Financial decision-making gender and social norms in Zambia: report on the quantitative data generation, analysis and results and subsequent qualitative follow-up

This document presents the findings from quantitative and qualitative data generation and analysisconducted as part of the project “Financial decision-making, gender and social normsin Zambia”. Using a series of specially designed behavioural experiments and focus groupdiscussions, we generated an extensive set of insights into the normative environment withinwhich spouses in Eastern Province, Zambia, decide on individual money holding and saving.Here are some of those insights. Spouses in Eastern Province, Zambia, are willing to compromise household-level income to maintain individual control over money. Wives, but not husbands, are more likely to compromise household-level earnings to maintain individual control over money when theycan keep that money and their actions hidden from their spouses. Individually-held behaviouralprescriptions, i.e., the “shoulds” and “oughts” that individuals have in mind and reference asguides for their behaviour and benchmarks against which to evaluate others’ behaviour, informdecision-making about maintaining individual control over money at a cost to the household.Further, when individuals know that their spouses will find out about their decisions regardingmaintaining individual control over money (or not) at a cost to the household, the individualstake their spouses’ opinions about what they should do into account, i.e., they compromise. Inthe Focus Group Discussions (FGDs), wastefulness on the part of spouses was consistentlygiven as a reason for endeavouring to maintain individual control over money.There is strong but not unequivocal evidence pointing to the existence of a social norm, i.e., a“should” or “ought” that is collectively held and enforced by members of a community,forbidding saving in secret from one’s spouse, with the secrecy, not the saving being theproblem. Assuming it exists, this social norm forbidding saving in secret from one’s spouseapplies to both husbands and wives, and both husbands and wives acknowledge this. However,the extent to which violations of this norm are tolerated depends on who is doing the violatingand evaluating. In patrilineal communities (as compared to matrilineal communities), bothhusbands and wives are especially intolerant of secret saving by husbands, and in bothpatrilineal and matrilineal communities, wives are less tolerant than husbands of secret savingby husbands and more tolerant than husbands of secret saving by wives. This relative toleranceof secret saving by wives notwithstanding, just under one in three wives and one in sixhusbands think that a man is justified in beating his wife if he discovers that she is saving in ane-wallet or has joined a savings group without his knowledge and, as grounds for wife-beating,saving in secret is on a par with neglecting the children, visiting friends or family in secret andrefusing to have sex. When exploring the reasons for this strong norm against saving in secretin the FGDs, women express fear about the money going missing if the secret saver diesunexpectedly. Both men and women strongly believe that if a wife saves in secret, it raisessuspicions about where she is getting the money and that saving in secret can lead to maritaltension.ASC – Publicaties niet-programma gebonde

Financial decision-making, gender and social norms in Zambia: preliminary report on the quantitative data generation, analysis and results

This document presents the preliminary findings from the quantitative data generation and analysis conducted as part of the project “Financial decision-making, gender and social norms in Zambia”. Using a series of specially designed behavioural experiments, we generated an extensive set of insights into the normative environment within which spouses in Eastern Province, Zambia, make decisions about individual money holding and saving. Here are some of those insights. Spouses in Eastern Province, Zambia, are willing to compromise household-level earnings in order to maintain individual control over money. Wives, but not husbands, are more likely to compromise household-level earnings in order to maintain individual control over money, when they can keep that money and their actions hidden from their spouses. Individually-held behavioural prescriptions, i.e., the “shoulds” and “oughts” that individuals have in mind and reference as guides for their own behaviour and as benchmarks against which to evaluate others’ behaviour, inform decision-making about maintaining individual control over money at a cost to the household. Further, when individuals know that their spouses will find out about their descisions regarding maintaining individual control over money (or not) at a cost to the household, the individuals take their spouses’ opinions about what they should do into account, i.e., they compromise. There is strong but not unequivocal evidence pointing to the existence of a social norm, i.e., a “should” or “ought” that is collectively held and enforced by members of a community, forbidding saving in secret from one’s spouse, with the secrecy not the saving being the problem. Assuming it exists, this social norm forbidding saving in secret from one’s spouse applies to both husbands and wives, and this is acknowledged by both husbands and wives. However, the extent to which violations of this norm are tolerated depends on who is doing the violating and who the evaluating. In patrilineal communities (as compared to matrilineal communities), both husbands and wives are especially intolerant of secret saving by husbands and in both patrilineal and matrilineal communities, wives are less tolerant than husbands of secret saving by husbands and more tolerant than husbands of secret saving by wives. This relative tolerance of secret saving by wives notwithstanding, just under one in three wives and one in six husbands think that a man is justified in beating his wife if he discovers that she is saving in an e-wallet or has joined a savings group without his knowledge and, as grounds for wife beating, saving in secret is on a par with neglecting the children, visiting friends or family in secret and refusing to have sex. For further insights, see the main text of the report.ASC – Publicaties niet-programma gebonde

Beam-induced backgrounds measured in the ATLAS detector during local gas injection into the LHC beam vacuum

Inelastic beam-gas collisions at the Large Hadron Collider (LHC), within a few hundred metres of the ATLAS experiment, are known to give the dominant contribution to beam backgrounds. These are monitored by ATLAS with a dedicated Beam Conditions Monitor (BCM) and with the rate of fake jets in the calorimeters. These two methods are complementary since the BCM probes backgrounds just around the beam pipe while fake jets are observed at radii of up to several metres. In order to quantify the correlation between the residual gas density in the LHC beam vacuum and the experimental backgrounds recorded by ATLAS, several dedicated tests were performed during LHC Run 2. Local pressure bumps, with a gas density several orders of magnitude higher than during normal operation, were introduced at different locations. The changes of beam-related backgrounds, seen in ATLAS, are correlated with the local pressure variation. In addition the rates of beam-gas events are estimated from the pressure measurements and pressure bump profiles obtained from calculations. Using these rates, the efficiency of the ATLAS beam background monitors to detect beam-gas events is derived as a function of distance from the interaction point. These efficiencies and characteristic distributions of fake jets from the beam backgrounds are found to be in good agreement with results of beam-gas simulations performed with the Fluka Monte Carlo programme

Search for gravitational waves from Scorpius X-1 in the second Advanced LIGO observing run with an improved hidden Markov model

We present results from a semicoherent search for continuous gravitational waves from the low-mass x-ray binary Scorpius X-1, using a hidden Markov model (HMM) to track spin wandering. This search improves on previous HMM-based searches of LIGO data by using an improved frequency domain matched filter, the J-statistic, and by analyzing data from Advanced LIGO's second observing run. In the frequency range searched, from 60 to 650 Hz, we find no evidence of gravitational radiation. At 194.6 Hz, the most sensitive search frequency, we report an upper limit on gravitational wave strain (at 95% confidence) of h095%=3.47×10-25 when marginalizing over source inclination angle. This is the most sensitive search for Scorpius X-1, to date, that is specifically designed to be robust in the presence of spin wandering. © 2019 American Physical Society

Search for Gravitational Waves Associated with Gamma-Ray Bursts Detected by Fermi and Swift during the LIGO-Virgo Run O3b

We search for gravitational-wave signals associated with gamma-ray bursts (GRBs) detected by the Fermi and Swift satellites during the second half of the third observing run of Advanced LIGO and Advanced Virgo (2019 November 1 15:00 UTC-2020 March 27 17:00 UTC). We conduct two independent searches: A generic gravitational-wave transients search to analyze 86 GRBs and an analysis to target binary mergers with at least one neutron star as short GRB progenitors for 17 events. We find no significant evidence for gravitational-wave signals associated with any of these GRBs. A weighted binomial test of the combined results finds no evidence for subthreshold gravitational-wave signals associated with this GRB ensemble either. We use several source types and signal morphologies during the searches, resulting in lower bounds on the estimated distance to each GRB. Finally, we constrain the population of low-luminosity short GRBs using results from the first to the third observing runs of Advanced LIGO and Advanced Virgo. The resulting population is in accordance with the local binary neutron star merger rate. © 2022. The Author(s). Published by the American Astronomical Society

Narrowband Searches for Continuous and Long-duration Transient Gravitational Waves from Known Pulsars in the LIGO-Virgo Third Observing Run

Isolated neutron stars that are asymmetric with respect to their spin axis are possible sources of detectable continuous gravitational waves. This paper presents a fully coherent search for such signals from eighteen pulsars in data from LIGO and Virgo's third observing run (O3). For known pulsars, efficient and sensitive matched-filter searches can be carried out if one assumes the gravitational radiation is phase-locked to the electromagnetic emission. In the search presented here, we relax this assumption and allow both the frequency and the time derivative of the frequency of the gravitational waves to vary in a small range around those inferred from electromagnetic observations. We find no evidence for continuous gravitational waves, and set upper limits on the strain amplitude for each target. These limits are more constraining for seven of the targets than the spin-down limit defined by ascribing all rotational energy loss to gravitational radiation. In an additional search, we look in O3 data for long-duration (hours-months) transient gravitational waves in the aftermath of pulsar glitches for six targets with a total of nine glitches. We report two marginal outliers from this search, but find no clear evidence for such emission either. The resulting duration-dependent strain upper limits do not surpass indirect energy constraints for any of these targets. © 2022. The Author(s). Published by the American Astronomical Society

Erratum: "A Gravitational-wave Measurement of the Hubble Constant Following the Second Observing Run of Advanced LIGO and Virgo" (2021, ApJ, 909, 218)

[no abstract available

Partitioning the Heritability of Tourette Syndrome and Obsessive Compulsive Disorder Reveals Differences in Genetic Architecture

The direct estimation of heritability from genome-wide common variant data as implemented in the program Genome-wide Complex Trait Analysis (GCTA) has provided a means to quantify heritability attributable to all interrogated variants. We have quantified the variance in liability to disease explained

Search for gravitational-wave transients associated with magnetar bursts in advanced LIGO and advanced Virgo data from the third observing run

Gravitational waves are expected to be produced from neutron star oscillations associated with magnetar giant f lares and short bursts. We present the results of a search for short-duration (milliseconds to seconds) and longduration (∼100 s) transient gravitational waves from 13 magnetar short bursts observed during Advanced LIGO, Advanced Virgo, and KAGRA’s third observation run. These 13 bursts come from two magnetars, SGR1935 +2154 and SwiftJ1818.0−1607. We also include three other electromagnetic burst events detected by FermiGBM which were identified as likely coming from one or more magnetars, but they have no association with a known magnetar. No magnetar giant flares were detected during the analysis period. We find no evidence of gravitational waves associated with any of these 16 bursts. We place upper limits on the rms of the integrated incident gravitational-wave strain that reach 3.6 × 10−²³ Hz at 100 Hz for the short-duration search and 1.1 ×10−²² Hz at 450 Hz for the long-duration search. For a ringdown signal at 1590 Hz targeted by the short-duration search the limit is set to 2.3 × 10−²² Hz. Using the estimated distance to each magnetar, we derive upper limits upper limits on the emitted gravitational-wave energy of 1.5 × 1044 erg (1.0 × 1044 erg) for SGR 1935+2154 and 9.4 × 10^43 erg (1.3 × 1044 erg) for Swift J1818.0−1607, for the short-duration (long-duration) search. Assuming isotropic emission of electromagnetic radiation of the burst fluences, we constrain the ratio of gravitational-wave energy to electromagnetic energy for bursts from SGR 1935+2154 with the available fluence information. The lowest of these ratios is 4.5 × 103

A joint Fermi-GBM and Swift-BAT analysis of gravitational-wave candidates from the third gravitational-wave observing run

We present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational-wave (GW) candidate events identified during the third observing run of the Advanced LIGO and Advanced Virgo detectors. Using Fermi-GBM onboard triggers and subthreshold gamma-ray burst (GRB) candidates found in the Fermi-GBM ground analyses, the Targeted Search and the Untargeted Search, we investigate whether there are any coincident GRBs associated with the GWs. We also search the Swift-BAT rate data around the GW times to determine whether a GRB counterpart is present. No counterparts are found. Using both the Fermi-GBM Targeted Search and the Swift-BAT search, we calculate flux upper limits and present joint upper limits on the gamma-ray luminosity of each GW. Given these limits, we constrain theoretical models for the emission of gamma rays from binary black hole mergers