Numerical Study of the Thermal Efficiency of a School Building with Complex Topology for Different Orientations

In this work a numerical model that simulates the thermal behavior of a building with complex topology and evaluates the indoor thermal and air quality, in transient conditions, is used for a school building thermal project. The program calculates the building surfaces solar radiation field, the building's temperatures, the internal environmental variables, and the occupant's comfort levels. Initially, after the numerical model is validated, the software is used to evaluate the school building's thermal response for four different orientations, either in winter or summer conditions. The work then aims to identify uncomfortable spaces in order to propose, as an example, several solutions that could be introduced for each orientation, that would improve the thermal comfort and air quality levels to which the occupants are subjected, and decrease the building's energy consumption levels. The information obtained from this study could be used to help a designer choose which thermal systems and solutions function best for a preferred school building orientation

On a Frobenius Problem for Polynomials

We extend the famous diophantine Frobenius problem to a ring of polynomials over a field~k. Similar to the classical problem we show that the n = 2 case of the Frobenius problem for polynomials is easy to solve. In addition, we translate a few results from the Frobenius problem over ℤ to k[t] and give an algorithm to solve the Frobenius problem for polynomials over a field k of sufficiently large size

Sensitivity of EAS measurements to the energy spectrum of muons

We have studied how the energy spectrum of muons at production affects some of the most common measurements related to muons in extensive air shower studies, namely, the number of muons at the ground, the slope of the lateral distribution of muons, the apparent muon production depth, and the arrival time delay of muons at ground. We found that by changing the energy spectrum by an amount consistent with the difference between current models (namely EPOS-LHC and QGSJ et -II.04), the muon surface density at ground increases 5% at 20° zenith angle and 17% at 60° zenith angle. This effect introduces a zenith angle dependence on the reconstructed number of muons which might be experimentally observed. The maximum of the muon production depth distribution at 40° increases ∼ 10 g/cm 2 and ∼ 0 g/cm 2 at 60°, which, from pure geometrical considerations, increases the arrival time delay of muons. There is an extra contribution to the delay due to the subluminal velocities of muons of the order of ∼ 3 ns at all zenith angles. Finally, changes introduced in the logarithmic slope of the lateral density function are less than 2%.Peer Reviewe

Efeito de variáveis meteorológicas sobre a evapotranspiração de referência em uma região de clima tropical úmido do Brasil.

A evapotranspiração de referência (ETo) é função de diversas variáveis meteorológicas, como radiação solar, temperatura e umidade do ar além da velocidade do vento. Conforme as condições climáticas locais e a época do ano, essas variáveis têm importância diferenciada na estimativa da ETo. A região de Jales é uma das principais áreas vitícolas do Estado de São Paulo, Brasil. Buscando ampliar o conhecimento relacionado com a determinação das necessidades hídricas da viticultura, o presente trabalho teve como objetivo estudar o efeito das diferentes variáveis meteorológicas sobre a ETo durante o período chuvoso na região

The association between stigmatizing attitudes towards depression and help seeking attitudes in college students

Depression stigma has been considered a significant barrier to treatment and rehabilitation. This study aimed to understand the effects of gender, previous mental health care, and symptomatology on depression stigma and analyze the impact of depression stigma on help-seeking attitudes. A total of 969 students with a mean age of 18.87 (SD = 1.49) were included in this study and completed the Depression Stigma Scale, the Attitude Toward Seeking Professional Psychological Help, the Patient Health Questionnaire-4 questionnaire, and a socio-demographic questionnaire. We analyzed data using SPSS 24.0, with a 95% confidence interval. Participants came from all University schools, and 64.6% were women. Personal stigma and help-seeking attitudes were affected by gender (β(male) = 5.65, CI = 4.07, 7.25) and previous access to mental healthcare services (β(previous help) = -4.35, CI = -5.89, -2.82). Perceived depression stigma was affected gender (β(male) = -2.67, CI = -5.00, -0.34) and symptomatology (β(no symptomatology) = -3.29, CI = -6.09, -0.49). Personal (r = -0.42, p<0.01) and perceived (r = 0.10, p<0.01) depression stigma correlated with help-seeking attitudes, but we detected no direct symptomatology effect on help-seeking attitudes. Personal depression stigma significantly affected help-seeking attitudes (β = -0.15, CI = -0.17, -0.12). Promoting literacy may decrease personal depression stigma and increase professional help-seeking attitudes and behaviors. © 2022 Conceição et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.This study was funded by the Center for Psychology at the University of Porto, Portuguese Science Foundation CPUP FCT (grant number UIDB/00050/2020) awarded to IR

The muonic longitudinal shower profiles at production

In this paper the longitudinal profile of muon production along the shower axis is studied. The characteristics of this distribution is investigated for different primary masses, zenith angles, primary energies, and different high energy hadronic models. It is found that the shape of this distribution displays universal features similarly to what is known for the electromagnetic profile. The relation between the muon production distribution and the longitudinal electromagnetic evolution is also discussed