Diatomees centriques de la lagune de Fresco Cote d’Ivoire

Un inventaire taxinomique des Diatomées centriques de la Lagune de Fresco a été réalisé de Mars 2007 à Décembre 2008, dans le but de contribuer à la connaissance de la microflore diatomique de Côte d’Ivoire. Des prélèvements ont été effectués dans 5 stations à l’aide d’un filet à plancton. Au total 40 taxons répartis en 20 genres, 12 familles, 9 ordres et 1 classe ont été identifiés avec une prédominance des taxons du genre Chaetoceros (10 taxons). La majorité des taxons (36) sont d’origine marine. Huit nouveaux taxons sont signalés pour la première fois en Côte d’Ivoire. Il s’agit des espèces Coscinodiscus marginatus, Triceratium pentacrinus, Biddulphia alternans, Terpsinoe intermedia, Chaetoceros diversus, C. pseudocrinutus, C. similis et C. subtilis.Mots clés : Diatomées centriques, Microalgue, Lagune de Fresco, Côte d’Ivoir

Comportamento de pastoreio

O pastoreio é uma atividade de natureza biológica que envolve interações evolutivas entre planta, animal e ambiente. Está cercado por vários fatores, com diferentes níveis ou intensidades, capazes de originar diferentes graus de alterações e de complexidade

Dark photon bounds in the dark EFT

Dark photons are massive abelian gauge bosons that interact with ordinary photons via a kinetic mixing with the hypercharge field strength tensor. This theory is probed by a variety of different experiments and limits are set on a combination of the dark photon mass and kinetic mixing parameter. These limits can however be strongly modified by the presence of additional heavy degrees of freedom. Using the framework of dark effective field theory, we study how robust are the current experimental bounds when these new states are present. We focus in particular on the possible existence of a dark dipole interaction between the Standard Model leptons and the dark photon. We show that, under certain assumptions, the presence of a dark dipole modifies existing supernovae bounds for cut-off scales up to O(10-100 TeV). On the other hand, terrestrial experiments, such as LSND and E137, can probe cut-off scales up to O(3 TeV). For the latter experiment we highlight that the bound may extend down to vanishing kinetic mixing

Adapting the SHEL model in investigating industrial maintenance

Purpose – The purpose of this paper is to identify and categorize problems in knowledge management of industrial maintenance, and support successful maintenance through adapting the SHEL model. The SHEL model has been used widely in airplane accident investigations and in aviation maintenance, but not in industrial maintenance. Design/methodology/approach – The data was collected by two separate surveys with open-ended questions from maintenance customers and service providers in Finland. The collected data was coded according to SHEL model -derived themes and analysed thematically with NVivo. Findings – The authors found that the adapted SHELO model works well in the industrial maintenance context. The results show that the most important knowledge management problems in the area are caused by interactions between Liveware and Software (information unavailability), Liveware and Liveware (information sharing), Liveware and Organisation (communication), and Software and Software (information integrity). Research limitations/implications – The data was collected only from Finnish companies and from the perspective of knowledge management. In practice there are also other kinds of issues in industrial maintenance. This can be a topic for future research. Practical implications – The paper presents a new systematic method to analyse and sort knowledge management problems in industrial maintenance. Both maintenance service customers and suppliers can improve their maintenance processes by using the dimensions of the SHELO model. Originality/value – The SHEL model has not been used in industrial maintenance before. In addition, the new SHELO model takes also interactions without direct human influence into account. Previous research has listed conditions for successful maintenance extensively, but this kind of prioritization tools are needed to support decision making in practice

Latent profile analysis as a method for process evaluations : Discovering response subgroups in a mindfulness intervention

Rationale. Clustering techniques have been used within intervention studies to locate any distinct subgroups among intervention participants. One way in which they have not yet been utilized, but for which there is potential benefit, is in finding different motivational and behavioral response types to a newly introduced behavior. Objective This study aimed to use latent profile analyses (the same as latent class analyses except with continuous indicator variables) to identify 1) types, or classes, in terms of social cognitive responses to a mindfulness intervention, using The Reasoned Action Approach constructs, and 2) longitudinal/change trajectory classes of the target behavior (i.e., mindfulness practice). Methods The data derived from a school-based mindfulness intervention (N = 1646) among 12-15 year-olds, conducted in southern Finland from 2014 to 2016. We explored associations between the identified classes and with gender, linguocultural group, and mental health and practice outcomes. Results Analyses indicated a solution of five latent classes for both social cognition post-intervention—Uncertain but Positive (40.2%), Acceptable but No (18.8%), Indifferent (16.8), Inclined (15.5%), Disinclined (8.6%)—and practice trajectories—Stable Low (52.1%), Decreased from Seldom (25.8%), Decreased from Sometimes (10.7%), Increased from Zero (6.8%), Increased from Seldom (4.6%). The strongest differentiating theoretical construct among the social cognitive classes was a descriptive norm. The classes were characterized by some associations between each other (e.g., “Acceptable but No” and “Stable Low”) and with linguocultural groups (e.g., “Inclined” and small language minorities) and mental health (e.g., “Disinclined” and externalization and depressive symptoms), but no specific associations were found by gender. Conclusions This study shows how more person-centered analyses can be utilized in process evaluations, which predominantly only make use of variable-centered analyses. This knowledge could suggest ways to tailor universal interventions for subgroups with different receipt profiles and thereby improve intervention acceptability and engagement.Peer reviewe

Cannabinoid Receptor Type 1 in Parkinson's Disease : A Positron Emission Tomography Study with [F-18]FMPEP-d(2)

Background The endocannabinoid system is a widespread neuromodulatory system affecting several biological functions and processes. High densities of type 1 cannabinoid (CB1) receptors and endocannabinoids are found in basal ganglia, which makes them an interesting target group for drug development in basal ganglia disorders such as Parkinson's disease (PD). Objective The aim of this study was to investigate CB1 receptors in PD with [F-18]FMPEP-d(2) positron emission tomography (PET) and the effect of dopaminergic medication on the [F-18]FMPEP-d(2) binding. Methods The data consisted of 16 subjects with PD and 10 healthy control subjects (HCs). All participants underwent a [F-18]FMPEP-d(2) high-resolution research tomograph PET examination for the quantitative assessment of cerebral binding to CB1 receptors. To investigate the effect of dopaminergic medication on the [F-18]FMPEP-d(2) binding, 15 subjects with PD underwent [F-18]FMPEP-d(2) PET twice, both on and off antiparkinsonian medication. Results [F-18]FMPEP-d(2) distribution volume was significantly lower in the off scan compared with the on scan in basal ganglia, thalamus, hippocampus, and amygdala (P < 0.05). Distribution volume was lower in subjects with PD off than in HCs globally (P < 0.05), but not higher than in HCs in any brain region. Conclusions Subjects with PD have lower CB1 receptor availability compared with HCs. PD medication increases CB1 receptor toward normal levels. (c) 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder SocietyPeer reviewe

Criminalidade organizada nas prisões e os ataques do PCC

The advent of organized crime in Brazilian prisons, especially in the state of São Paulo, constitutes the object of this article. The waves of attack unleashed by the Capital's First Command (PCC - Primeiro Comando da Capital), in May 2006, which resulted in countless deaths, brought cities to a halt, and cornered authorities in charge preventing them from applying law and order are the starting as well as reference points taken. The advent of organized criminality is analyzed under the light of determined axes: the international scenario and the Brazilian context, the historical antecedents, the taking root of crime in society and the role of penitentiary public policies.A emergência da criminalidade organizada nas prisões brasileiras, em especial no Estado de São Paulo, constitui objeto deste artigo. Tomam-se como ponto de partida e referência para análise as ondas de ataques desencadeadas pelo Primeiro Comando da Capital (PCC), de maio a agosto de 2006, que resultaram em inúmeros mortos, paralisaram cidades e acuaram as autoridades encarregadas de aplicar lei e ordem. A emergência da criminalidade organizada é analisada sob eixos determinados: cenário internacional e contexto brasileiro, antecedentes históricos, enraizamento do crime na sociedade e papel das políticas públicas penitenciárias