829 research outputs found
Risk, Harm and Intervention: the case of child obesity
In this paper we aim to demonstrate the enormous
ethical complexity that is prevalent in child obesity
cases. This complexity, we argue, favors a cautious
approach. Against those perhaps inclined to blame
neglectful parents, we argue that laying the blame for child
obesity at the feet of parents is simplistic once the broader
context is taken into account. We also show that parents
not only enjoy important relational prerogatives worth
defending, but that children, too, are beneficiaries of that
relationship in ways difficult to match elsewhere. Finally,
against the backdrop of growing public concern and pressure
to intervene earlier in the life cycle, we examine the
perhaps unintended stigmatizing effects that labeling and
intervention can have and consider a number of risks and
potential harms occasioned by state interventions in these
cases
An ancient pathway combining carbon dioxide fixation with the generation and utilization of a sodium ion gradient for ATP synthesis
Synthesis of acetate from carbon dioxide and molecular hydrogen is considered to be the first carbon assimilation pathway on earth. It combines carbon dioxide fixation into acetyl-CoA with the production of ATP via an energized cell membrane. How the pathway is coupled with the net synthesis of ATP has been an enigma. The anaerobic, acetogenic bacterium Acetobacterium woodii uses an ancient version of this pathway without cytochromes and quinones. It generates a sodium ion potential across the cell membrane by the sodium-motive ferredoxin:NAD oxidoreductase (Rnf). The genome sequence of A. woodii solves the enigma: it uncovers Rnf as the only ion-motive enzyme coupled to the pathway and unravels a metabolism designed to produce reduced ferredoxin and overcome energetic barriers by virtue of electron-bifurcating, soluble enzymes
Staphylococcus aureus isolates from Eurasian Beavers (Castor fiber) carry a novel phage-borne bicomponent leukocidin related to the Panton-Valentine leukocidin
Staphylococcus aureus can be a harmless coloniser, but it can also cause severe infections in humans, livestock and wildlife. Regarding the latter, only few studies have been performed and knowledge on virulence factors is insufficient. The aim of the present study was to study S. aureus isolates from deceased wild beavers (Castor fiber). Seventeen isolates from eleven beavers, found in Germany and Austria, were investigated. Antimicrobial and biocide susceptibility tests were performed. Isolates were characterised using S. aureus-specific DNA microarrays, spa typing and whole-genome sequencing. From two isolates, prophages were induced by mitomycin C and studied by transmission electron microscopy. Four isolates belonged to clonal complex (CC) 8, CC12, and CC398. Twelve isolates belonged to CC1956 and one isolate was CC49. The CC49 and CC1956 isolates carried distinct lukF/S genes related to the Panton-Valentine leukocidin (PVL) from human isolates of S. aureus. These genes were located on related, but not identical, Siphovirus prophages. The beavers, from which those isolates originated, suffered from abscesses, purulent organ lesions and necrotising pneumonia, i.e., clinical manifestations resembling symptoms of severe PVL-associated disease in humans. It might thus be assumed that the âBeaver Leukocidin (BVL, lukF/S-BV)â-positive strains are beaver-specific pathogens, and further studies on their clinical role as well as on a possible transmissibility to other species, including humans, are warranted
The EASLâ<em>Lancet</em> Commission on liver health in Europe: prevention, case-finding, and early diagnosis to reduce liver-related mortality
In December, 2021, the first report from the Lancet Commission on liver disease in Europe, a joint project with the European Association for the Study of the Liver (EASL), was published. 1 The Commission explored the harm to liver health in Europe that results from a combination of increasing obesity, the highest level of alcohol consumption in the world, and delays in viral hepatitis elimination. The Commission emphasised the importance of structural factors that drive risk behaviours and poor outcomes in liver disease, with disproportionate effects on disadvantaged and vulnerable populations. Such structural drivers include the heterogeneous landscape of alcohol policy in Europe, fragmented access to testing and therapy for viral hepatitis, and stigmatisation faced by individuals at risk of liver disease at the societal level and within health-care settings. 2 , 3 This stigma contributes to care avoidance and delayed diagnosis, ultimately leading to a bias in clinical pathways that prioritise managing advanced liver disease rather than early diagnosis and primary and secondary prevention of liver disease. The Commission report included ten recommendations to facilitate a shift towards health promotion, prevention, proactive case-finding, early identification of progressive liver fibrosis, and early management and treatment of liver diseases (figure). 1 The key message of the Commission was paraphrased by Ursula von der Leyen, the President of the European Commission, in her remarks made at the launch event: âin most cases, liver disease can be prevented. Prevention is the best cure that we have.
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Non-neutralizing Antibodies May Contribute to Suppression of SIVmac239 Viremia in Indian Rhesus Macaques
The antiviral properties of broadly neutralizing antibodies against HIV are well-documented but no vaccine is currently able to elicit protective titers of these responses in primates. While current vaccine modalities can readily induce non-neutralizing antibodies against simian immunodeficiency virus (SIV) and HIV, the ability of these responses to restrict lentivirus transmission and replication remains controversial. Here, we investigated the antiviral properties of non-neutralizing antibodies in a group of Indian rhesus macaques (RMs) that were vaccinated with vif, rev, tat, nef, and env, as part of a previous study conducted by our group. These animals manifested rapid and durable control of viral replication to below detection limits shortly after SIVmac239 infection. Although these animals had no serological neutralizing activity against SIVmac239 prior to infection, their pre-challenge titers of Env-binding antibodies correlated with control of viral replication. To assess the contribution of anti-Env humoral immune responses to virologic control in two of these animals, we transiently depleted their circulating antibodies via extracorporeal plasma immunoadsorption and inhibition of IgG recycling through antibody-mediated blockade of the neonatal Fc receptor. These procedures reduced Ig serum concentrations by up to 80% and temporarily induced SIVmac239 replication in these animals. Next, we transferred purified total Ig from the rapid controllers into six vaccinated RMs one day before intrarectal challenge with SIVmac239. Although recipients of the hyperimmune anti-SIV Ig fraction were not protected from infection, their peak and chronic phase viral loads were significantly lower than those in concurrent unvaccinated control animals. Together, our results suggest that non-neutralizing Abs may play a role in the suppression of SIVmac239 viremia
UPAYA MENINGKATKAN MOTIVASI BELAJAR SISWA MELALUI MEDIA GAME EDUCATION DALAM PEMBELAJARAN IPS DI MTs HASBUR RACHMAN ALIF DESA LENGKONG WETAN KABUPATEN MAJALENGKA
ASEP SAMSUL MA'ARIF :
Berdasarkan Observasiawal di kelas VII MTs Hasbur Rachman Alif terlihat
proses pembelajaran IPS masih menggunakan media spidol dan papan tulis. Sehingga
banyak siswa yang kurang memperhatikan guru pada saat proses pembelajaran., Hal
ini berakibat pada kejenuhan dan kebosanan yang berdampak pada hasil belajar siswa
yang kurang dari KKM yang diterapkan di MTs Hasbur Rachman Alif yakni 70.
Tujuan penelitian ini untuk mengetahui bagaimana penerapan pembelajaran
dengan menggunakan media Game Education pada mata pelajaran IPS Terpadu,
aktivitas siswa dan kinerja guru dengan pembelajaran dengan menggunakan media
Game Education, dan mengetahui motivasi belajar siswa sebelum dan setelah
diterapkannya pembelajaran dengan menggunakan media Game education pada mata
pelajaran IPS Terpadu di MTs Hasbur Rachman Alif.
Pembelajaran dengan menggunakan media Game Education menekankan
motivasi siswa untuk berpikir kritis dan menuangkan. Hal ini memudahkan siswa
untuk mengakses materi IPS yang banyak dimanapun, serta mempemudah daya
ingat siswa tentang apayatgtelah didapatkan selama proses pembelajaran.
Penelitian ini menggunakan Penelitian Tindakan Kelas (pTK) yang
dilaksanakan selama tiga siklus. Teknik Pengumpulan data menggunakan observasi,
tes, dan dokumentasi. Subjek penelitian ini adalah siswa kelas VII MTs Hasbur
Rachman Alif sebanyak 31 siswa yang terdiri dari 18 siswa laki-laki dan 13 siswa
perempuan.
Pembelajaran dengan menggunakan media Game Education dapat
meningkatkan motivasi belajar siswa hal ini terlihat dari hasil tes yang telah
dilakukan selama tiga siklus, dimana pada pratindakan (pretes) nilai sebesar 65,25
dan ketuntasan belajar 25 yo, siklus I nilai rata-rata sebesar 76,75 dan ketuntasan_
belajar siswa sebesar 65,5%o siklus II nilai rata-rata siswa 85,75 dan nilai ketuntasan
belajar sebesar 90% siklus III dengan nilai rata-rata 92,25 dan ketuntasan belajar
mengalami peningkatanya itu 97,5yo. Dengan demikian dapat disimpulkan bahwa
pembelajaran dengan menggunakan media Game Education merupakan salah satu
upaya untuk meningkatkan hasil belajar siswa pada mata pelajaran IPS Terpadu di
MTs Hasbur Rachman Alif.
Kata Kunci: Game Education, MotivasiBelajar, PTK
THE APPLICATION OF SPEED READING AT INTERMEDIATE LEVEL (A Case Study of Qualitative Research in One of Senior High School at Majalengka)
Muhammad Salim Pajri. 14111330143. THE APPLICATION OF SPEED READING AT INTERMEDIATE LEVEL (A Case Study of Qualitative Research in One of Senior High School at Majalengka)
Reading is the important things in education, because people can get knowledge and information from reading. Without reading people cannot absorb many sciences. Here, the researcher use speed reading technique as the tool of analyzing to know the learning and teaching process at intermediate level. Moreover, the aims of this research are (1). To know the teaching and learning process of speed reading. (2). To know studentsâ attitude towards teaching and learning speed reading. (3). To know overcome of the difficulties of speed reading. Theoretically, is regarding to the reading area, especially in the reading comprehension by using speed reading technique. Practically, the researcher will analyze of speed reading in one of Senior High School at Majalengka which has benefit for teacher to know studentsâ ability in school.
The research finding and discussion told about the teaching and learning process of speed reading at intermediate level. There are three activities of speed reading techniques. (1) Preparation Activity: teacher begins with greetings, deliver material and prepare students by warming up to focuss in learning process. (2) Core Activity: teacher teaches all the materials of speed reading. (3) Follow-up Activity: teacher gives exercise as the activity to know students score of speed reading test.
The result of the analysis shows there are 5 studentsâ attitude towards teaching and learning speed reading. then, the finding shows that (1). Studentsâ feeling towards teaching and learning using speed reading in general: students like speed reading then also comfortable. (2). Studentsâ feeling towards the process of teaching and learning speed reading: they get comprehension of this technique. (3). Studentsâ difficulties in learning using speed reading: there are unfamiliar word on athe text. (4). Studentsâ feeling towards their comprehension in learning using speed reading: they get purpose in speed reading learning. (5). Studentsâ motivation in learning using speed reading: they can read books in fast time.
It was found the overcome of difficulties of speed reading technique they are the process of the teaching speed reading and response the studentsâ response towards it, difficulties, disadvantages and teaching using speed reading technique and the result, usefulness, critics, and suggestions of teaching using speed reading technique.
From the research that has been done, it can be concluded that there is way to apply speed reading by using steps of speed reading. From this technique will increase studentsâ ability in reading process. It can help students to read fast and efficient time.
Keywords: Reading Comprehension, Speed Reading, Intermediate Leve
Study of J/Ď azimuthal anisotropy at forward rapidity in Pb-Pb collisions at âsNN=5.02 TeV
The second (v2) and third (v3) flow harmonic coefficients of J/Ď mesons are measured at forward rapidity (2.5 < y < 4.0) in Pb-Pb collisions at â sNN = 5.02 TeV with the ALICE detector at the LHC. Results are obtained with the scalar product method and reported as a function of transverse momentum, pT, for various collision centralities. A positive value of J/Ď v3 is observed with 3.7Ď significance. The measurements, compared to those of prompt D0 mesons and charged particles at mid-rapidity, indicate an ordering with vn(J/Ď) < vn(D0 ) < vn(hÂą) (n = 2, 3) at low and intermediate pT up to 6 GeV/c and a convergence with v2(J/Ď) â v2(D0 ) â v2(hÂą) at high pT above 6â8 GeV/c. In semicentral collisions (5â40% and 10â50% centrality intervals) at intermediate pT between 2 and 6 GeV/c, the ratio v3/v2 of J/Ď mesons is found to be significantly lower (4.6Ď) with respect to that of charged particles. In addition, the comparison to the prompt D0 -meson ratio in the same pT interval suggests an ordering similar to that of the v2 and v3 coefficients. The J/Ď v2 coefficient is further studied using the Event Shape Engineering technique. The obtained results are found to be compatible with the expected variations of the eccentricity of the initial-state geometry.publishedVersio
Measurement of isolated photon-hadron correlations in âsNN = 5.02 TeV pp and p-Pb collisions
This paper presents isolated photon-hadron correlations using pp and p-Pb data collected by the ALICE detector at the LHC. For photons with |Ρ|<0.67 and 12<pT<40 GeV/c, the associated yield of charged particles in the range |Ρ|<0.80 and 0.5<pT<10 GeV/c is presented. These momenta are much lower than previous measurements at the LHC. No significant difference between pp and p-Pb is observed, with Pythia 8.2 describing both data sets within uncertainties. This measurement constrains nuclear effects on the parton fragmentation in p-Pb collisions, and provides a benchmark for future studies of Pb-Pb collisions.publishedVersio
Constraining the Chiral Magnetic Effect with charge-dependent azimuthal correlations in Pb-Pb collisions at = 2.76 and 5.02 TeV
Systematic studies of charge-dependent two- and three-particle correlations in Pb-Pb collisions at = 2.76 and 5.02 TeV used to probe the Chiral Magnetic Effect (CME) are presented. These measurements are performed for charged particles in the pseudorapidity (Ρ) and transverse momentum (pT) ranges |Ρ| < 0.8 and 0.2 < pT < 5 GeV/c. A significant charge-dependent signal that becomes more pronounced for peripheral collisions is reported for the CME-sensitive correlators Îł1, 1â=âăcos(ĎÎąâ+âĎβâââ2Ψ2)ă and Îł1,âââ3â=âăcos(ĎÎąâââ3Ďβâ+â2Ψ2)ă. The results are used to estimate the contribution of background effects, associated with local charge conservation coupled to anisotropic flow modulations, to measurements of the CME. A blast-wave parametrisation that incorporates local charge conservation tuned to reproduce the centrality dependent background effects is not able to fully describe the measured Îł1,1. Finally, the charge and centrality dependence of mixed-harmonics three-particle correlations, of the form Îł1, 2â=âăcos(ĎÎąâ+â2Ďβâââ3Ψ3)ă, which are insensitive to the CME signal, verify again that background contributions dominate the measurement of Îł1,1.publishedVersio
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