The Effect of Lockdowns on the Status of Women in the World

Coronavirus disease (COVID-19) is an infectious respiratory illness that causes moderate to severe symptoms that can be fatal to older people or those with other underlying health concerns. Considered a global pandemic, this disease spreads rapidly across the world, calling for a need for the implementation of lockdowns. This study examines the effects of lockdowns on joblessness among women, controlling for household conditions, namely, perceived household responsibility, hours allotted for household chores, and safety at home. Data for lockdowns were sourced from Google’s Community Mobility reports, whereas joblessness among women and household conditions were sourced from Facebook’s Survey on Gender Equality at Home. The findings suggest that lockdowns positively and significantly affect joblessness among women and that household conditions (hours allotted for household chores and safety at home) also have the same effect, except for perceived household responsibility. The implications of these results are discussed in detail throughout the study

Partial nutrient balances from agronomic and economic viewpoints: the case of corn cultivation in the acid upland soils of Isabela, the Philippines

Soil propertiesMaizeEconomic aspects

Non-Hamiltonian dynamics in optical microcavities resulting from wave-inspired corrections to geometric optics

We introduce and investigate billiard systems with an adjusted ray dynamics that accounts for modifications of the conventional reflection of rays due to universal wave effects. We show that even small modifications of the specular reflection law have dramatic consequences on the phase space of classical billiards. These include the creation of regions of non-Hamiltonian dynamics, the breakdown of symmetries, and changes in the stability and morphology of periodic orbits. Focusing on optical microcavities, we show that our adjusted dynamics provides the missing ray counterpart to previously observed wave phenomena and we describe how to observe its signatures in experiments. Our findings also apply to acoustic and ultrasound waves and are important in all situations where wavelengths are comparable to system sizes, an increasingly likely situation considering the systematic reduction of the size of electronic and photonic devices.Comment: 6 pages, 4 figures, final published versio

Magnetotunneling Between Two-dimensional Electron Gases in InAs-AlSb-GaSb Heterostructures

We have observed that the tunneling magnetoconductance between two-dimensional (2D) electron gases formed at nominally identical InAs-AlSb interfaces most often exhibits two sets of Shubnikov-de Haas oscillations with almost the same frequency. This result is explained quantitatively with a model of the conductance in which the 2D gases have different densities and can tunnel between Landau levels with different quantum indices. When the epitaxial growth conditions of the interfaces are optimized, the zero-bias magnetoconductance shows a single set of oscillations, thus proving that the asymmetry between the two electron gases can be eliminated.Comment: RevTeX format including 4 figures; submit for publicatio

First record of the marine snail Xenophora crispa (Gastropoda: Xenophoridae) from Madeira Island (Northeastern Atlantic Ocean)

The marine snail Xenophora crispa (d' Orbigny, 1847) is recorded for the first time in Madeira Island (NE Atlantic). This species is currently distributed throughout the central and western Mediterranean, western Atlantic from France (Gulf of Biscay) to North Africa (up to Morocco), including the Archipelagos of the Azores, Canary Islands, and now Madeira.PR is funded by the project (UIDB/04292/2020) granted to MARE UI&I and partially funded by the Project Observatório Oceânico da Madeira-OOM (M1420-01-0145-FEDER-000001), co-financed by the Madeira Regional Operational Programme (Madeira 14-20), under the Portugal 2020 strategy, through the European Regional Development Fund (ERDF). JCC was funded by national funds through FCT- Fundação para a Ciência e a Tecnologia, I.P., under the Scientific Employment Stimulus Institutional Call (CEECINST/00098/2018). JGM was supported by a post-doctoral research fellowship by Agência Regional para o Desenvolvimento da Investigação, Tecnologia e Inovação (ARDITI-M1420-09-5369-FSE-000002). Finally, this study had the support of Fundação para a Ciência e Tecnologia (FCT), through the strategic project (UIDB/04292/2020) granted to MARE UI&I.info:eu-repo/semantics/publishedVersio

CASR (Calcium-Sensing Receptor)

Review on CASR, with data on DNA/RNA, on the protein encoded and where the gene is implicated