Results 31 to 40 of about 14,932 (171)

Entre o funcional e o lúdico: a camisinha nas campanhas de prevenção da aids

Interface: Comunicação, Saúde, Educação, 2000
Este trabalho parte da idéia da existência de impedimentos ao uso da camisinha. Abordou-se alguns desses impedimentos que são as significações marginais como a infidelidade e a promiscuidade que a camisinha encarna.
Mônica Benfica Marinho
doaj   +1 more source

Photoactivation‐Enabled Tunable Room‐Temperature Phosphorescence and Thermally Activated Delayed Fluorescence in Crystalline Materials

Advanced Science, EarlyView.
This work is the first to demonstrate the regulation of photoactivated room‐temperature phosphorescence (RTP) and thermally activated delayed fluorescence (TADF) in crystalline materials without any pretreatment. Furthermore, we reveal the underlying mechanisms by uncovering the role of host‐guest energy level alignment, exciton lifetime, crystallinity,
Lisha Zhang, Yongping Wu, Ihor Sahalianov, Lei Zhou, Glib Baryshnikov, Xiang Ma   +5 more
wiley   +1 more source

Conocimiento y uso del condón masculino en adolescentes. Colegio Emblemático “San Ramón” – La Recoleta. Cajamarca. 2019 [PDF]

, 2020
La presente investigación tuvo como objetivo determinar la relación entre el conocimiento y uso del condón masculino en adolescentes. Colegio Emblemático “San Ramón” – La Recoleta. Cajamarca, 2019.
Villanueva Huaripata, Jovana Elizeth
core  

Strongly Anisotropic and Rapid Excitons Transport in Organic Crystal

Advanced Science, EarlyView.
The increased exciton diffusion length is beneficial to simplify device design and enhance photoelectric conversion efficiency. But the isotropic exciton diffusion may lead to reduced transport efficiency directed to the charge separation site. Here we have successfully achieved strongly anisotropic and rapid excitons transport in thienopyrrole ...
Minjie Li, Zheng‐Fei Liu, Jiajia Ma, Dayujia Huo, Ganglong Cui, Qing‐Zheng Yang, Yan Wan   +6 more
wiley   +1 more source

SEC Mediates m6A Deposition and Transcription Pause Release to Drive Cell Identity Transition

Advanced Science, EarlyView.
The SEC promotes cell identity transitions by facilitating transcription pause release at key identity‐associated genes, including Klf4 and Myc during iPSC reprogramming and Nes and Tubb3 during ESC‐to‐neuroectodermal differentiation. During early iPSC reprogramming, this function additionally involves cooperation with METTL3‐associated m6A regulation.
Zhijing Zhang, Jingyi Xu, Yonghong Wu, Yitong Qu, Xinglin Hu, Yuchen Sun, Yanshuang Wu, Zhonghua Liu, Jiaqiang Wang, Lei Lei   +9 more
wiley   +1 more source

Prediction of experimental excited‐state absorption spectra by using vibronic transition calculations: Its practical application to a π‐conjugated molecule

Bulletin of the Korean Chemical Society, EarlyView.
Excited‐state absorption (ESA) spectra are notoriously hard to compute. We show that routine DFT and TDDFT vibronic transition calculations reproduce the vibronic band shapes and positions of azulene's experimental ESA spectrum, providing a practical route to assign ESA bands to specific electronic transitions and vibrational modes.
Joonyoung F. Joung, Sungnam Park
wiley   +1 more source

Salud sexual y reproductiva en población adolescente y adulta en México, 2022

Salud Pública de México, 2023
Objetivo. Caracterizar la situación de la salud sexual y reproductiva (SSR) en población adolescente (10-19) y adulta (20-49). Material y métodos. Utilizando la Encuesta Nacional de Salud y Nutrición 2022, se estimaron prevalencias e intervalos de ...
Celia Hubert López, Leticia Suárez-López, Elvia de la Vara-Salazar, Aremis Villalobos   +3 more
doaj   +1 more source

Is There a Difference in Occurrence of Complications Between Adults With Hemoglobin SS and Hemoglobin SC Disease: An Extended Systematic Review. [PDF]

Eur J Haematol
ABSTRACT Sickle cell disease (SCD) is characterized by both acute and chronic complications. The clinical manifestation of these complications differs between genotypes. Given the large amount of research already published, this systematic review aims to offer a complete overview of types of sickle cell complications between adults in the most common ...
van der Meer M, Velsink K, Tong WH, Schoones JW.   +3 more
europepmc   +2 more sources

Modular One‐Pot Access to π‐Expanded Tetrakis(Phenothiazinyl)‐Silanes With Broadly Tunable Redox and Emission Properties

Chemistry – A European Journal, EarlyView.
A library of 21 tetrakis(phenothiazinyl)‐substituted silanes with broadly variable substituent decoration, which are fully reversible multistage redox systems with intense tunable emission from deep blue to yellow–green (441–533 nm), was rapidly synthesized by bromine–lithium exchange/borylation–Suzuki coupling of tetrakis(4‐bromophenyl)silane or by ...
Thomas P. M. Merke, Lysander Presser, Leonard Karl, Christian Ganter, Thomas J. J. Müller   +4 more
wiley   +1 more source

Autoeficacia del uso del condón en varones de nivel secundario [PDF]

, 2016
Objetivo: determinar la autoeficacia del uso del condón masculino en varones escolares. Material y método: estudio observacional descriptivo de corte transversal, realizado en el mes de diciembre del año 2015, la muestra de estudio estuvo conformada por ...
Espinoza Hoyos, Paola Cristina de Jesús, Chiong Carrión, Isabel Kam Ling   +1 more
core