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Articles Related to Light

Arduino Use in Education Systems to Monitor the Noise in Schools Classrooms in Qatar

Many students suffer from the sound of air conditioners and others suffer from light intensity in classroom. The air conditioners and light intensity affect the efficiency and quality of education. Urduino is used a lot in industrial areas because there is a lot of noise pollution. Additionally, it can be used in high traffic regions as well as to monitor noise in different parts of the city. It can also be used in education systems to monitor the noise in classrooms. The purpose of this study was to monitor the noise in classrooms by Arduino Nano that interfaced with a Sound Sensor. A study was conducted to determine the ambient sound and light intensity of a convenience sample at school during September, October and November 2021. Six classrooms’ samples corresponding to hourly fractions of the average sample broken down into the following periods: from 10:00 am to 2:50 pm. Sound levels were measured to assess acoustic conditions. Light levels were measured to assess light conditions. Each classroom from 1 to 6 was tested the ambient sound intensity and light using an Arduino. Noise varies with time and place. The sound level varies between 27.5 dB and 65 dB with the average sound level in the classrooms was 43.53 dB greater than recommended sound level limit of 35 dB. The light intensity varies between 62.50 lux and 208.5 lux. The average light levels around the recommended 300 lux. Everyone emphasized the quality of using the device to measure the noise level in the classroom. The use of the device leads to monitor the noise of the air conditioner or replacing it. The device has the potential to significantly change the noise pollution monitoring system at school. Researchers recommend all students and authorities the importance of the Arduino.
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Chronic Exposure to Artificial Light Spectra at night alter Neurobehaviour and Neurotransmitter levels in Albino Rats

Artificial light at night has been reported to have significant effects on the physiology and behaviour of animals by its impact on their circadian rhythm. This study investigated the effect of artificial light spectra at night on neurotransmitter activities and neurobehavioural changes in the albino rat. Blue (470 nm) and red (665 nm) lights were used; with ambient light and darkness serving as positive and negative controls, respectively. The rats were exposed to daylight from 6 am to 6 pm and 12 hours of artificial light (6 pm - 6 am) daily (light sources were 13 Watt compact florescent electric bulbs). Neurobehavioural outcomes were measured using the Open Field Test (OFT) and Morris Water Maze (MWM).
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Development of a Global Ergonomic Index Based on MSDs Risks, Psycho-Social Factors and the Work Environment: Case of a Clothing Company

The clothing industry is a field full of occupational diseases such as MSDs which are widely recognized in the wrists, hands, elbows, neck and lower back due to poor posture. Several studies have emphasized the importance of preventive actions to reduce the risk of occupational diseases.
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Dermatologists in UAE - Delighted or Dismayed? Elements Linked with Occupational Satisfaction Levels

To assess the level of job satisfaction and to identify factors affecting job satisfaction in the practice of Dermatologists in the United Arab Emirates
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Dawn of the Biofilm Disease: Highlights about Biofilm in Bone and Joint & Prosthetic Joint Infections Pathogenesis, Diagnosis and Treatment

I present some key considerations of the biofilm disease as part of two complex pathologies such as bone and joint infections and prosthetic joint infections, taking into account the bacterial pathogenic factors to understand the particular nature of these infections, and to achieve an accurate diagnosis and management beyond the antimicrobial therapy. I mention some personal experience of many years in the medical microbiology laboratory and next to the patient’s bed.
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Periodic Micro Hole Texturing with Metal Assisted Chemical Etching for Solar Cell Applications: Dependence of Etch Rate on Orientation

AuthorSurface texturing is an indispensable process for solar cell fabrication. The interaction of the surface with the incoming sunlight is controlled by texturing in such a way that the absorption is maximized through multiple interactions. Wet and dry etching techniques have been used to create textured surfaces on solar cells. Other than standard alkaline texturing used by the industry, metal assisted etching (MAE) appears to be a promising texturing technique with greater potential application for multi-crystalline solar cell fabrication. It is possible to achieve both random and periodic patterns with MAE which is relatively cheaper than dry plasma etching techniques. In this study, periodic hole patterns with micron sized diameters and periodicity were aimed to be achieved.
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Identification of Pyrrolidinophenone-type Designer Drugs by Gas Chromatography/ Time-of-Flight Mass Spectrometry

Use of gas chromatography (GC) combined with time-of –flight mass spectrometry (TOFMS) with soft ionization generated with three different plasma gases (i.e., Xe, Kr, Ar) was evaluated for the identification of several pyrrolidinophenone-type designer drugs that are commercially available.
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Targeted Approach for Prostate Cancer Treatment: Synthesis and Characterization of Docetaxel-Loaded Perfluorocarbon Nanodroplets

The purpose of this study is to synthesize and characterize nanodroplets, loaded with docetaxel for treatment of prostate cancer under MR-guided focused ultrasound. Water insoluble docetaxel encapsulated in nanodroplets is expected to be delivered into tumors with greater efficiency while minimizing drug related systemic toxicities when used in combination with focused ultrasound. The sequence of our studies toward development and characterization of docetaxel-loaded nanodroplets is as follows. First, we developed methods for synthesis of ultrasound-responsive, docetaxel-loaded nanodroplets (Doc-nd) by a solid dispersion technique. Secondly, we characterized Doc-nd by its morphology and size distributions using a dynamic light scattering (DLS) method.
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Fingerprint Recovery from Human Skin by Finger Powder

An examination experiment has been carried out to investigate whether fingerprint powder and lifting technique can recover and transfer latent fingerprints from human skin surfaces of dead bodies. For recovery Swedish Black powder and for transfer White Fingerprint Gelatine were used.
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Flexural Strength of Provisional Crown and Fixed Partial Denture Resins both with and without Reinforced Fiber

Fabrication of provisional restorations is an important procedure in fixed prosthodontics. Provisional restorations must satisfy the requirements of pulpal protection, positional stability, occlusal function, ability to be cleansed; margin accuracy, wear resistance, strength, and esthetics.
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Identification of Designer Drugs using Gas Chromatography High-Resolution Mass Spectrometry and a Soft-Ionization Source

Gas chromatography-mass spectrometry (GC-MS) with electron ionization (EI) or chemical ionization (in positive or negative mode) plays an important role in the forensic analysis of designer drugs.
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Topical Delivery System for Phytochemicals: Capsaicin and Capsicum Tincture

Capsaicin, an active ingredient of Capsicum fruit, is currently undergoing “revival” in the clinical management of pain. However, the choice of its formulation is rather limited to the use of “old-fashioned” tinctures and recently the patches. In an attempt to improve the therapeutic outcome and develop its skin-friendly formulation, we prepared the vesicle-based drug delivery system with capsaicin.
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Improvement in Latent Fingermark Detection on Thermal Paper using 5,6-Dimethoxy-1,2-indandione/PVP

A new method for improvement of 1,2-indandione-treated latent fingermarks on thermal paper will be described in this paper. Treatment with conventional techniques like ninhydrin in petroleum ether or DFO solution produces a black color on the thermosensitive side of thermal paper.
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Toxicological Screening and Quantitation Using Liquid Chromatography/Time-of-Flight Mass Spectrometry

In recent years, an increasing number of new designer-drugs have increased the demands for general toxicological screening [1]. Limited screening based on immunoassays is commonly used in clinical toxicology, whereas more comprehensive approaches are common in forensic toxicology such as screening based on Gas or Liquid Chromatography (GC or LC) approaches.
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Quantitative Analysis of 30 Drugs in Whole Blood by SPE and UHPLC-TOFMS

An Ultra-High Pressure Liquid Chromatography Time-of-Flight Mass Spectrometry (UHPLC-TOF-MS) method for quantitative analysis of 30 drugs in whole blood was developed and validated. The method was used for screening and quantification of common drugs and drugs of abuse in whole blood received from autopsy cases and living persons.
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Editorial Board Members Related to Light

Jeffrey E. Lee

Assistant Professor
Laboratory Medicine & Pathobiology
University of Toronto
Canada

Marisa Di Sabatino Lundberg

Associate Professor
Department of Materials Science and Engineering
Norwegian University of Science and Technology
Norway

Scott Asbill

Professor of Pharmaceutics
College of Pharmacy & Health Sciences
Campbell University
United States

SHANKAR M. L. SASTRY

Professor
Department of Mechanical Engineering and Materials Science
Washington University, St. Louis
United States

Christophe P. Ribelayga

Associate Professor
Ophthalmology & Visual Science
The University of Texas Health Science Center
USA

AYMAN ELTAIRY MAHMOUD MAHDY

Associate Professor
Division of Urology
University of Cincinnati
United States

Cecilia Young

Consultant Physician Pharmacist People Health Magazine
Hong Kong

Frank Portugal

Associate Professor
Department of Biology
The Catholic University of America
United States

FRANK SHI

Professor
Department of Chemical Engineering and Materials Science
University of California, Irvine
United States

Nathan Newman

Associate Professor of Athletic Training
Athletic Training Program Director
Drake University
USA
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