Borough of Manhattan Community College

Environmental contaminants are a major source of global burden of morbidity. While environmental health literacy framework has been used to understand people’s competencies to comprehend environmental health information, there is paucity of research that examines households’ knowledge towards environmental contaminants in poor urban setting while employing geovisualization techniques. Therefore, this study has two objectives: (1) to examine the association between people’s knowledge and risk perceptions of contaminants, and environmental health literacy levels, and (2) explore the relationship between environmental health literacy, and points of environmental exposure through geographic representation. Drawing on health literacy models, a survey was administered to 254 household heads in Old Tulaku. A GPS-enabled location-based software was used. The analyses strategy for the survey and mapped environmental data principally included multiple linear regression modeling, clustering, and buffer analysis. The study found that higher environmental risk perception was associated with higher environmental health literacy. Also, there is disjoin between acknowledgment of the presence of environmental contaminants and households prioritizing discussion on preventive measures on encountering chemical waste. The mapping shows several points of contaminants exposure across the community. These findings suggest a need for community engagement strategies on the potential impact of contaminants to enhance environmental health literacy.

CHamoru people, the Indigenous peoples of the Mariana Islands, have long been voyagers. In contemporary times, their voyages across the United States and beyond have become a source of discussion by scholars, artists, and activists. This essay illustrates how poetry of the CHamoru diaspora illuminates our interconnectedness to one another across geographical distance: relationality, in other words, not remoteness. I focus on the works of two diasporic CHamoru writers, Lehua Taitano and Clarissa Mendiola, who utilize similar imagery rooted in CHamoru voyaging epistemologies. Instead of foregrounding the geographical barriers between Guam and the continental United States, Mendiola’s and Taitano’s imagery enacts a decolonial poetics that illustrates the interconnectedness of CHamoru communities in the Pacific and beyond.

Quasi-periodic eruptions (QPEs) are rapid, recurring X-ray bursts from supermassive black holes, believed to result from interactions between accretion disks and surrounding matter. The galaxy SDSS1335+0728, previously stable for two decades, exhibited an increase in optical brightness in December 2019, followed by persistent active galactic nucleus (AGN)-like variability for 5 yr, suggesting the activation of a ~10⁶-M⊙ black hole. Since February 2024, X-ray emission has been detected, revealing extreme ~4.5-d QPEs with high fluxes and amplitudes, long timescales, large integrated energies and a ~25-d superperiod. Low-significance UV variations are reported, probably related to the long timescales and large radii from which the emission originates. This discovery broadens the possible formation channels for QPEs, suggesting that they are linked not solely to tidal disruption events but more generally to newly formed accretion flows, which we are witnessing in real time in a turn-on AGN candidate.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

Nairobi Hip Hop Flow combines ethnographic methods, political history, and music and performance analysis to illustrate the richness of hip hop’s embodied performance practices. RaShelle R. Peck examines how hip hop artists in Nairobi’s underground rap culture engage with political seriousness in lyrics and sound by fostering a creative playfulness using bodily movement. This unprecedented study shows how Nairobi artists circulate diasporic blackness while at the same time indigenizing hip hop music to interrogate Kenya’s sociopolitical landscape.

A search for a dark photon, a new light neutral particle, which decays promptly into collimated pairs of electrons or muons is presented. The search targets dark photons resulting from the exotic decay of the Standard Model Higgs boson, assuming its production via the dominant gluon-gluon fusion mode. The analysis is based on $140~\hbox {fb}^{-1}$ 140 fb - 1 of data collected with the ATLAS detector at the Large Hadron Collider from proton-proton collisions at a center-of-mass energy of 13 $\text {T}\text {e}\hspace{-1.00006pt}\text {V}$ Te V . Events with collimated pairs of electrons or muons are analysed and background contributions are estimated using data-driven techniques. No significant excess in the data above the Standard Model background is observed. Upper limits are set at 95% confidence level on the branching ratio of the Higgs boson decay into dark photons between 0.001% and 5%, depending on the assumed dark photon mass and signal model.

The ATLAS experiment has developed extensive software and distributed computing systems for Run 3 of the LHC. These systems are described in detail, including software infrastructure and workflows, distributed data and workload management, database infrastructure, and validation. The use of these systems to prepare the data for physics analysis and assess its quality are described, along with the software tools used for data analysis itself. An outlook for the development of these projects towards Run 4 is also provided.

A bstract Differential measurements of Higgs boson production in the τ -lepton-pair decay channel are presented in the gluon fusion, vector-boson fusion (VBF), VH and $t\overline{t}H$ t t ¯ H associated production modes, with particular focus on the VBF production mode. The data used to perform the measurements correspond to 140 fb − 1 of proton-proton collisions collected by the ATLAS experiment at the LHC. Two methods are used to perform the measurements: the Simplified Template Cross-Section (STXS) approach and an Unfolded Fiducial Differential measurement considering only the VBF phase space. For the STXS measurement, events are categorized by their production mode and kinematic properties such as the Higgs boson’s transverse momentum ( ${p}_{\textrm{T}}^{\textrm{H}}$ p T H ), the number of jets produced in association with the Higgs boson, or the invariant mass of the two leading jets ( m jj ). For the VBF production mode, the ratio of the measured cross-section to the Standard Model prediction for m jj > 1.5 TeV and ${p}_{\textrm{T}}^{\textrm{H}}$ p T H > 200 GeV ( ${p}_{\textrm{T}}^{\textrm{H}}$ p T H < 200 GeV) is ${1.29}_{-0.34}^{+0.39}$ 1.29 − 0.34 + 0.39 ( ${0.12}_{-0.33}^{+0.34}$ 0.12 − 0.33 + 0.34 ). This is the first VBF measurement for the higher- ${p}_{\textrm{T}}^{\textrm{H}}$ p T H criteria, and the most precise for the lower- ${p}_{\textrm{T}}^{\textrm{H}}$ p T H criteria. The fiducial cross-section measurements, which only consider the kinematic properties of the event, are performed as functions of variables characterizing the VBF topology, such as the signed ∆ ϕ jj between the two leading jets. The measurements have a precision of 30%–50% and agree well with the Standard Model predictions. These results are interpreted in the SMEFT framework, and place the strongest constraints to date on the CP-odd Wilson coefficient ${c}_{H\overset{\sim }{W}}$ c H W ~ .

This paper reports the measurement of Higgs boson production in association with a $t\bar{t}$ t t ¯ pair in the $H\rightarrow b\bar{b}$ H → b b ¯ decay channel. The analysis uses 140 fb $^{-1}$ - 1 of 13 $\text {TeV}$ TeV proton–proton collision data collected with the ATLAS detector at the Large Hadron Collider. The final states with one or two electrons or muons are employed. An excess of events over the expected background is found with an observed (expected) significance of 4.6 (5.4) standard deviations. The $t\bar{t}H$ t t ¯ H cross-section is $\sigma _{t\bar{t}H} = 411~^{+101}_{-92}~\text {fb} = 411 \pm 54(\text {stat.})~^{+85}_{-75}(\text {syst.})~\text {fb}$ σ t t ¯ H = 411 - 92 + 101 fb = 411 ± 54 ( stat. ) - 75 + 85 ( syst. ) fb for a Higgs boson mass of 125.09 $\text {GeV}$ GeV , consistent with the prediction of the Standard Model of $507^{+35}_{-50}$ 507 - 50 + 35 fb. The cross-section is also measured differentially in bins of the Higgs boson transverse momentum within the simplified template cross-section framework.

A bstract This article presents a search for a heavy charged Higgs boson produced in association with a top quark and a bottom quark, and decaying into a W boson and a 125 GeV Higgs boson h . The search is performed in final states with one charged lepton, missing transverse momentum, and jets using proton-proton collision data at $\sqrt{s}$ s = 13 TeV recorded with the ATLAS detector during Run 2 of the LHC at CERN. This data set corresponds to a total integrated luminosity of 140 fb − 1 . The search is conducted by examining the reconstructed invariant mass distribution of the Wh candidates for evidence of a localised excess in the charged Higgs boson mass range from 250 GeV to 3 TeV. No significant excess of data over the expected background is observed and 95% confidence-level upper limits between 2.8 pb and 1.2 fb are placed on the production cross-section times branching ratio for charged Higgs bosons decaying into Wh .

A bstract A search for the production of top-quark pairs with the same electric charge ( tt or $\overline{tt}$ tt ¯ ) is presented. The analysis uses proton-proton collision data at $\sqrt{s}$ s = 13 TeV, recorded by the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 140 fb − 1 . Events with two same-charge leptons and at least two b -tagged jets are selected. Neural networks are employed to define two selections sensitive to additional couplings beyond the Standard Model that would enhance the production rate of same-sign top-quark pairs. No significant signal is observed, leading to an upper limit on the total production cross-section of same-sign top-quark pairs of 1.6 fb at 95% confidence level. Corresponding limits on the three Wilson coefficients associated with the ${\mathcal{O}}_{tu}^{(1)}$ O tu 1 , ${\mathcal{O}}_{Qu}^{(1)}$ O Qu 1 , and ${\mathcal{O}}_{Qu}^{(8)}$ O Qu 8 operators in the Standard Model Effective Field Theory framework are derived.

A bstract A search for T and Y vector-like quarks produced in proton-proton collisions at a centre-of-mass energy of 13 TeV and decaying into Wb in the fully hadronic final state is presented. The search uses 139 fb − 1 of data collected by the ATLAS detector at the LHC from 2015 to 2018. The final state is characterised by a hadronically decaying W boson with large Lorentz boost and a b -tagged jet, which are used to reconstruct the invariant mass of the vector-like quark candidate. The main background is QCD multijet production, which is estimated using a data-driven method. Upon finding no significant excess in data, mass limits at 95% confidence level are obtained as a function of the global coupling parameter, κ . The observed lower limits on the masses of Y quarks with κ = 0 . 5 and κ = 0 . 7 are 2 . 0 TeV and 2 . 4 TeV, respectively. For T quarks, the observed mass limits are 1 . 4 TeV for κ = 0 . 5 and 1 . 9 TeV for κ = 0 . 7.

A bstract A search for the production of a Higgs boson and one or more charm quarks, in which the Higgs boson decays into a photon pair, is presented. This search uses proton-proton collision data with a centre-of-mass energy of $\sqrt{s}$ s = 13 TeV and an integrated luminosity of 140 fb − 1 recorded by the ATLAS detector at the Large Hadron Collider. The analysis relies on the identification of charm-quark-containing jets, and adopts an approach based on Gaussian process regression to model the non-resonant di-photon background. The observed (expected, assuming the Standard Model signal) upper limit at the 95% confidence level on the cross-section for producing a Higgs boson and at least one charm-quark-containing jet that passes a fiducial selection is found to be 10.6 pb (8.8 pb). The observed (expected) measured cross-section for this process is 5 . 3 ± 3 . 2 pb (2 . 9 ± 3 . 1 pb).