The density of states (DOS) of crystalline silicon changes with the introduction of dopants due to the formation of an impurity band and band tails. Until now, the DOS of undoped silicon has been used to model silicon devices, regardless of the doping level. This approximation may not be satisfactory for the emitter and back surface field regions of silicon solar cells. Therefore, we measured t...

Currently, no reliable noninvasive methods exist for monitoring the severity of in vivo cyanide (CN) toxicity, treatment, and resulting physiological changes. We developed a broadband diffuse optical spectroscopy (DOS) system to measure bulk tissue absorption and scattering. DOS was used to optically monitor CN toxicity and treatment with sodium nitrite (NaNO2). To perform experiments, the DOS ...

1PhD Professor, Department of Restorative Dentistry, São José dos Campos Dental School, UNESP, São José dos Campos, SP, Brazil. 2Chairman Professor, Department of Restorative Dentistry, Araraquara Dental School, UNESP, Araraquara, SP, Brazil. 3Chairman Professor, Department of Pathology, Bauru Dental School, University of São Paulo, USP, Bauru, SP, Brazil. 4Graduate student of Restorative Denti...

Wireless sensors are very small embedded devices with low memory, low computing power and low battery life. Various applications such as continuous connectivity, weather monitoring, industry and instantly -deployable communication for first responders and armed. These networks already consider environmental conditions, factory performance, and troop deployment, to name some applications. Wirele...

PURPOSE Diffuse optical spectroscopy (DOS) has the potential to enable monitoring of tumor response during chemotherapy, particularly in the early stages of treatment. This study aims to assess feasibility of DOS for monitoring treatment response in HER2-negative breast cancer patients receiving neoadjuvant chemotherapy (NAC) and compare DOS with tumor response assessment by MRI. EXPERIMENTAL...

Denial-of-service (DoS) attacks have become a major threat to current systems and networks in the Internet. Yet the existing infrastructure is rarely tested for potential damage caused by (D)DoS attacks because no method exist to audit a productive system without flooding and thus risking system outages and resulting losses. Having a method that does (D)DoS attack auditing without requiring the...

INTRODUCTION Destructive ocular surgery (DOS) means eye loss. An audit of its indications would be useful in reducing its incidence. OBJECTIVE To determine indications for destructive ocular surgeries. MATERIALS AND METHODS The case records (files) of all the patients who had DOS in a tertiary health facility in Nigeria from January 2004 to December 2011 were reviewed retrospectively. The i...

OBJECTIVE To better characterize cumulus-oocyte interactions during oocyte maturation and fertilization in the cat model. DESIGN Experimental in vitro study. SETTING Smithsonian Institution. ANIMAL(S) Domestic shorthair cats. INTERVENTION(S) Groups of denuded oocytes (DOs) and cumulus-oocyte complexes (COCs) were subjected to in vitro maturation (with or without FSH and LH, with or with...

Resumo: Muitas anomalias e doenças genéticas podem ser descobertas através da análise da forma e das características morfológicas dos cromossomos. Para alcançar este objetivo, geralmente constrói-se o cariótipo, a partir de uma fotografia obtida através de um microscópio, através da organização e ordenação dos cromossomos de uma célula humana de acordo com o seu tamanho. Apesar dos grandes avan...