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https://www.readbyqxmd.com/read/28524078/measuring-dynamic-signals-with-direct-sensor-to-microcontroller-interfaces-applied-to-a-magnetoresistive-sensor
#1
Ernesto Sifuentes, Rafael Gonzalez-Landaeta, Juan Cota-Ruiz, Ferran Reverter
This paper evaluates the performance of direct interface circuits (DIC), where the sensor is directly connected to a microcontroller, when a resistive sensor subjected to dynamic changes is measured. The theoretical analysis provides guidelines for the selection of the components taking into account both the desired resolution and the bandwidth of the input signal. Such an analysis reveals that there is a trade-off between the sampling frequency and the resolution of the measurement, and this depends on the selected value of the capacitor that forms the RC circuit together with the sensor resistance...
May 18, 2017: Sensors
https://www.readbyqxmd.com/read/28508405/detection-of-cytological-changes-in-oral-mucosa-among-users-of-smokeless-tobacco-shamma-in-the-ksa
#2
Eid I Brima
BACKGROUND AND AIM: Smokeless tobacco (ST) use is a major cause of cytological changes in the oral mucosa. ST products, such as shamma, which is prevalent in southern Saudi Arabia, raise concerns about the adverse health effects among its users. We evaluated the cytological changes in the oral mucosa of users and nonusers of shamma in the city of Najran, using Papanicolaou staining. MATERIALS AND METHODS: We designed questionnaires and consent forms for this study that were administered to a total of 397 participants, comprising 250 nonusers of shamma (controls) and 147 shamma users (cases)...
May 15, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28497533/the-saudi-national-mental-health-survey-methodological-and-logistical-challenges-from-the-pilot-study
#3
Mona Shahab, Feda Al-Tuwaijri, Lisa Bilal, Sanaa Hyder, Abdulhameed Abdullah Al-Habeeb, Abdullah Al-Subaie, Zeina Mneimneh, Beth-Ellen Pennell, Nancy Sampson, Ronald C Kessler, Yasmin Altwaijri
Several challenges exist in carrying out nation-wide epidemiological surveys in the Kingdom of Saudi Arabia (KSA) due to the unique characteristics of its population. The objectives of this report are to review these challenges and the lessons learnt about best practices in meeting these challenges from the extensive piloting of the Saudi National Mental Health Survey (SNMHS), which is being carried out as part of the World Mental Health (WMH) Survey Initiative. We focus on challenges involving sample design, instrumentation, and data collection procedures...
May 12, 2017: International Journal of Methods in Psychiatric Research
https://www.readbyqxmd.com/read/28478775/serological-evidence-of-coronavirus-infections-in-native-hamadryas-baboons-papio-hamadryas-hamadryas-of-the-kingdom-of-saudi-arabia
#4
A O Olarinmoye, B O Olugasa, H Niphuis, R V Herwijnen, E Verschoor, A Boug, O O Ishola, H Buitendijk, Z Fagrouch, K Al-Hezaimi
The hamadryas baboon (Papio hamadryas hamadryas) is the only indigenous species of non-human primates (NHP) found in the Kingdom of Saudi Arabia (KSA). There are no peer-reviewed publications on viral infections of the baboons of KSA. Apart from camels, other animals are likely sources of the novel Middle East Respiratory Syndrome coronavirus (MERSCoV) for humans. We investigated evidence of highly pathogenic coronavirus infections including MERSCoV in a large group of commensal baboons accompanied by feral dogs, on the outskirts of Ta'if city, KSA, in February 2013...
May 8, 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28471934/development-of-a-quality-improvement-curriculum-in-physician-assistant-studies
#5
Tiffany B Kindratt, Venetia L Orcutt
PURPOSE: The purpose of this project was to develop and evaluate a curriculum for physician assistant (PA) students addressing knowledge, skills, and attitudes (KSA) toward quality improvement (QI). METHODS: Students (N = 77) completed a pretest rating their KSA. A curriculum was developed to improve KSA among didactic and clinical students. Two department-wide QI projects were developed for student participation. Students completed a posttest after completing curriculum components and changes in KSA had been measured...
May 1, 2017: Journal of Physician Assistant Education
https://www.readbyqxmd.com/read/28435371/attitude-and-knowledge-of-isolation-in-operative-field-among-undergraduate-dental-students
#6
Fuad Abdo Al-Sabri, Ahmed Mohamed Elmarakby, Ahmed Mohammed Hassan
OBJECTIVE: The purpose of this study was to evaluate the general attitude of undergraduate dental students toward rubber dam use, specifically focusing on operative procedures before starting to serve community. METHODS: Questionnaires were distributed to undergraduate clinical years' students of two private colleges; Al-Farabi Dental College, Riyadh, KSA and Buraidah Private Colleges, Qassim, KSA. Questions were asked about areas where the students used rubber dam in operative procedures, in which types of caries classes, and in which type of restoration they frequently used the rubber dam...
January 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/28413436/predominance-and-association-risk-of-blastocystis-hominis-subtype-i-in-colorectal-cancer-a-case-control-study
#7
Amr Mohamed Mohamed, Mona Abdelfattah Ahmed, Sabah Abdelghany Ahmed, Sherif Ahmed Al-Semany, Saad Saed Alghamdi, Dina Abdulla Zaglool
BACKGROUND: Blastocystis, a genetically diverse intestinal parasite with controversial pathogenic potential, has increasingly been incriminated for diarrheal illness in immunocompromised individuals including colorectal cancer (CRC) patients. The aim of the current study was to assess the possible association between Blastocystis infection and CRC condition in Makkah, Saudi Arabia (KSA). METHODS: Stool samples were collected from 80 non-cancer (NC) and 138 cancer subjects including 74 CRC patients and 64 patients with other cancers outside gastrointestinal tract (COGT)...
2017: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/28405552/over-the-counter-and-prescription-medications-for-acne-a-cross-sectional-survey-in-a-sample-of-university-students-in-saudi-arabia
#8
Mohja D Alshehri, Abdulsalam T Almutairi, Asma M Alomran, Batool A Alrashed, Feroze Kaliyadan
INTRODUCTION AND BACKGROUND: Acne is a very common dermatological condition found among the adolescent population in Saudi Arabia. Many patients with acne try various forms of self-medication, over the counter medicines (OTC), and prescription medicines for the same. MATERIALS AND METHODS: This was a cross-sectional study among university students in the Kingdom of Saudi Arabia (KSA). A validated questionnaire was distributed to a convenience sample of university students to evaluate their knowledge and attitudes towards OTC (mainly) as well as prescription medicine for acne...
March 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/28397948/retrospective-analysis-of-biopsied-oral-and-maxillofacial-lesions-in-south-western-saudi-arabia
#9
Sanaa M Saleh, Ali M Idris, Nandimandalam V Vani, Faisal M Tubaigy, Fahd A Alharbi, Abubakr A Sharwani, Nabil T Mikhail, Saman Warnakulasuriya
To report the prevalence and types of biopsied oral and maxillofacial lesions (OMLs) in South-Western (Jazan Province) region, , Kingdom of Saudi Arabia (KSA). Methods: This retrospective study was based on the retrieval of clinicopathological data for a period of 6 years between January 2009 and December 2014. These  data were obtained between October 2014 and June 2015 from the histopathology records of King Fahad Central Hospital, Jazan, KSA, which is the only referral center for biopsy services. Results: Out of the 32149 biopsies received, 714 (2...
April 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28397947/chronic-diseases-among-vitiligo-patients-a-case-control-study
#10
Abdullah O Al Houssien, Rana O Al Houssien, Waleed Al Ajroush, Hassan S Al Kahtani
To identify the proportion and risk of chronic diseases in vitiligo patients in a tertiary hospital in Riyadh, Kingdom of Saudi Arabia (KSA). Methods: A retrospective case-control study included 61 vitiligo patients and 61 normal non-dermatology controls in King Abdulaziz Medical City, Riyadh, KSA between January and September 2016. Age, gender and  co-morbid diseases including hypertension, diabetes, dyslipidemia, obesity and hypothyroidism were retrieved from participants' charts and medical records. Proportion and mean were used to describe the variables, and odds ratio (OR) was used to test the data...
April 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28390556/an-investigation-of-saudi-arabian-mr-radiographers-knowledge-and%C3%A2-confidence-in-relation-to-mr-image-quality-related-errors
#11
W Alsharif, M Davis, A McGee, L Rainford
OBJECTIVE: To investigate MR radiographers' current knowledge base and confidence level in relation to quality-related errors within MR images. METHOD: Thirty-five MR radiographers within 16 MRI departments in the Kingdom of Saudi Arabia (KSA) independently reviewed a prepared set of 25 MR images, naming the error, specifying the error-correction strategy, scoring how confident they were in recognising this error and suggesting a correction strategy by using a scale of 1-100...
May 2017: Radiography
https://www.readbyqxmd.com/read/28364266/a-study-on-some-reproductive-disorders-in-dromedary-camel-herds-in-saudi-arabia-with-special-references-to-uterine-infections-and-abortion
#12
Abdelmalik I Khalafalla, Marzook M Al Eknah, Mahmoud Abdelaziz, Ibrahim M Ghoneim
Dromedary camels complaining from conception failure or abortion were investigated and their herders interviewed in Al Ahsa province, Kingdom of Saudi Arabia (KSA) during 2013 and 2015. The most important reproductive disorder according to the responders is uterine infection (60.2%) followed by obesity (22.3%) then physiological conditions (hormonal disturbances; 7.8%), adhesions (3.9%) and repeat breeders (2.9%). Of the camel herders, 78.6% reported previous occurrence of abortion in their herds and 46% reported abortion cases in the last season (2015/2016), while 21...
March 31, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28344409/outbreak-of-foot-and-mouth-disease-and-peste-des-petits-ruminants-in-sheep-flock-imported-for-immediate-slaughter-in-riyadh
#13
M A Mahmoud, S A Galbat
AIM: To detect and identify the causative agent or agents of the following clinical symptoms which were fever, lack of appetite, salivation, vesiculation, erosions of the buccal mucosa, nose, and feet. The signs vary from mild to severe. The mortality rate of the disease is high. The morbidity rate reaches up to 100%. Sheep also show bloody diarrhea and rapid respiration. Sheep flock resident in El-Kharje Governorate. MATERIALS AND METHODS: A total of 50 serum samples and 50 buffy coat samples were collected from Marino sheep flock suffered from high mortalities, fever, lameness, diarrhea, stomatitis, and respiratory distress...
February 2017: Veterinary World
https://www.readbyqxmd.com/read/28331393/the-beetle-fauna-insecta-coleoptera-of-the-rawdhat-khorim-national-park-central-saudi-arabia
#14
Mahmoud S Abdel-Dayem, Hassan H Fad, Ashraf M El-Torkey, Ali A Elgharbawy, Yousif N Aldryhim, Boris C Kondratieff, Amin N Al Ansi, Hathal M Aldhafer
This study was conducted as a part of a comprehensive baseline survey of insect biodiversity of Rawdhat Khorim National Park (RKNP), Central Kingdom of Saudi Arabia (KSA). During this study a total of 262 Coleoptera species belong to 182 genera in 35 families were identified, of which 247 are named at a species level. Fifteen species (6.0%) are apparently endemic to KSA. Thirty-eight species are new to the known beetle fauna of KSA, including 25 species reported from the Arabian Peninsula for the first time...
2017: ZooKeys
https://www.readbyqxmd.com/read/28316981/growth-profile-and-its-association-with-nutrient-intake-and-dietary-patterns-among-children-and-adolescents-in-hail-region-of-saudi-arabia
#15
Eyad Alshammari, Epuru Suneetha, Mohd Adnan, Saif Khan, Awfa Alazzeh
Hail region of Saudi Arabia (KSA) has the highest adult obesity rates in the entire kingdom and limited information is available about the prevalence and patterns of growth markers. Therefore, it is important to monitor the growth trends to implement effective public health preventive strategies for the region. This study aims to estimate the prevalence of growth profile patterns (stunting, wasting, underweight, and overweight) and its associations with nutrient intake and dietary patterns among children and adolescents...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28304260/the-challenges-of-cultural-competency-among-expatriate-nurses-working-in-kingdom-of-saudi-arabia
#16
Dalyal N Alosaimi, Muayyad M Ahmad
BACKGROUND AND PURPOSE: To explore the cultural challenges facing expatriate nurses working in the Kingdom of Saudi Arabia (KSA). Women do not have an active role in the workplace in KSA. Concepts of religion, culture, and language are considered to be crucial and often the lack of women's participation is attributed to these factors. METHODS: A descriptive qualitative approach was used with two methods of data collection: interviews and focus group. The study was located in a hospital setting in Al-Riyadh at KSA...
November 1, 2016: Research and Theory for Nursing Practice
https://www.readbyqxmd.com/read/28273539/nanoscale-zero-valent-iron-for-metal-metalloid-removal-from-model-hydraulic-fracturing-wastewater
#17
Yuqing Sun, Cheng Lei, Eakalak Khan, Season S Chen, Daniel C W Tsang, Yong Sik Ok, Daohui Lin, Yujie Feng, Xiang-Dong Li
Nanoscale zero-valent iron (nZVI) was tested for the removal of Cu(II), Zn(II), Cr(VI), and As(V) in model saline wastewaters from hydraulic fracturing. Increasing ionic strength (I) from 0.35 to 4.10 M (Day-1 to Day-90 wastewaters) increased Cu(II) removal (25.4-80.0%), inhibited Zn(II) removal (58.7-42.9%), slightly increased and then reduced Cr(VI) removal (65.7-44.1%), and almost unaffected As(V) removal (66.7-75.1%) by 8-h reaction with nZVI at 1-2 g L(-1). The removal kinetics conformed to pseudo-second-order model, and increasing I decreased the surface area-normalized rate coefficient (ksa) of Cu(II) and Cr(VI), probably because agglomeration of nZVI in saline wastewaters restricted diffusion of metal(loid)s to active surface sites...
June 2017: Chemosphere
https://www.readbyqxmd.com/read/28250672/utility-of-cytokine-adhesion-molecule-and-acute-phase-proteins-in-early-diagnosis-of-neonatal-sepsis
#18
M A Fattah, Al Fadhil A Omer, S Asaif, R Manlulu, T Karar, A Ahmed, A Aljada, Ayman M Saleh, Shoeb Qureshi, A Nasr
BACKGROUND AND AIM: Neonatal infection, including bacterial sepsis, is a major health care issue with an annual global mortality in excess of one million lives. Therefore, this study aimed to evaluate the potential diagnostic value of C-reactive protein (CRP), E-selectin, procalcitonin (PCT), interleukins-6 (IL-6), and tumor necrosis factor-α (TNF-α) both independently and in combination for the diagnosis of neonatal sepsis in its earliest stages. MATERIALS AND METHODS: A total of 320 subjects were included in this study...
January 2017: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/28246065/for-you-and-your-baby-4yyb-adapting-the-centers-for-disease-control-and-prevention-s-text4baby-program-for-saudi-arabia
#19
Soha Bahanshal, Steven Coughlin, Benyuan Liu
BACKGROUND: Poor birth outcomes in the Kingdom of Saudi Arabia (KSA) have been found to be partially due to missed prenatal appointments as well as lack of knowledge of healthy pregnancy behaviors. OBJECTIVE: The objectives are to summarize birth outcomes and the antenatal care system in KSA, summarize research related to the US Text4Baby mobile health program, and outline the development of an Arabic version of the Text4baby app, For You and Your Baby (4YYB). METHODS: First, birth outcomes, health care access, and smartphone usage among Saudi Arabian women are reviewed...
February 28, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28223864/clinical-pharmacist-interventions-in-refill-clinic-at-tertiary-care-eye-specialist-hospital
#20
Sitah N Alzuman, Abdullah S Al-Humaidan
Objective: To describe the role of Clinical Pharmacists in the Medication Refill Clinic area as a part of a multidisciplinary team in which he/she can provide education to patients and caregivers on the safe and appropriate use of medications, counsel on medication compliance, monitor and manage medication side effects, as well as screen for dangerous drug interactions. Methods: The data of this prospective, single-centered, chart review based study have been collected since the clinic launched in June 2011 till December 2013 in King Khalid Eye Specialist Hospital which is a Tertiary Hospital in KSA...
January 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
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