Results 71 to 80 of about 408,938 (318)

Gestão de risco e os impactos da instrução normativa CVM nº 550: análise empírica Risk management and the effects of CVM instruction 550: empirical analysis

Revista Contabilidade & Finanças, 2010
Este trabalho analisa o efeito da instrução normativa CVM 550 sobre a utilização de derivativos e, consequentemente, a gestão de risco das companhias abertas brasileiras.
Leonardo Andrade de Almeida Burlá, Edson Daniel Lopes Gonçalves   +1 more
doaj   +1 more source

Charge Generation and Recombination Pathways in All‐Polymer Bulk Heterojunction Solar Cells

Advanced Functional Materials, EarlyView.
Multimodal spectroscopy and device analysis reveal how field‐dependent charge generation, transport limitations, and non‐geminate recombination govern performance losses in all polymer solar cells. The results identify the key processes controlling charge extraction and recombination, providing insights for the design of more efficient all‐polymer ...
Shahidul Alam, Wejdan Althobaiti, Safakath Karuthedath, Christopher E. Petoukhoff, Amr Dahman, Khawla Alkhezaim, Oleksandr Matiash, José P. Jurado, Mariia Ferree, Ning Su, Jacob Blaskovits, Denis Andrienko, Vladimir Dyakonov, Andreas Sperlich, Vojtech Nádaždy, Tobin J. Marks, Antonio Facchetti, Frédéric Laquai   +17 more
wiley   +1 more source

Analysis of Soil Subscription on Soil Lack Combination of PVD and PHD With Analytical and Numerical Methods Using 3D Plaxis in STA 103 + 550 Construction of High Click Toll Road Range, Stage 1

, 2022
Ardi I. P. Sagala
openalex   +2 more sources

Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures

Advanced Functional Materials, EarlyView.
Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko, Hyun Ju Lee, Jeong Kyu Lee, Han Sol Kim, Min Seok Kim, Quynh Anh T. Nguyen, Sonny H. Rhim, Young Keun Kim   +7 more
wiley   +1 more source

Si‐Doped Nanocrystalline Diamond as Highly Sensitive Luminescence Thermometer for the Physiological Temperature Range

Advanced Functional Materials, EarlyView.
In this work, diamonds with negative charged silicon‐vacancy (SiV−) centers have been designed for use as thermometers in biomedical applications. Multiparametric analysis of the emission characteristics of the SiV− centers provides extraordinary sensitivity for temperature detection in the physiological temperature range.
María Gragera, Iván Carrillo‐Berdugo, Josue Millán, Paulius Pobedinskas, Antonio Freire, Ken Haenen, Javier Navas   +6 more
wiley   +1 more source

White piedra on pediatric scalp: A case report

IDCases
This case report describes a rare fungal infection, piedra alba, in a 5-year-old female initially misdiagnosed. Treatment with 2 % ketoconazole shampoo led to significant regression within a week, without the need for hair cutting.
Julia Brigagão de Carvalho Sugai, Nayara Pelizaro Di Rito, Alexandre Lourenço, Ronei Luciano Mamoni, Ana Carolina Da Mota Falleiros, Celia Antonia Xavier de Moraes Alves, Glaucos Ricardo Paraluppi   +6 more
doaj   +1 more source

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Paper 550

Student response paper submitted for course ACA-401/ACA-401D.
openaire   +1 more source

Sulfur‐Free Ultrahigh‐Refractive‐Index Polymers Enabled by Densely Packed Oxygen‐Bridged Dibenzofuran‐Cardo Architectures

Advanced Functional Materials, EarlyView.
A new class of sulfur‐free, oxygen‐bridged dibenzofuran‐based polymers is developed for ultrahigh‐refractive‐index applications. The rigid π‐extended architecture and enhanced molecular polarizability enable exceptional optical performance, combining refractive indices up to 1.848 with high Abbe numbers and full visible transparency. This work offers a
Hend A. Hegazy, Gyeongsoo Kim, Sooyoung Lee, Mohamed R. Elmasry, Youn‐Chul Kim, Changsik Song   +5 more
wiley   +1 more source

Unilateral vulvar hematoma after laparoscopic detorsion of the ipsilateral ovary following oocyte retrieval for IVF: A case report and review of anatomy and surgical planning

Case Reports in Women's Health
A case is reported of delayed ovarian torsion following controlled ovarian hyperstimulation and uncomplicated oocyte retrieval, further complicated by post-laparoscopic ipsilateral vulvar hematoma.A 37-year-old nulliparous woman with a history of ...
Rachel Linfield, Pip Lipkin, Jenna Reich, Nirali Jain, Jennifer Blakemore   +4 more
doaj   +1 more source