Ellis Island: Vibration Effects on Historic Buildings Caused by Pile Driving

The seawalls that surround Ellis Island were constructed in the early 1900s and now show varying degrees of deterioration. The approach to the structural repair of the seawalls consisted of installing H-piles and ground anchors for stabilization of vertical and horizontal seawall movements. The H-piles were driven through the retained soils along the seawalls to top of rock. This paper presents ground vibration data collected simultaneously by four seismographs during driving of 40 piles (up to 100 ft depth) at various distances from the historical buildings. A correlation between the recorded PPV values and the distance to pile driving is presented. Also, a specific comparison between the measured attenuations from an instrumented pile with documented driving energy records and those recommended in published literature is presented. It was found that the vibrations induced by pile driving well exceeded the Peak Particle Velocity limits established in the project specifications and those commonly established in the literature. However, damage to the historical buildings was not significant

BAJOCIAN LISSOCERATINAE (HAPLOCERATOIDEA, AMMONITIDA) FROM THE MEDITERRANEAN-CAUCASIAN SUBREALM

A revision of the Bajocian Lissoceratinae is presented. The study of a huge quantity of lissoceratins from different sites of the Western Tethys (Northwest European, Sub-Mediterranean and Mediterranean bioprovinces) within the Tethys-Panthalassa Realm provided data useful to implement the systematics of these almost neglected, never deeply analysed ammonites. Two genera, Lissoceras Bayle and Semilissoceras n. gen., are described with 16 species, among which 8 (four dimorphic, three macroconchiate and one microconchiate) new species: L. submediterraneum, L. maizetense, L. ovale, L. sturanii, L. maerteni, S. ellipticum, S. turgidulum and S. costellatum. The neotype of L. oolithicum is established. The microconchiate genus Microlissoceras is regarded as the junior synonym of the macroconchiate Lissoceras. Taxa are discussed according to four groups that gather taxa sharing common morpho-structural features. They roughly relate to successive biochronostratigraphical intervals within the Bajocian Stage and are headed by species largely known in literature: S. semicostulatum (Buckman) with suboval to compressed whorl section and rectiradiate ribs on the outer half flank; L. oolithicum (d’Orbigny) with subtriangular to ovate whorl section, large and depressed ventral saddle, large suspensive lobe; L. haugi Sturani with ovate to globular whorl section, narrow lobe E and suspensive lobe; and L. psilodiscus (Schloenbach) with highly compressed whorl section, high ventral saddle and narrow lobe E. The phyletic relation of Lissoceras and Semilissoceras to the Aalenian-Bajocian Bradfordia-group is discussed, regarding Semilissoceras as the known stem-taxon on which the subfamily Lissoceratinae bases

Autoconcepto físico según la actividad físicodeportiva realizada y la motivación hacia ésta

En este trabajo de investigación se examinan las diferencias en los distintos dominios del autoconcepto físico en función del tipo de práctica físicodeportiva y la motivación hacia ésta, incidiendo especialmente en el atractivo físico. En la investigación participaron 894 adolescentes españoles entre 12 y 17 años a los que se les administraron el Cuestionario de Autoconcepto Físico (CAF) y el Cuestionario de Motivos de Práctica Deportiva. Los resultados permitieron comprobar cómo el autoconcepto físico fue significativamente menor, particularmente en las mujeres, en aquellas prácticas dónde es importante el factor estético o se practican con vistas a mejorar la apariencia física. Las practicantes de este tipo de actividades físicodeportivas presentaron un autoconcepto físico y general más devaluado, especialmente en la escala de atractivo físico. Además, para las mujeres, las motivaciones estéticas hacia la práctica se asociaron a peores percepciones físicas y de autoconcepto general. Todo ello hace vincular el autoconcepto físico, el tipo de práctica y los motivos hacia ella con la insatisfacción corporal en las mujeres adolescentes

Cyberbullying in elementary and middle school students: A systematic review

The goal of the present study was to extend the scope of previous reviews on cyberbullying to focus on elementary and middle school students, ages when research indicates that children begin to use mobile phones and social media. From 2016 to 2020, a total of 43 articles were included in the final selection, and purpose/s, sample, design/instruments, and main findings/conclusions were assessed on each one. The following topics emerged from the results and were discussed: cyberbullying/cybervictimization and psychosocial variables, students’ sociodemographic variables, connections between bullying and cyberbullying, students’ roles related to cyberbullying, external factors and students’ responses, and effectiveness of cyberbullying programs. Students experiencing cyber bullying at an early school age reported negative feelings, such as depression or anxiety. They are often linked to bullying scenarios and even to the same role (cyberbully, cybervictim or cyber witness). Different programs have been shown to positively influence cyberbullying from a young age, important to prevent it, when children begin to use mobile phones and social media. Pro tective factors, such as specific pedagogical approaches (e.g. Cooperative Learning or Teaching for Personal and Social Responsibility) or programs, as well as the joined work of different agents (e.g. psychologists, teachers, parents, peers), should be considered to promote a positive evolu tion on CB prevention. Nevertheless, more studies are needed at these grades, as well as quali tative research designs, to deepen on the students’ feelings on cyberbullyin

Efficient Ligand Passivation Enables Ultrastable CsPbX3 Perovskite Nanocrystals in Fully Alcohol Environments

Halide perovskite nanocrystals (PNCs) have demonstrated their wide potential to fabricate efficient optoelectronic devices and to prepare promising photocatalysts for solar-driven photo(electro)chemical reactions. However, their use in most of the practical applications is limited due to the instability of PNCs in polar environments. Here, the preparation of non-encapsulated CsPbX3 nanocrystals dispersed in fully alcohol environments, with outstanding stability through surface defect passivation strategy is reported. By using didodecyldimethylammonium bromide (DDAB) during material post-treatment, highly luminescent CsPbBr3 PNCs with remarkable stability in methanol/butanol medium up to 7 months with near-unity photoluminescence quantum yield are achieved. This approach is extrapolated to stabilize iodine-based CsPbBr3-xIx and CsPbI3 PNCs, showing an improvement of their photoluminescence features and stability in these high polar alcohols up to 6 h. DDAB mediates the defect suppression through ligand exchange and avoids the full permeation of alcohol to be in contact with the PNCs. In this context, DDAB induces ionization of alcohol molecules to strengthen the surface passivation. The findings open the door to the development of long-term stable CsPbX3 PNCs with high optical performance to be used in polar environments.This work was supported by the European Innovation Council (EIC) via OHPERA project (grant agreement 101071010), the Spanish Ministry of Science and Innovation under projects STABLE (PID2019-107314RB-I00) and ECOCAT (PID2020-116093RB-C41), the Spanish Ministry of Science and Innovation under project She-LED (PID2021-122960OA-I00), and the Generalitat Valenciana via Prometeo Grant Q-Solutions (CIPROM/2021/078). C.A.M. acknowledges APOSTD grant (APOSTD/2021/251) for funding. The authors also thank the Ministry of Education, Youth and Sports of the Czech Republic for the financial support of XPS measurements using CEMNAT infrastructure (project LM 2018103). The authors are very grateful to the “Serveis Centrals d'Instrumentació Científica (SCIC)” of the Universitat Jaume I

Switchable All Inorganic Halide Perovskite Nanocrystalline Photoelectrodes for Solar-Driven Organic Transformations

All inorganic halide perovskite nanocrystals (NCs) are considered as fascinating materials for a wide range of optoelectronic applications encompassing photovoltaics, lasing, sensing, and photocatalysis due to their outstanding optoelectronic properties. Herein, it is demonstrated that the photoelectrochemical behavior of CsPbBr3 NC films can be tailored through engineering the selective contacts and accepting species in the electrolyte. This concept has been successfully applied to the photoelectrochemical oxidation of benzyl alcohol (BzOH) to benzyl aldehyde (BzCHO) and the reverse photoelectrochemical reduction of BzCHO to BzOH, demonstrating that CsPbBr3 NCs activate both reactions with photocurrents up to 40 μA cm 2 toward BzCHO production and 5 μA cm 2 for the reverse reaction at 0.15 V versus normal hydrogen electrode. The obtained results highlight the huge potential and versatility of halide perovskite NCs for photoelectrocatalytic applications, validating the implementation of these materials for a wide range of solar-driven complex organic transformations, and emphasizing the urgent need for stabilization strategies to move beyond the proof-of-concept stage to relevant technological developments

Prevalence and risk factors of gestational diabetes mellitus: findings from a universal screening feasibility program in Lima, Peru.

BACKGROUND: Gestational diabetes mellitus (GDM) is a global public health concern with potential implications for the health of a mother and her offspring. However, data on the prevalence and risk factors of GDM in Latin America are scarce. The study was designed to estimate the prevalence of GDM and identify maternal risk factors among Peruvian women. METHODS: A cross-sectional study was conducted among 1300 pregnant women attending a prenatal clinic in Lima, Peru. GDM was diagnosed using an Oral Glucose Tolerance Test (OGTT) performed between 24 and 28 gestational weeks using the International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria. Depression status was assessed using the Patient Health Questionnaire-9. Multivariate logistic regression models were used to identify risk factors of GDM. RESULTS: Approximately 16% of pregnant women were diagnosed with GDM. The prevalence of obesity and depression were 24.4 and 10.6%, respectively. After adjusting for confounders, mid-pregnancy obesity was associated with a 1.64-fold increased odds of GDM (OR: 1.64; 95% CI: 1.03-2.61). Participants with a family history of diabetes had a 1.5-fold increased odds of developing GDM (OR: 1.51, 95% CI: 1.10-2.07) as compared to women without this family history. Depression was associated with a 1.54-fold increased odds of GDM (OR: 1.54; 95% CI:1.09-2.17). CONCLUSIONS: GDM is highly prevalent and was associated with maternal obesity, family history of diabetes and antepartum depression among Peruvian women. Intervention programs aimed at early diagnoses and management of GDM need to take maternal obesity, family history of diabetes and antepartum depression into account

Highly Durable Nanoporous Cu2–xS Films for Efficient Hydrogen Evolution Electrocatalysis under Mild pH Conditions

Copper-based hydrogen evolution electrocatalysts are promising materials to scale-up hydrogen production due to their reported high current densities; however, electrode durability remains a challenge. Here, we report a facile, cost-effective, and scalable synthetic route to produce Cu2–xS electrocatalysts, exhibiting hydrogen evolution rates that increase for ∼1 month of operation. Our Cu2–xS electrodes reach a state-of-the-art performance of ∼400 mA cm–2 at −1 V vs RHE under mild conditions (pH 8.6), with almost 100% Faradaic efficiency for hydrogen evolution. The rise in current density was found to scale with the electrode electrochemically active surface area. The increased performance of our Cu2–xS electrodes correlates with a decrease in the Tafel slope, while analyses by X-ray photoemission spectroscopy, operando X-ray diffraction, and in situ spectroelectrochemistry cooperatively revealed the Cu-centered nature of the catalytically active species. These results allowed us to increase fundamental understanding of heterogeneous electrocatalyst transformation and consequent structure–activity relationship. This facile synthesis of highly durable and efficient Cu2–xS electrocatalysts enables the development of competitive electrodes for hydrogen evolution under mild pH conditions.Funding for open access charge: CRUE-Universitat Jaume IICN2 acknowledges funding from Generalitat de Catalunya 2021SGR00457. This study is part of the Advanced Materials programme and supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1), Generalitat de Catalunya, and the Basque Government (grant IT1591-22). The authors thank the support from the projects (RED2022-134508-T, PID2020-116093RB-C41, PID2020-116093RB-C43, and PID2020-116093RB-C44) funded by MCIN/AEI/10.13039/501100011033/ and the project TED2021-129999A-C33 financed by MCIN/AEI/10.13039/501100011033 and European Union NextGenerationEU/PRTR. C.A.M. acknowledges funding from UJI postdoc fellowship POSDOC/2019/20, the Generalitat Valenciana for the APOSTD/2021/251 fellowship, and to MinCiencias Colombia through the Fondo Nacional de Financiamiento para la Ciencia, la Tecnología y la Innovación “Francisco José de Caldas”, call 848-2019. ICN2 is supported by the Severo Ochoa program from Spanish MCIN/AEI (Grant No.: CEX2021-001214-S) and is funded by the CERCA Programme/Generalitat de Catalunya. M.C.S. has received funding from the post-doctoral fellowship Juan de la Cierva Incorporation from MICINN (JCI-2019) and the Severo Ochoa programme. S.B. acknowledges grant RYC-2017-21931 funded by MCIN/AEI/10.13039/501100011033 and by ESF Investing in Your Future, EUR2020-112066 funded by MCIN/AEI /10.13039/501100011033 and by European Union NextGenerationEU/PRTR, and UPV/EHU project EHUrOPE19/01. J.R. acknowledges the Czech Science Foundation and funding from PIF outgoing project number 22-18079O

High risk for obstructive sleep apnea and other sleep disorders among overweight and obese pregnant women

Background: Obstructive sleep apnea (OSA), a common and serious disorder in which breathing repeatedly stops during sleep, is associated with excess weight and obesity. Little is known about the co-occurrence of OSA among pregnant women from low and middle-income countries. Methods: We examined the extent to which maternal pre-pregnancy overweight or obesity status are associated with high risk for OSA, poor sleep quality, and excessive daytime sleepiness in 1032 pregnant women in Lima, Peru. The Berlin questionnaire was used to identify women at high risk for OSA. The Pittsburgh Sleep Quality Index (PSQI) and Epworth Sleepiness Scale (ESS) were used to examine sleep quality and excessive daytime sleepiness, respectively. Multinomial logistic regression procedures were employed to estimate odds ratios (aOR) and 95 % confidence intervals (CI) adjusted for putative confounding factors. Results: Compared with lean women (<25 kg/m2), overweight women (25–29.9 kg/m2) had 3.69-fold higher odds of high risk for OSA (95 % CI 1.82–7.50). The corresponding aOR for obese women (≥30 kg/m2) was 13.23 (95 % CI: 6.25–28.01). Obese women, as compared with their lean counterparts had a 1.61-fold higher odds of poor sleep quality (95 % CI: 1.00–2.63). Conclusion: Overweight or obese pregnant women have increased odds of sleep disorders, particularly OSA. OSA screening and risk management may be indicated among pregnant women in low and middle income countries, particularly those undergoing rapid epidemiologic transitions characterized by increased prevalence of excessive adult weight gain