APRENDER OU EMPREENDER? OS DEBATES DO NOVO ENSINO MÉDIO

The article proposes a reflection on the “New” High School (NEM) established by Law 13.415/2017, analyzing the type of rationality that presides over it and the groups that act in its political support. The first neoliberal reform aimed at mass secondary education was carried out in 1998, and has already announced several elements taken up and deepened in the 2017 reform, such as the competence-based curriculum, areas of knowledge and curriculum flexibility. Neoliberal reforms do not expand access to national secondary education, but seek to impose a new type of control over already established supply and demand, remodeling them from a managerial rationality, with emphasis on the deregulation of the curriculum and the right to education. We use Sennet (1997) and Chamayou (2020) as a theoretical framework to suggest possible analogies between the practice of continuous restructuring in capitalist organizations and reformist agendas in education, and Fontes (2017) to analyze the cross-party character of the programmatic agenda of High School Reform in Brazil. In fact, the NEM has indelibly survived four national governments of very different political shades, revealing a new cross-party programmatic domination, since the educational agendas appear as the result of a very powerful consensual concertation, which overflows from companies to political representatives in the legislative, executive, judiciary, in educational management in municipalities, states and the Union, in public councils, NGO´s and associations. This consensus from above has not, however, prevented criticism and contrary public demonstrations that claim the repeal of the High School Reform, carried out by the subjects that constitute the basis of the school system: students, teachers, unions, researchers, faculties of education and research groups.                                     O artigo propõe uma reflexão a respeito do “Novo” Ensino Médio (NEM) instituído pela Lei 13.415/2017, analisando o tipo de racionalidade que o preside e os grupos que atuam na sua sustentação política. A primeira reforma neoliberal dirigida ao ensino médio de massas foi realizada em 1998, e já anunciou diversos elementos retomados e aprofundados na reforma de 2017, como o currículo por competências, as áreas de conhecimentos e a flexibilização curricular. As reformas neoliberais não ampliam o acesso ao ensino médio nacional, mas buscam imprimir um novo tipo de controle da oferta e da demanda já estabelecidas, remodelando-as a partir de uma racionalidade gerencial, com ênfase na desregulamentação do currículo e do direito à educação. Utilizamos como referencial teórico Sennet (1997) e Chamayu (2020) para sugerir possíveis analogias entre a prática de reestruturação contínua nas organizações capitalistas e as agendas reformistas em educação, e Fontes (2017) para analisar o caráter transpartidário da agenda programática da Reforma do Ensino Médio no Brasil. De fato, o NEM tem sobrevivido indelével a quatro governos nacionais de matizes políticas muito distintas revelando uma nova dominação programática transpartidária, uma vez que as agendas educacionais aparecem como resultado de uma concertação consensual muito poderosa, que transborda das empresas para os representantes políticos no legislativo, executivo, judiciário, na gestão educacional nos municípios, estados e União, nos conselhos públicos, ONG´s e associações. Este consenso por cima não tem impedido, entretanto, as críticas e manifestações públicas contrárias que reivindicam a revogação da reforma do Ensino Médio, protagonizadas pelos sujeitos que constituem a base do sistema escolar: estudantes, professores, sindicatos, pesquisadores, faculdades de educação e grupos de pesquisa. &nbsp

O caráter performativo das ocupações estudantis

The article analyzes the high school student occupations of schools that occurred in 2015 in the state of São Paulo, as a reaction to the school reorganization proposal that aimed to close 94 schools and the compulsory transfer of 311 thousand students and 74 thousand teachers. A bibliographic research and a theoretical analysis of the occupations was carried out, highlighting their performative dimension.. This key of analysis is supported by authors such as Ernesto Laclau, Chantal Mouffe and Judith Butler, who emphasize the relational and contingent character of identities, and the importance of the body in the current grammar of social conflicts. The conclusions indicate that the school occupation movement was a performative act in three dimensions: in the emergence of the subjects (the high school student identity that emerged with the occupation); in the way of presenting some educational demands (the production of new scholar practices that materialized the desired changes); in the inversion of administrative subjection by the creation of another visible, vibrant and active “student body”. The occupation movement went beyond the traditional and established channels of demand foreseen by representative democracy, becoming a disruptive movement, with a strong transgressive content in relation to the instituted powers and, therefore, triggered strong repression by the State. At the same time, they configured spaces for the production of new forms of education and school life with more freedom, autonomy and meaning, embodying criticisms that young people have been making for many years regarding public policies and the models of schooling that are offered to them.O artigo analisa as ocupações secundaristas que ocorreram no ano de 2015 no estado de São Paulo, como reação à proposta de reorganização escolar que previa o fechamento de 94 escolas e a transferência compulsória de 311 mil alunos e 74 mil professores. Foi realizada uma pesquisa bibliográfica e uma análise teórica das ocupações destacando sua dimensão performativa. Esta chave de análise é sustentada a partir de autores como Ernesto Laclau, Chantal Mouffe e Judith Butler, que enfatizam o caráter relacional e contingente das identidades, e a importância do corpo na gramática atual dos conflitos sociais. As conclusões indicam que as ocupações dos secundaristas foram atos performativos em três dimensões: na emergência dos sujeitos (a identidade secundarista que emergiu com a ocupação); no modo de apresentar algumas demandas educacionais (a produção de novas práticas escolares que materializavam as mudanças desejadas); na inversão do assujeitamento administrativo pela criação de  outro “corpo estudantil” visível, vibrante e atuante. As ocupações extravasaram os canais tradicionais e consagrados de reivindicação previstos pela democracia representativa, tornando-se um movimento disruptivo, com forte teor transgressivo dos poderes instituídos e que, por isso, desencadearam forte repressão por parte do Estado. Ao mesmo tempo, foram espaços de produção de novas formas de educação e de uma vida escolar com mais liberdade, autonomia e sentido, corporificando críticas que os jovens vêm fazendo há muitos anos a respeito das políticas públicas e dos modelos de escolarização que lhes são oferecidos

Helicobacter pylori and corpus gastric pathology are associated with lower serum ghrelin

AIM To evaluate the association of Helicobacter pylori (H. pylori ), cagA genotype, and type of gastric pathology with ghrelin, leptin and nutritional status. METHODS Fasted dyspeptic adults (18-70 years) referred for an upper digestive endoscopy were enrolled in this crosssectional study. Height and weight were assessed for body mass index (BMI) calculation. A sociodemographic survey was administered and nutrient intake was evaluated with 24 h dietary recalls. Serum total ghrelin and leptin levels were analyzed by enzymelinked immunosorbent assay. 13 C-Urea Breath Test was performed and four gastric biopsies were obtained during endoscopy for histopathology and H. pylori DNA amplification and genotyping. Data analysis was performed using X 2 , Mann-Whitney U , Kruskal-Wallis tests, Spearman´s correlation and linear regression. RESULTS one hundred and sixty-Three patients (40.8 ± 14.0 years), 98/65 females/males, were included. Overall, persistent H. pylori prevalence was 53.4% (95%CI: 45.7%-65.8%). Neither nutrient intake nor BMI differed significantly between H. pylori positive and negative groups. Serum ghrelin was significantly lower in infected patients [median 311.0 pg/mL (IQR 230.0-385.5)] than in uninfected ones [median 355.0 pg/mL (IQR 253.8-547.8)] (P = 0.025), even after adjusting for BMI and gender (P = 0.03). Ghrelin levels tended to be lower in patients carrying cagA positive strains both in the antrum and the corpus; however, differences with those carrying cagA negative strains did not reach statistical significance (P = 0.50 and P = 0.49, respectively). In addition, the type and severity of gastric pathology in the corpus was associated with lower serum ghrelin (P = 0.04), independently of H. pylori status. Conversely, leptin levels did not differ significantly between infected and uninfected patients [median 1.84 ng/mL (0.80-4.85) vs 1.84 ng/mL (0.50-5.09), (P = 0.51)]. CONCLUSION H. pylori infection and severity of gastric corpus pathology are associated with lower serum ghrelin. Further studies could confirm a lower ghrelin prevalence in cagA-positive patients.Fil: Mantero, Paula. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Fisicomatemática. Cátedra de Física; ArgentinaFil: Matus, Gonzalo Sebastián. Gobierno de la Ciudad de Buenos Aires. Hospital de Gastroenterología "Dr. Carlos B. Udaondo"; ArgentinaFil: Corti, Rodolfo Ernesto. Gobierno de la Ciudad de Buenos Aires. Hospital de Gastroenterología "Dr. Carlos B. Udaondo"; ArgentinaFil: Cabanne, Ana María. Gobierno de la Ciudad de Buenos Aires. Hospital de Gastroenterología "Dr. Carlos B. Udaondo"; ArgentinaFil: Zerbetto de Palma, Gerardo Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Investigaciones en Microbiología y Parasitología Médica. Universidad de Buenos Aires. Facultad de Medicina. Instituto de Investigaciones en Microbiología y Parasitología Médica; ArgentinaFil: Marchesi Olid, Liliana Soledad. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Medicina. Escuela de Nutrición; ArgentinaFil: Piskorz, María Marta. Universidad de Buenos Aires. Facultad de Medicina. Hospital de Clínicas General San Martín; ArgentinaFil: Zubillaga, Marcela Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Janjetic, Mariana Andrea. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; ArgentinaFil: Goldman, Cinthia Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica; Argentin

Les droits disciplinaires des fonctions publiques : « unification », « harmonisation » ou « distanciation ». A propos de la loi du 26 avril 2016 relative à la déontologie et aux droits et obligations des fonctionnaires

The production of tt‾ , W+bb‾ and W+cc‾ is studied in the forward region of proton–proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98±0.02 fb−1 . The W bosons are reconstructed in the decays W→ℓν , where ℓ denotes muon or electron, while the b and c quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions.The production of $t\overline{t}$, $W+b\overline{b}$ and $W+c\overline{c}$ is studied in the forward region of proton-proton collisions collected at a centre-of-mass energy of 8 TeV by the LHCb experiment, corresponding to an integrated luminosity of 1.98 $\pm$ 0.02 \mbox{fb}^{-1}. The $W$ bosons are reconstructed in the decays $W\rightarrow\ell\nu$, where $\ell$ denotes muon or electron, while the $b$ and $c$ quarks are reconstructed as jets. All measured cross-sections are in agreement with next-to-leading-order Standard Model predictions

Physics case for an LHCb Upgrade II - Opportunities in flavour physics, and beyond, in the HL-LHC era

The LHCb Upgrade II will fully exploit the flavour-physics opportunities of the HL-LHC, and study additional physics topics that take advantage of the forward acceptance of the LHCb spectrometer. The LHCb Upgrade I will begin operation in 2020. Consolidation will occur, and modest enhancements of the Upgrade I detector will be installed, in Long Shutdown 3 of the LHC (2025) and these are discussed here. The main Upgrade II detector will be installed in long shutdown 4 of the LHC (2030) and will build on the strengths of the current LHCb experiment and the Upgrade I. It will operate at a luminosity up to 2×1034 cm−2s−1, ten times that of the Upgrade I detector. New detector components will improve the intrinsic performance of the experiment in certain key areas. An Expression Of Interest proposing Upgrade II was submitted in February 2017. The physics case for the Upgrade II is presented here in more depth. CP-violating phases will be measured with precisions unattainable at any other envisaged facility. The experiment will probe b → sl+l−and b → dl+l− transitions in both muon and electron decays in modes not accessible at Upgrade I. Minimal flavour violation will be tested with a precision measurement of the ratio of B(B0 → μ+μ−)/B(Bs → μ+μ−). Probing charm CP violation at the 10−5 level may result in its long sought discovery. Major advances in hadron spectroscopy will be possible, which will be powerful probes of low energy QCD. Upgrade II potentially will have the highest sensitivity of all the LHC experiments on the Higgs to charm-quark couplings. Generically, the new physics mass scale probed, for fixed couplings, will almost double compared with the pre-HL-LHC era; this extended reach for flavour physics is similar to that which would be achieved by the HE-LHC proposal for the energy frontier

LHCb upgrade software and computing : technical design report

This document reports the Research and Development activities that are carried out in the software and computing domains in view of the upgrade of the LHCb experiment. The implementation of a full software trigger implies major changes in the core software framework, in the event data model, and in the reconstruction algorithms. The increase of the data volumes for both real and simulated datasets requires a corresponding scaling of the distributed computing infrastructure. An implementation plan in both domains is presented, together with a risk assessment analysis

Multidifferential study of identified charged hadron distributions in ZZ-tagged jets in proton-proton collisions at s=\sqrt{s}=13 TeV

Jet fragmentation functions are measured for the first time in proton-proton collisions for charged pions, kaons, and protons within jets recoiling against a $Z$ boson. The charged-hadron distributions are studied longitudinally and transversely to the jet direction for jets with transverse momentum 20 $< p_{\textrm{T}} < 100$ GeV and in the pseudorapidity range $2.5 < \eta < 4$. The data sample was collected with the LHCb experiment at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 1.64 fb$^{-1}$. Triple differential distributions as a function of the hadron longitudinal momentum fraction, hadron transverse momentum, and jet transverse momentum are also measured for the first time. This helps constrain transverse-momentum-dependent fragmentation functions. Differences in the shapes and magnitudes of the measured distributions for the different hadron species provide insights into the hadronization process for jets predominantly initiated by light quarks.Comment: All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-013.html (LHCb public pages

Study of the B−→Λc+Λˉc−K−B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-} decay

The decay $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ is studied in proton-proton collisions at a center-of-mass energy of $\sqrt{s}=13$ TeV using data corresponding to an integrated luminosity of 5 $\mathrm{fb}^{-1}$ collected by the LHCb experiment. In the $\Lambda_{c}^+ K^{-}$ system, the $\Xi_{c}(2930)^{0}$ state observed at the BaBar and Belle experiments is resolved into two narrower states, $\Xi_{c}(2923)^{0}$ and $\Xi_{c}(2939)^{0}$, whose masses and widths are measured to be $$m(\Xi_{c}(2923)^{0}) = 2924.5 \pm 0.4 \pm 1.1 \,\mathrm{MeV}, \\ m(\Xi_{c}(2939)^{0}) = 2938.5 \pm 0.9 \pm 2.3 \,\mathrm{MeV}, \\ \Gamma(\Xi_{c}(2923)^{0}) = \phantom{000}4.8 \pm 0.9 \pm 1.5 \,\mathrm{MeV},\\ \Gamma(\Xi_{c}(2939)^{0}) = \phantom{00}11.0 \pm 1.9 \pm 7.5 \,\mathrm{MeV},$$ where the first uncertainties are statistical and the second systematic. The results are consistent with a previous LHCb measurement using a prompt $\Lambda_{c}^{+} K^{-}$ sample. Evidence of a new $\Xi_{c}(2880)^{0}$ state is found with a local significance of $3.8\,\sigma$, whose mass and width are measured to be $2881.8 \pm 3.1 \pm 8.5\,\mathrm{MeV}$ and $12.4 \pm 5.3 \pm 5.8 \,\mathrm{MeV}$, respectively. In addition, evidence of a new decay mode $\Xi_{c}(2790)^{0} \to \Lambda_{c}^{+} K^{-}$ is found with a significance of $3.7\,\sigma$. The relative branching fraction of $B^{-} \to \Lambda_{c}^{+} \bar{\Lambda}_{c}^{-} K^{-}$ with respect to the $B^{-} \to D^{+} D^{-} K^{-}$ decay is measured to be $2.36 \pm 0.11 \pm 0.22 \pm 0.25$, where the first uncertainty is statistical, the second systematic and the third originates from the branching fractions of charm hadron decays.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-028.html (LHCb public pages

Measurement of the ratios of branching fractions R(D∗)\mathcal{R}(D^{*}) and R(D0)\mathcal{R}(D^{0})

The ratios of branching fractions $\mathcal{R}(D^{*})\equiv\mathcal{B}(\bar{B}\to D^{*}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(\bar{B}\to D^{*}\mu^{-}\bar{\nu}_{\mu})$ and $\mathcal{R}(D^{0})\equiv\mathcal{B}(B^{-}\to D^{0}\tau^{-}\bar{\nu}_{\tau})/\mathcal{B}(B^{-}\to D^{0}\mu^{-}\bar{\nu}_{\mu})$ are measured, assuming isospin symmetry, using a sample of proton-proton collision data corresponding to 3.0 fb${ }^{-1}$ of integrated luminosity recorded by the LHCb experiment during 2011 and 2012. The tau lepton is identified in the decay mode $\tau^{-}\to\mu^{-}\nu_{\tau}\bar{\nu}_{\mu}$. The measured values are $\mathcal{R}(D^{*})=0.281\pm0.018\pm0.024$ and $\mathcal{R}(D^{0})=0.441\pm0.060\pm0.066$, where the first uncertainty is statistical and the second is systematic. The correlation between these measurements is $\rho=-0.43$. Results are consistent with the current average of these quantities and are at a combined 1.9 standard deviations from the predictions based on lepton flavor universality in the Standard Model.Comment: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2022-039.html (LHCb public pages