The Social Institution and Inscription of Child Marriage in the Terai Region of Nepal

Marriage is typically considered to be one of the foundations of the family unit, and family is thought to be one of the pillars of society. Because marriage is such a primary social concept, its forms and functions may be taken for granted, despite the fact that it is culturally dependent. For example, the idea that one must be in love in order to get married may be more cultural ideal than universal idea—and is thus not true of many cultures. Arranged marriages are still performed in many parts of the world, and can be means of building kinship circles and economic ties, rather than serving as declarations of cultivated, romantic love. While the reasons for marriage may be negotiable, certain human rights regarding marriage are not. In some regions, including South Asia, marriages are often arranged between children, a status typically defined as people under the age of eighteen. In Nepal, the numbers of girls married off before they become legal adults, or before they even hit puberty are still fairly staggering, despite the practice being declared illegal since 1963, more than 50 years ago. Certain arguments in favor of child brides are that it is an important cultural practice, or that a girl is safer from sexual predators if she is married. However, the reality of premature marriages is that the girls are subject to many health issues, including psychological ones, lose prospects of education, and often times, the husbands prove to be their sexual assaulters anyway. Further problematizing the practice is the fact that not all children are equally at risk. Girls do typically marry younger than boys, though both genders are susceptible to child marriage. If a girl is from a particular region, religion, ethnic group, or caste, her probability of being married early will also rise, often because of economic considerations of the dowry. Considering the myriad factors that influence the practice of child marriage in Nepal, as well as the proven inadequacy of the law, it is important to locate and frame the practice within the cultures in which it exists. With that said, one must question where the practice exists the most, why it exists there the most, and to what extent the practice of child marriage is a symptom of a larger dynamic of gender inequality. After spending time in the Terai, where the practice is the most common, it is my opinion that child marriage would not persist if it were not for the pervasiveness of practices such as the dowry, the unequal emphasis of marriage for women, and the practice of the daughter moving into the husband’s family’s home, all of which strengthen the existing patriarchy and prevent local girls from becoming self-determined

Report from Working Group 3: Beyond the standard model physics at the HL-LHC and HE-LHC

This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in the search for Beyond the Standard Model (BSM) physics, of the High Luminosity (HL) phase of the LHC, defined as $3$ ab$^{-1}$ of data taken at a centre-of-mass energy of 14 TeV, and of a possible future upgrade, the High Energy (HE) LHC, defined as $15$ ab$^{-1}$ of data at a centre-of-mass energy of 27 TeV. We consider a large variety of new physics models, both in a simplified model fashion and in a more model-dependent one. A long list of contributions from the theory and experimental (ATLAS, CMS, LHCb) communities have been collected and merged together to give a complete, wide, and consistent view of future prospects for BSM physics at the considered colliders. On top of the usual standard candles, such as supersymmetric simplified models and resonances, considered for the evaluation of future collider potentials, this report contains results on dark matter and dark sectors, long lived particles, leptoquarks, sterile neutrinos, axion-like particles, heavy scalars, vector-like quarks, and more. Particular attention is placed, especially in the study of the HL-LHC prospects, to the detector upgrades, the assessment of the future systematic uncertainties, and new experimental techniques. The general conclusion is that the HL-LHC, on top of allowing to extend the present LHC mass and coupling reach by $20-50\%$ on most new physics scenarios, will also be able to constrain, and potentially discover, new physics that is presently unconstrained. Moreover, compared to the HL-LHC, the reach in most observables will, generally more than double at the HE-LHC, which may represent a good candidate future facility for a final test of TeV-scale new physics

A Systematic Review of Delayed High-Grade Atrioventricular Block After Transcatheter Aortic Valve Implantation

Background: High-grade atrioventricular block (HGAVB) is common after transcatheter aortic valve implantation (TAVI), often necessitating permanent pacemaker (PPM) implantation. Delayed HGAVB has varying definitions but typically refers to onset 48 hours after TAVI or following discharge and may cause syncope and sudden cardiac death. This review estimates the incidence of delayed HGAVB and identifies limitations of current literature. Methods: A systematic review was performed of the following online databases: Medline, Cochrane, Web of Science, and Scopus. Studies that labelled the outcome of “delayed” or “late” atrioventricular block after TAVI were included; patients with previous PPM or aortic valve surgery were excluded. Initial search yielded 775 studies, which, after screening, was narrowed to 19 studies. Results: Nineteen studies with 14,898 patients were included. Mean age was 81.7 years, and 46.3% were male. Mean Society of Thoracic Surgeons (STS) score was 5.6%, and 31.3% of patients had known atrial fibrillation. The most common access site was transfemoral (84.8%), whereas balloon-expandable valves were used in 62.1%, self-expanding valves in 34.0%, and mechanically expanding valves in 3.9% of cases. The incidence of delayed HGAVB ranged from 1.7% to 14.6%, with significant methodologic heterogeneity noted among the included studies. Conclusions: Delayed HGAVB is a common and potentially serious complication of TAVI, with similar risk factors to acute HGAVB. With a move toward an early discharge strategy post-TAVI, further prospective study of delayed HGAVB is warranted to improve understanding of predisposing factors, incidence, timing, and implications. Résumé: Contexte: L’apparition d’un bloc atrioventriculaire de haut degré (BAVHD) est fréquente après l’implantation valvulaire aortique par cathéter (IVAC), ce qui nécessite souvent l’implantation d’un stimulateur cardiaque permanent. Les définitions d’un BAVHD tardif varient, mais elles font habituellement référence à l’apparition du bloc 48 heures après l’IVAC ou après le congé de l’hôpital. Le bloc peut alors provoquer une syncope et une mort subite d’origine cardiaque. Cette analyse vise à estimer l’incidence de la formation d’un BAVHD tardif et à définir les lacunes dans les publications actuelles. Méthodologie: Une analyse des études publiées dans les bases de données en ligne suivantes a été menée : Medline, Cochrane, Web of Science et Scopus. Les études dont le libellé comprenait l’issue du bloc atrioventriculaire tardif ou éloigné (« delayed » ou « late ») ont été retenues. Les patients qui avaient antérieurement reçu un stimulateur cardiaque permanent ou subi une intervention chirurgicale de la valve aortique ont été exclus. La recherche initiale a permis de recenser 775 études, nombre qui a été réduit à 19 après l’application des critères de sélection. Résultats: Dix-neuf études totalisant 14 898 patients ont été retenues. L’âge moyen était 81,7 ans, et 46,3 % des patients étaient des hommes. Le score STS (Society of Thoracic Surgeons) moyen était de 5,6 %, et 31,3 % des patients avaient une fibrillation auriculaire. Le point d’accès le plus fréquent était par l’artère fémorale (84,8 %). Des valves expansibles par ballonnet ont été utilisées dans 62,1 % des cas, des valves auto-expansibles dans 34,0 % des cas et des valves expansibles mécaniquement dans 3,9 % des cas. L’incidence du BAVHD tardif variait de 1,7 % à 14,6 %, mais la méthodologie était très hétérogène d’une étude à l’autre. Conclusions: Le BAVHD tardif est une complication fréquente et potentiellement grave de l’IVAC, et ses facteurs de risque sont comparables à ceux du BAVHD aigu. Étant donné la volonté d’adopter une stratégie de congé précoce après une IVAC, une autre étude prospective sur le BAVHD tardif s’impose pour mieux comprendre les facteurs prédisposants, l’incidence, la chronologie et les implications

Prospective observational study on the accuracy of predictors of high-grade atrioventricular conduction block after transcatheter aortic valve implantation (CONDUCT-TAVI): study protocol, background and significance

Introduction Aortic stenosis is the most common cardiac valve pathology worldwide and has a mortality rate of over 50% at 5 years if left untreated. Transcatheter aortic valve implantation (TAVI) is a minimally invasive and highly effective alternative treatment option to open-heart surgery. High-grade atrioventricular conduction block (HGAVB) is one of the most common complications after TAVI and requires a permanent pacemaker. Due to this, patients are typically monitored for 48 hours post TAVI, however up to 40% of HGAVB may delayed, and occur after discharge. Delayed HGAVB can cause syncope or sudden unexplained cardiac death in a vulnerable population, and no accurate methods currently exist to identify patients at risk.Methods and analysis The prospective observational study on the accuracy of predictors of high-grade atrioventricular conduction block after transcatheter aortic valve implantation (CONDUCT-TAVI) trial is an Australian-led, multicentre, prospective observational study, aiming to improve the prediction of HGAVB, after TAVI. The primary objective of the trial is to assess whether published and novel invasive electrophysiology predictors performed immediately before and after TAVI can help predict HGAVB after TAVI. The secondary objective aims to further evaluate the accuracy of previously published predictors of HGAVB after TAVI, including CT measurements, 12-lead ECG, valve characteristics, percentage oversizing and implantation depth. Follow-up will be for 2 years, and detailed continuous heart rhythm monitoring will be obtained by inserting an implantable loop recorder in all participants.Ethics and dissemination Ethics approval has been obtained for the two participating centres. Results of the study will be submitted for publication in a peer-reviewed journal.Trial registration number ACTRN12621001700820

Report from Working Group 3: Beyond the Standard Model physics at the HL-LHC and HE-LHC

This is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in the search for Beyond the Standard Model (BSM) physics, of the High Luminosity (HL) phase of the LHC, defined as $3$ ab$^{-1}$ of data taken at a centre-of-mass energy of 14 TeV, and of a possible future upgrade, the High Energy (HE) LHC, defined as $15$ ab$^{-1}$ of data at a centre-of-mass energy of 27 TeV. We consider a large variety of new physics models, both in a simplified model fashion and in a more model-dependent one. A long list of contributions from the theory and experimental (ATLAS, CMS, LHCb) communities have been collected and merged together to give a complete, wide, and consistent view of future prospects for BSM physics at the considered colliders. On top of the usual standard candles, such as supersymmetric simplified models and resonances, considered for the evaluation of future collider potentials, this report contains results on dark matter and dark sectors, long lived particles, leptoquarks, sterile neutrinos, axion-like particles, heavy scalars, vector-like quarks, and more. Particular attention is placed, especially in the study of the HL-LHC prospects, to the detector upgrades, the assessment of the future systematic uncertainties, and new experimental techniques. The general conclusion is that the HL-LHC, on top of allowing to extend the present LHC mass and coupling reach by $20-50\%$ on most new physics scenarios, will also be able to constrain, and potentially discover, new physics that is presently unconstrained. Moreover, compared to the HL-LHC, the reach in most observables will, generally more than double at the HE-LHC, which may represent a good candidate future facility for a final test of TeV-scale new physics

Report from Working Group 3 : Beyond the Standard Model Physics at the HL-LHC and HE-LHC

CERN Yellow Reports: Monographs, vol 7 (2019)Contribution to: HL/HE-LHC WorkshopThis is the third out of five chapters of the final report [1] of the Workshop on Physics at HL-LHC, and perspectives on HE-LHC [2]. It is devoted to the study of the potential, in the search for Beyond the Standard Model (BSM) physics, of the High Luminosity (HL) phase of the LHC, defined as $3$ ab$^{-1}$ of data taken at a centre-of-mass energy of 14 TeV, and of a possible future upgrade, the High Energy (HE) LHC, defined as $15$ ab$^{-1}$ of data at a centre-of-mass energy of 27 TeV. We consider a large variety of new physics models, both in a simplified model fashion and in a more model-dependent one. A long list of contributions from the theory and experimental (ATLAS, CMS, LHCb) communities have been collected and merged together to give a complete, wide, and consistent view of future prospects for BSM physics at the considered colliders. On top of the usual standard candles, such as supersymmetric simplified models and resonances, considered for the evaluation of future collider potentials, this report contains results on dark matter and dark sectors, long lived particles, leptoquarks, sterile neutrinos, axion-like particles, heavy scalars, vector-like quarks, and more. Particular attention is placed, especially in the study of the HL-LHC prospects, to the detector upgrades, the assessment of the future systematic uncertainties, and new experimental techniques. The general conclusion is that the HL-LHC, on top of allowing to extend the present LHC mass and coupling reach by $20-50\%$ on most new physics scenarios, will also be able to constrain, and potentially discover, new physics that is presently unconstrained. Moreover, compared to the HL-LHC, the reach in most observables will, generally more than double at the HE-LHC, which may represent a good candidate future facility for a final test of TeV-scale new physics

Search for intermediate-mass black hole binaries in the third observing run of Advanced LIGO and Advanced Virgo

International audienceIntermediate-mass black holes (IMBHs) span the approximate mass range 100−105 M⊙, between black holes (BHs) that formed by stellar collapse and the supermassive BHs at the centers of galaxies. Mergers of IMBH binaries are the most energetic gravitational-wave sources accessible by the terrestrial detector network. Searches of the first two observing runs of Advanced LIGO and Advanced Virgo did not yield any significant IMBH binary signals. In the third observing run (O3), the increased network sensitivity enabled the detection of GW190521, a signal consistent with a binary merger of mass ∼150 M⊙ providing direct evidence of IMBH formation. Here, we report on a dedicated search of O3 data for further IMBH binary mergers, combining both modeled (matched filter) and model-independent search methods. We find some marginal candidates, but none are sufficiently significant to indicate detection of further IMBH mergers. We quantify the sensitivity of the individual search methods and of the combined search using a suite of IMBH binary signals obtained via numerical relativity, including the effects of spins misaligned with the binary orbital axis, and present the resulting upper limits on astrophysical merger rates. Our most stringent limit is for equal mass and aligned spin BH binary of total mass 200 M⊙ and effective aligned spin 0.8 at 0.056 Gpc−3 yr−1 (90% confidence), a factor of 3.5 more constraining than previous LIGO-Virgo limits. We also update the estimated rate of mergers similar to GW190521 to 0.08 Gpc−3 yr−1.Key words: gravitational waves / stars: black holes / black hole physicsCorresponding author: W. Del Pozzo, e-mail: [email protected]† Deceased, August 2020