Inclusão digital e integração social de idosos

Dissertação de mestrado em Comunicação, Arte e CulturaO presente projeto de investigação tem como objetivo compreender em que medida a Internet pode ser um meio para melhorar ou mesmo fomentar as relações sociais dos idosos diminuindo os casos de isolamento. Sendo hoje a Internet um meio de comunicação privilegiado, este estudo visa analisar as questões de género que sempre foram debatidas ao longo dos tempos e neste caso em concreto é importante saber se homens e mulheres têm formas e opiniões diferentes no que diz respeito à Internet. Fatores sociodemográficos como os níveis de escolaridade também são alvo de estudo com o objetivo de compreender se estes têm influência na aprendizagem dos idosos e no desenvolvimento das suas capacidades cognitivas. Culturalmente é relevante compreender se os Portugueses olham para a Internet como os restantes habitantes de vários países ditos do primeiro mundo. O estudo aborda a forma como os idosos comunicam e o que mudou na forma de comunicar daqueles que começaram a utilizar a Internet, deste modo podemos ficar com uma ideia do que mudou e das vantagens e desvantagens que a Internet veio trazer à forma como comunicam. Com base nas teorias da atividade e da desvinculação, vamos compreender melhor algum dos comportamentos dos idosos e na sua forma de agir perante vários temas da sociedade. Com o auxílio de um estudo realizado junto de Universidades seniores o presente projeto de investigação vai analisar junto de idosos que já utilizam a Internet e o que mudou nas suas vidas. Com este estudo podemos ver a forma como a Internet é vista e utilizada por estes idosos e ao mesmo tempo analisar as razões que levam muitos deles a terem um completo desinteresse por esta ferramenta. Em suma o objetivo central do presente estudo é compreender se ao utilizar a Internet os idosos poderão obter uma melhor integração social numa era onde esta faixa etária tem sido afetada pelo isolamento.This research project aims to understand the extent to which the Internet can be a means to improve or even foster social relationships of elderly cases decreasing isolation. And today the Internet a privileged means of communication, this study aims to examine gender issues have always been debated over time and in this particular case it is important to know whether men and women have different shapes and different opinions with regard to the Internet. Demographic factors such as education levels are also the target of study in order to understand if these have influence on learning of the elderly and the development of their cognitive abilities. Culturally it is important to understand the Portuguese look to the Internet as the remaining inhabitants of several countries said the first world. The study looks at how older people communicate and what has changed in the way we communicate those who started to use the Internet, so we can get an idea of what has changed and the advantages and disadvantages that the Internet has brought to the way they communicate. Based on the theories of activity and disengagement, we will better understand some of the behaviours of the elderly and their way of acting upon various topics of society. With the aid of a survey of senior Universities this research project will look at the elderly who use the Internet and what has changed in their lives. With this study we can see how the Internet is viewed and used by these elderly while analysing the reasons, which lead many of them to have a complete lack of interest in this tool. In short the main objective of this study is to understand when using the Internet the elderly can get a better social integration in an era where this age group has been affected by the isolation

Meningocele and Meningoencephalocele in Piglets: Pathologic and Imaging Aspects

Background: Meningocele and meningoencephalocele are rare congenital deformities characterized by herniation of the meninges and of the meninges and brain tissue through a bone defect in the skull (cranioschisis), respectively. Descriptions of these malformations in pigs are scarce in the international literature and non-existent in Brazil, with only one case of cranioschisis with brain exposure (without protrusion of the meninges and covered by skin) reported to date. Here, we report a case of meningocele and another of meningoencephalocele in piglets in the state of Bahia and describe the main related anatomopathological and imaging characteristics (radiographic and ultrasonographic).Case: The congenital malformations occurred in newborn piglets from a farm located in the city of Catu, Bahia, Brazil, which presented with an evident large saccular area positioned dorsally to the head. The animals died 48 h after birth and were referred to the Laboratory of Animal Pathology of the Federal University of Bahia, for the studies and diagnostic conclusion. Postmortem ultrasound examinations showed that the region was filled with fluid and associated with a small brain protrusion in case 1 and a defect in the skull bone, which had its orifice dimensions estimated. Despite the superimposition of structures, the skull malformation was identified on radiographic examination (case 1) and measured on ultrasonographic examination (cases 1 and 2). During necropsy, the piglets presented with a marked marked bulge of saccular appearance under the skin in the frontal region. The saccular formation was floating, internally covered by dura mater and filled with reddish serous liquid (liquor).Discussion: The diagnoses of meningoencephalocele and meningocele in newborn piglets were established based on morphological changes identified on ultrasound and necropsy. Although the ultrasound diagnosis of meningocele and meningoencephalocele are routinely made in human medicine, they are still limited in veterinary medicine in cases of malformations in production animals, with no case report in pigs. A Brazilian textbook on pig diseases cites these diseases among the main malformations that affect this species, although data on epidemiology and anatomopathological and imaging findings are not described, which highlights the importance of this study. As for the etiology of these malformations, the occurrence of two cases in piglets from the same farm in the present report may suggest the presence of genetic factors. The confirmation that inbreeding is common at farms where the cases occurred, and absence of herd renewal since 2014 (continuous use of the same breeders), reinforced this hypothesis, since inbreeding results in serious reproductive and productive disorders due to increased homozygosis and, consequently, due to the frequency of genotypes with recessive genes that cause various malformations in animals. This fact reinforces the need to make producers aware of the importance of avoiding inbreeding and the use of breeders that have generated malformed piglets to reduce the frequency of malformations. Additional studies on congenital malformations in pigs in Brazil are necessary because of the scarcity of existing data, particularly regarding the etiology and anatomopathological and imaging characteristics of these diseases

Peritoneopericardial Diaphragmatic Hernia in a Persian Cat

Background: Peritoneopericardial diaphragmatic hernia is a congenital defect characterized by an anomalous communication between the abdominal cavity and pericardial sac, which can lead to displacement of the abdominal viscera into the thoracic cavity. The occurrence in felines is higher among long-haired breeds, mainly the Persian breed, possibly based onan autosomal recessive inheritance. The diagnosis of PPDH is performed by means of chest radiography with or without contrast, in association with other imaging tests such as ultrasonography and echocardiography. Our objective in this study was to report the occurrence and macroscopic changes in a case of peritoneopericardial diaphragmatic hernia in a Persian feline. Case: A 9-year-old male Persian cat weighing 3.4 kg was referred to the HPET-Private Veterinary Clinic, Salvador, Bahia, with an history of weight loss and chronic intermittent vomiting during the preceding 6 months, with lateral decubitus and breathing difficulties. Ultrasonography revealed findings suggestive of an infiltrative process in the stomach and duodenum, enlarged gastric lymph nodes, and some nodular images indicating slight displacement of the liver. Chest radiography revealed a cardiac silhouette with markedly enlarged dimensions associated with a dorsal deviation of the terminal trachea, and echocardiography revealed a small amount of pericardial effusion. The patient showed initial clinical improvement after blood transfusion; however, after 2 days, he exhibited significant clinical worsening and was therefore euthanized with the owner's consent. Post mortem evaluation revealed partial herniation of the liver and gallbladder into the chest cavity through a diaphragmatic hernia ring. The heart was partially surrounded by the left medial lobe of the liver, which was displaced into the pericardial sac. Herniated hepatic lobes had an irregular capsular surface with evident lobulation and tension lipidosis. In the abdominal cavity, the remainder of the liver (right lateral and medial lobes) was observed to be slightly enlarged, with an irregular surface, diffusely reddish with intense evidence of the lobular pattern and white and firm multifocal areas (fibrosis). In the duodenum, close to the pylorus, there was a nodule measuring 2.8 x 2.5 x 1.0 cm, with a whitish and ulcerated surface. When cut, it was soft and exhibited a homogeneous, whitish compact surface.Histopathological examinationshowed marked proliferation of fibrous connective tissue, which for the most part separated the lobes by septa and surrounded the portal space (fibrosis), a marked diffuse chronic inflammatory infiltrate composed of lymphocytes and plasma cells. In addition, marked bile duct hyperplasia and multifocal areas of fatty degeneration (steatosis).Discussion: The diagnosis was based on the association of clinical and pathological findings. Considering the age and clinical signs presented by the patient in this report, as well as the presence of few radiographic signs that were indicative of PPDH, the first differential diagnosis thought was pericardial neoplasia. Peritoneopericardial diaphragmatic hernia in felines is always of congenital origin and may occur asymptomatically depending on the number and involvement of herniated viscera. In this case, the patient's diagnosis of peritoneopericardial hernia was a necropsy finding; the fact that in agreement with previous reports of high rates of incidental diagnoses reinforces the importance of performing necropsy for confirmation or diagnosis of unexpected pathologies. In the present case, peritoneopericardial diaphragmatic hernia in isolation may not have led to severe anemia that culminated in the patient's death. The anatomopathological findings were compatible with biliary cirrhosis and multifocal liver fibrosis, accompanied by the presence of anemia and consequent hypovolemia. Keywords: congenital diaphragmatic hernia, congenital abnormalities, cats. Título: Hérnia Diafragmática Peritoneopericárdica em um Felino da Raça PersaDescritores: hérnia diafragmática congênita, anomalias congênitas, felinos.

Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector

The observation of Higgs boson production in association with a top quark pair ( tt¯H ), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb −1 , and considering Higgs boson decays into bb¯ , WW⁎ , τ+τ− , γγ , and ZZ⁎ , the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the tt¯H searches using a dataset corresponding to integrated luminosities of 4.5 fb −1 at 7 TeV and 20.3 fb −1 at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total tt¯H production cross section at 13 TeV is measured to be 670 ± 90 (stat.) −100+110 (syst.) fb, in agreement with the Standard Model prediction.Peer Reviewe

Measurement of photon–jet transverse momentum correlations in 5.02 TeV Pb + Pb and pppp collisions with ATLAS

Jets created in association with a photon can be used as a calibrated probe to study energy loss in the medium created in nuclear collisions. Measurements of the transverse momentum balance between isolated photons and inclusive jets are presented using integrated luminosities of 0.49 nb$^{-1}$ of Pb+Pb collision data at $\sqrt{s_\mathrm{NN}}=5.02$ TeV and 25 pb$^{-1}$ of $pp$ collision data at $\sqrt{s}=5.02$ TeV recorded with the ATLAS detector at the LHC. Photons with transverse momentum $63.1 31.6$ GeV and pseudorapidity $\left|\eta^\mathrm{jet}\right| 7\pi/8$. Distributions of the per-photon jet yield as a function of $x_\mathrm{J\gamma}$, $(1/N_\gamma)(\mathrm{d}N/\mathrm{d}x_\mathrm{J\gamma})$, are corrected for detector effects via a two-dimensional unfolding procedure and reported at the particle level. In $pp$ collisions, the distributions are well described by Monte Carlo event generators. In Pb+Pb collisions, the $x_\mathrm{J\gamma}$ distribution is modified from that observed in $pp$ collisions with increasing centrality, consistent with the picture of parton energy loss in the hot nuclear medium. The data are compared with a suite of energy-loss models and calculations.Peer Reviewe

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

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

LEUCOSE JUVENIL MULTICÊNTRICA BOVINA - RELATO DE CASO

A leucose bovina é uma doença neoplásica de ocorrência mundial; a quase totalidade dos casos relatados na literatura refere-se à forma enzoótica. A forma esporádica da doença é rara e dificilmente ocorre mais de um caso por rebanho. Em maio de 2008 foi realizada a necropsia de uma bezerra da raça Nelore procedente do município de Quatis, RJ. O animal apresentava fraqueza, dificuldade de se manter em estação, relutância a movimentação, apatia, anorexia e depressão. Ao exame clínico, verificou-se palidez de mucosas e aumento de volume dos linfonodos superficiais de forma simétrica bilateral; à palpação estes eram firmes, indolores e sem sinais de inflamação. A evolução do quadro clínico foi de 12 dias e o animal foi eutanasiado in extremis. À necropsia observou-se aumento generalizado dos linfonodos superficiais e internos, a superfície de corte protraía e apresentava colorações variadas. À histopatologia dos linfonodos revelou linfócitos com citoplasma escasso, fracamente eosinofílico, com contornos irregulares e núcleos pleomórficos, por vezes, hipercromáticos com nucléolos evidentes e freqüentes figuras de mitoses. Havia alteração da arquitetura normal do linfonodo e ocasionais áreas de necrose. Adicionalmente foi observada infiltração maciça de células linfóides neoplásicas no fígado, rim, pulmão e baço. O diagnóstico da leucose esporádica juvenil foi baseado nos dados clínicoepidemiológicos e nas características macro e microscópicas