Avaliação das condições das instalações elétricas em canteiros de obras residenciais: Uma análise à luz da Norma Regulamentadora n.º 18

Temporary electrical installations at construction sites can cause accidents by electric shock, harming workers, families, and society. This work aims to evaluate the requirements of temporary electrical installations within the construction sites of high-end residential buildings in Cuiabá-MT concerning meeting the requirements of Regulatory Norm n. º 18. Was A form with 30 items was prepared based on NR 18, NR 10, ABNT NBR 5410 and ABNT NBR 5419 and applied to nine selected construction sites, inspected in loco, and interviewed to gather information with those responsible for the executions. It was observed that 100% of the construction sites had the electrical installation project for the electrical installations of the building to be built. However, no work was found on the project of temporary electrical installations for the execution of the construction site. Through visual inspection and photographic records, it was found that the temporary facilities are mostly precarious, putting the safety of workers at risk daily. Among the nine works verified, the best result was with 16 items in compliance among the 30 investigated.Las instalaciones eléctricas temporales en las obras de construcción pueden provocar accidentes por descarga eléctrica, perjudicando a los trabajadores, las familias y la sociedad en general. Este trabajo tiene como objetivo evaluar el cumplimiento de los requisitos de las instalaciones eléctricas temporales dentro de las obras de construcción de edificios residenciales de alta gama en la ciudad de Cuiabá-MT, en relación con el cumplimiento de los requisitos de la Norma Reglamentaria n.º 18. Para eso, Fue elaborado un formulario con 30 ítems con base en la NR 18, NR 10, ABNT NBR 5410 y ABNT NBR 5419, y aplicado en nueve obras seleccionadas, siendo inspeccionadas in loco y entrevistas para levantamiento de información con los responsables de las ejecuciones. Se observó que el 100% de las obras contaban con el proyecto de instalación eléctrica para las instalaciones eléctricas del edificio a construir. Sin embargo, en ninguna obra se encontró el proyecto de instalaciones eléctricas temporales, para la ejecución de la obra. Mediante inspección visual y registros fotográficos se encontró que las instalaciones temporales en su mayoría son precarias, poniendo en riesgo la seguridad de los trabajadores en el día a día. Entre los nueve trabajos verificados, el mejor resultado fue con 16 ítems conformes entre los 30 investigados.As instalações elétricas provisórias em canteiros de obras podem causar acidentes por choque elétrico, prejudicando trabalhadores, famílias e sociedade em geral. Este trabalho tem por objetivo avaliar o cumprimento dos requisitos das instalações elétricas provisórias dentro de canteiros de obras de edificações residências de alto padrão na cidade de Cuiabá-MT, em relação ao atendimento dos requisitos da Norma Regulamentadora n.º 18. Para tanto, foi elaborado um formulário com 30 itens baseados na NR 18, NR 10, ABNT NBR 5410 e ABNT NBR 5419, e aplicado em nove canteiros de obras selecionados, sendo inspecionados in loco e entrevistas para levantamento de informações com os responsáveis pelas execuções. Observou-se que 100% das obras possuíam o projeto de instalação elétrica para as instalações elétricas da edificação a ser construída. Entretanto, em nenhuma obra foi encontrado o projeto de instalações elétricas provisórias, para a execução do canteiro de obras. Por meio da inspeção visual e registro fotográfico constatou-se que as instalações provisórias estão em sua grande maioria precárias, colocando em risco diariamente a segurança dos trabalhadores. Dentre as nove obras verificadas, o melhor resultado foi com 16 itens em conformidade dentre os 30 investigados

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear un derstanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5–7 vast areas of the tropics remain understudied.8–11 In the American tropics, Amazonia stands out as the world’s most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepre sented in biodiversity databases.13–15 To worsen this situation, human-induced modifications16,17 may elim inate pieces of the Amazon’s biodiversity puzzle before we can use them to understand how ecological com munities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple or ganism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region’s vulnerability to environmental change. 15%–18% of the most ne glected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lostinfo:eu-repo/semantics/publishedVersio

Pervasive gaps in Amazonian ecological research

Biodiversity loss is one of the main challenges of our time,1,2 and attempts to address it require a clear understanding of how ecological communities respond to environmental change across time and space.3,4 While the increasing availability of global databases on ecological communities has advanced our knowledge of biodiversity sensitivity to environmental changes,5,6,7 vast areas of the tropics remain understudied.8,9,10,11 In the American tropics, Amazonia stands out as the world's most diverse rainforest and the primary source of Neotropical biodiversity,12 but it remains among the least known forests in America and is often underrepresented in biodiversity databases.13,14,15 To worsen this situation, human-induced modifications16,17 may eliminate pieces of the Amazon's biodiversity puzzle before we can use them to understand how ecological communities are responding. To increase generalization and applicability of biodiversity knowledge,18,19 it is thus crucial to reduce biases in ecological research, particularly in regions projected to face the most pronounced environmental changes. We integrate ecological community metadata of 7,694 sampling sites for multiple organism groups in a machine learning model framework to map the research probability across the Brazilian Amazonia, while identifying the region's vulnerability to environmental change. 15%–18% of the most neglected areas in ecological research are expected to experience severe climate or land use changes by 2050. This means that unless we take immediate action, we will not be able to establish their current status, much less monitor how it is changing and what is being lost

Effects of Maternal Protein Supplementation at Mid-Gestation of Cows on Intake, Digestibility, and Feeding Behavior of the Offspring

This study aimed to assess the effects of maternal protein supplementation and offspring sex (OS) on the intake parameters of the offspring. Forty-three Tabapuã cows were randomly allocated in the following treatments: protein supplementation (PS) during days 100–200 of gestation (RES, 5.5% total crude protein (CP), n = 2, or CON, 10% total CP, n = 19) and OS (females, n = 20; males, n = 23). The offspring were evaluated during the cow–calf (0–210 days), backgrounding (255–320 days), growing 1 (321–381 days), and growing 2 (382–445 days) phases. The CON offspring tended to present higher dry matter intake (DMI) at weaning (p = 0.06). The CON males presented lower digestibility of major diet components in the growing 2 phase (p ≤ 0.02). The CON offspring spent 52% more time per day eating supplements at 100 days and 17% less time in idleness at 210 days. The CON males spent 15 min more per day ruminating than RES males in the feedlot phase (p = 0.01). We concluded that protein supplementation over gestation alters the offspring feed intake pattern as a whole, while protein restriction promotes compensatory responses on nutrient digestibility in males

NEOTROPICAL ALIEN MAMMALS: a data set of occurrence and abundance of alien mammals in the Neotropics

Biological invasion is one of the main threats to native biodiversity. For a species to become invasive, it must be voluntarily or involuntarily introduced by humans into a nonnative habitat. Mammals were among first taxa to be introduced worldwide for game, meat, and labor, yet the number of species introduced in the Neotropics remains unknown. In this data set, we make available occurrence and abundance data on mammal species that (1) transposed a geographical barrier and (2) were voluntarily or involuntarily introduced by humans into the Neotropics. Our data set is composed of 73,738 historical and current georeferenced records on alien mammal species of which around 96% correspond to occurrence data on 77 species belonging to eight orders and 26 families. Data cover 26 continental countries in the Neotropics, ranging from Mexico and its frontier regions (southern Florida and coastal-central Florida in the southeast United States) to Argentina, Paraguay, Chile, and Uruguay, and the 13 countries of Caribbean islands. Our data set also includes neotropical species (e.g., Callithrix sp., Myocastor coypus, Nasua nasua) considered alien in particular areas of Neotropics. The most numerous species in terms of records are from Bos sp. (n = 37,782), Sus scrofa (n = 6,730), and Canis familiaris (n = 10,084); 17 species were represented by only one record (e.g., Syncerus caffer, Cervus timorensis, Cervus unicolor, Canis latrans). Primates have the highest number of species in the data set (n = 20 species), partly because of uncertainties regarding taxonomic identification of the genera Callithrix, which includes the species Callithrix aurita, Callithrix flaviceps, Callithrix geoffroyi, Callithrix jacchus, Callithrix kuhlii, Callithrix penicillata, and their hybrids. This unique data set will be a valuable source of information on invasion risk assessments, biodiversity redistribution and conservation-related research. There are no copyright restrictions. Please cite this data paper when using the data in publications. We also request that researchers and teachers inform us on how they are using the data

NEOTROPICAL CARNIVORES: a data set on carnivore distribution in the Neotropics

Mammalian carnivores are considered a key group in maintaining ecological health and can indicate potential ecological integrity in landscapes where they occur. Carnivores also hold high conservation value and their habitat requirements can guide management and conservation plans. The order Carnivora has 84 species from 8 families in the Neotropical region: Canidae; Felidae; Mephitidae; Mustelidae; Otariidae; Phocidae; Procyonidae; and Ursidae. Herein, we include published and unpublished data on native terrestrial Neotropical carnivores (Canidae; Felidae; Mephitidae; Mustelidae; Procyonidae; and Ursidae). NEOTROPICAL CARNIVORES is a publicly available data set that includes 99,605 data entries from 35,511 unique georeferenced coordinates. Detection/non-detection and quantitative data were obtained from 1818 to 2018 by researchers, governmental agencies, non-governmental organizations, and private consultants. Data were collected using several methods including camera trapping, museum collections, roadkill, line transect, and opportunistic records. Literature (peer-reviewed and grey literature) from Portuguese, Spanish and English were incorporated in this compilation. Most of the data set consists of detection data entries (n = 79,343; 79.7%) but also includes non-detection data (n = 20,262; 20.3%). Of those, 43.3% also include count data (n = 43,151). The information available in NEOTROPICAL CARNIVORES will contribute to macroecological, ecological, and conservation questions in multiple spatio-temporal perspectives. As carnivores play key roles in trophic interactions, a better understanding of their distribution and habitat requirements are essential to establish conservation management plans and safeguard the future ecological health of Neotropical ecosystems. Our data paper, combined with other large-scale data sets, has great potential to clarify species distribution and related ecological processes within the Neotropics. There are no copyright restrictions and no restriction for using data from this data paper, as long as the data paper is cited as the source of the information used. We also request that users inform us of how they intend to use the data