root test that is robust not only against near-unity root but also against nonGaussian behavior provoked by assitive outliers. We re-visit the PPP hypothesis and found less evidemce in favor PPP reversion when non-Gaussian behavior in real exchange rates is taken into account.

A multiplicidade de áreas de atuação do orientador educacional e implicações para a sua formação

Trabalho efetuado, através de pesquisa bibliográfica, enfocando a multiplicidade de ábeas de atuação do Orientador Educacional e as implicações dela decorrentes para sua formação e exercício profissional. A expansão do campo de trabalho do Orientador Educacional e as exigências a respeito de sua formação e exercício profissional, numa perspectiva histórica, foram detectadas pela análise de documentos legais e pronunciamentos do Ministério da Educação e Cultura. Sobre Orientação Vocacional, Aconselhamento, in tegração de Orientação e Currículo, Orientação Educacional na Empresa e Orientação e Aconselhamento em grupo - áreas ~ de atuação do Orientador Educacional que vêm recebendo cres centes solicita~ões - foram feitas apenas considerações g~ rais. Nessa exposição, patenteou-se a complexiftade e profundidade do trabalho do Orientador, que requer, alem de qualidades pessoais ~ preparo técnico-científico adequado, a busca de maneiras funcionais que permitam a este profissional atender aos amplos apelos que lhe são feitos. Numa perspectiva teórica, a formação do Orienta dor Educacional se revelou precária e, mais que isso, insu ficiente, clamando por urgente reformulação. Propôs-se, finalmente, que os Orientadores Educacionais, em seu quotidiano, tornem específico seu campo de trabalho, ou seja, no exercício de sua profissão, dediquem- se,em particular, a uma de suas áreas de atuação.

Importância da orientação educacional no processo educativo

Este trabalho sobre a importância da Orientação Educacional no processo educativo, teve como principal objetivo analisar aspectos fundamentais da orientação que justificassem a posição assumida. o problema de nosso estudo prende-se, sobremodo, a dois aspectos que consideramos fundamentais: 1º - a Orientação Educacional, como parte integrante do processo educativo; 2º - a Orientação Vocacional como sendo área da Orientação Educacional. Na Metodologia utilizamos o tratamento descritivo crítico dos dados da revisão bibliográfica dos assuntos mais importantes tratados nesta proposição. Procurou-se levantar dados, sobre a Orientação Educacional com o objetivo de não só realizar a nossa pesquisa, mas também, contribuir para subsidiar os orientadores educacionais com uma ampla revisão bibliográfica. A escolha dos tópicos, calcada nas hipóteses do trabalho, deve-se à importância dada a aqueles estudados, pelos autores consultados e, também, a própria experiência no campo da orientação. Objetivando o desenvolvimento da presente pesquisa, procuramos na evolução histórica da Orientação Educacional o marco inicial de nossos estudos. Visando a importância, para o trabalho do orientador de uma fundamentação teórica, selecionamos, segundo certos critérios os enfoques que mais tem influenciado os estudos e trabalhos sobre orientação educacional. Procuramos, também, mostrar à importância da orientação Educacional do ponto de vista da Lei 5.692 que a institui obrigatoriamente nas escolas de 19 e 29 graus. Partindo deste campo para o estudo do Serviço da Orientação Educacional, procuramos analisar a "praxis" dos fundamentos teóricos já assinalados. Neste estudo, a título de ilustração foram levantados elementos que esclarecessem a situação da Orientação no Estado do Rio de Janeiro. Observa-se que o número de reinadores das escolas, cumprimento de uma exigência legal, longe ainda está de uma situação que favoreça totalmente à consecução de seus objetivos. No sentido de alcançar os objetivos da Orientação Educacional como nos parecem, particularmente relevantes, sugerimos uma visão integrada da práxis da Orientação Educacional nas escolas. Assim sendo, para satisfazer, não só o imperativo legal. como também, as necessidades da própria escola, torna-se mister que a Orientação Educacional assuma uma posição integrada - posição esta fundamental e imprescindível - para o resultado eficaz no processo educativo.

A aprendizagem dos alunos do Instituto de Educação de Campo Grande: um problema para o orientador educacional

Este trabalho teve como objetivo a análise da clientela do Instituto de Educação de Campo Grande, da 1ª série, diurno e noturno, do Curso de Formação de Professores de 1º grau (1ª a 4ª séries), visando analisar as relações entre aprendizagem, nível sócio-econômico, inteligência, idade e interesse por magistério de 1º grau (1ª a 4ª séries).

A metodologia do ensino superior e a sua significação para a formação do professor de ensino superior feita nos cursos de mestrado em educação

A formação dos docentes para o magistério superior é uma das funções dos Cursos de Mestrado. Na pesquisa das condições em que se desenvolve a formação do professor de Ensino Superior nos Cursos de Mestrado em Educação, identificam-se. entre outras disciplinas básicas, algumas especificamente didáticas: a Metodologia do Ensino Superior no IESAE/cMEd, a Didática do Ensino Superior na UFRJ/CMEd e a Metodologia Didática na PUC/CMEd. Verifica-se não serem obrigatórias essas disciplinas para todos os mestrandos, fato que leva a supor serem suas funções insuficientemente definidas na estrutura curricular desses Cursos, no tocante ã formação do docente. Julgando-se desempenharem essas disciplinas uma mesma função na formação do professor, precisamente daquele que se destina ao magistério superior, supõe-se que a falta de definição do papel por ela desempenhado no currículo dos mestrandos em Educação resulta da imprecisão dos termos Metodologia do Ensino Superior, Didática do Ensino Superior e Metodologia Didática. Esta imprecisão é constatada ao examinar-se a literatura especializada e ao analisar-se as respostas dos mestrandos que cursaram estas disciplinas e que as lecionaram. Os resultados das reflexões dos professores feitas conduziram a opção da Metodologia do Ensino Superior como disciplina eminentemente formativa do docente para este nível de ensino, por considerá-la mais abrangente do que as demais. Pelo mesmo motivo, defende-se sua obrigatoriedade de no currículo de todos os mestrandos em Educação. Caracteriza-se a MES pela interdisciplinar idade, definindo-a como método de trabalho reflexivo, tico e elaborativo que possibilita ao professor de Ensino Superior conduzir adequadamente o processo ensino-aprendizagem. o trabalho consta de duas etapas: a fundamentação teórica e a pesquisa de campo. Na primeira foram feitas: a revisão da literatura, a definição da função da Metodologia do Ensino Superior na formação dos professores e o estudo analítico dos programas das disciplinas Metodologia do Ensino Superior, Didática do Ensino Superior e Metodologia Didática. A pesquisa de campo consiste em aplicação de questionários e entrevistas. o universo da pesquisa compõe-se de todos os mestrandos que cursaram as disciplinas Metodologia de Ensino Superior, Didática do Ensino Superior e Metodologia Didática, dos professores destas disciplinas e dos Coordenadores dos Cursos de Mestrado em Educação do IESAE, da UFRJ e da PUC, respectivamente(1976). Os pressupostos e questionamentos que orientam a pesquisa referem-se à imprecisão conceitual da Metodologia do Ensino Superior e a seu papel indefinido na formação do professor de Ensino Superior.

Novel active and passive anti-vibration mountings

This paper investigates a novel design approach for a vibration isolator for use in space structures. The approach used can particularly be applicable for aerospace structures that support high precision instrumentation such as satellite payloads. The isolator is a space-frame structure that is folded in on itself to act as a mechanical filter over a defined frequency range. The absence of viscoelastic elements in such a mounting makes the design suitable for use in a vacuum and in high temperature or harsh environments with no risk of drift in alignment of the structure. The design uses a genetic algorithm based geometric optimisation routine to maximise passive vibration isolation, and this is hybridised with a geometric feasibility search. To complement the passive isolation system, an active system is incorporated in the design to add damping. Experimental work to validate the feasibility of the approach is also presented, with the active/passive structure achieving transmissibility of about 19 dB over a range of 1-250 Hz. It is shown here that the use of these novel anti-vibration mountings has no or little consequent weight and cost penalties whilst maintaining their effectiveness with the vibration levels. The approach should pave the way for the design of anti-vibration mountings that can be used between most pieces of equipment and their supporting structure. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.

A radiation hybrid map of river buffalo (Bubalus bubalis) chromosome 1 (BBU1)

The largest chromosome in the river buffalo karyotype, BBU1, is a submetacentric chromosome with reported homology between BBU1q and bovine chromosome 1 and between BBU1p and BTA27. We present the first radiation hybrid map of this chromosome containing 69 cattle derived markers including 48 coding genes, 17 microsatellites and four ESTs distributed in two linkage groups spanning a total length of 1330.1 cR(5000). The RH map was constructed based on analysis of a recently developed river buffalo-hamster whole genome radiation hybrid (BBURH5000) panel. The retention frequency of individual markers across the panel ranged from 17.8 to 52.2%. With few exceptions, the order of markers within linkage groups is identical to the order established for corresponding cattle RH maps. The BBU1 map provides a starting point for comparison of gene order rearrangements between river buffalo chromosome 1 and its bovine homologs. Copyright (C) 2007 S. Karger AG, Basel.

Construction of a river buffalo (Bubalus bubalis) whole-genome radiation hybrid panel and preliminary RH mapping of chromosomes 3 and 10

The buffalo (Bubalus bubalis) not only is a useful source of milk, it also provides meat and works as a natural source of labor and biogas. To establish a project for buffalo genome mapping a 5,000-rad whole genome radiation hybrid panel was constructed for river buffalo and used to build preliminary RH maps from two chromosomes (BBU 3 and BBU10). The preliminary maps contain 66 markers, including coding genes, cattle ESTs and microsatellite loci. The RH maps presented here are the starting point for mapping additional loci, in particular, genes and expressed sequence tags that will allow detailed comparative maps between buffalo, cattle and other species to be constructed. A large quantity of DNA has been prepared from the cell lines forming the RH panel reported here and will be made publicly available to the international community both for the study of chromosome evolution and for the improvement of traits important to the role of buffalo in animal agriculture.