22,143 results match your criteria niger


Vanadium(V) Complexes with Bromo-Substituted Hydrazones: Synthesis, Characterization, X-ray Crystal Structures and Antimicrobial Activity.

Acta Chim Slov 2019 Sep;66(3):719-725

Two new VV complexes with the bromo-substituted hydrazones N'-(3-bromo-2-hydroxybenzylidene)-3-hydroxy-4-methoxybenzohydrazide (H2L1), N'-(3-bromo-2-hydroxybenzylidene)-3,5-dimethoxybenzohydrazide (H2L2), [VOL1(OCH3)(CH3OH)] (1) and [VOL2(OCH3)(CH3OH)] (2), were synthesized and structurally characterized by IR, UV-Vis and 1H NMR spectroscopy, as well as single-crystal X-ray determination. The V atom in the mononuclear complexes are six-coordinated in octahedral geometry. The free hydrazones and the complexes were studied on their antibacterial activity on S. Read More

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September 2019

Synthesis, Characterization and Crystal Structures of Cobalt(II), Zinc(II) and Cadmium(II) Complexes Derived from 2-Hydroxy-N'-(pyridin-2-ylmethylene)benzohydrazide with Antimicrobial Activity.

Acta Chim Slov 2019 Sep;66(3):675-680

Three new cobalt(II), zinc(II) and cadmium(II) complexes, [CoL2]·2CH3OH·H2O (1), [ZnL2] (2) and [Cd(HL)2(NO3)]N3 (3), were prepared from 2-hydroxy-N'-(pyridin-2-ylmethylene)benzohydrazide (HL). The complexes have been characterized by IR, UV-Vis and single-crystal X-ray diffraction techniques. X-ray analysis indicates that the complexes are mononuclear species, with the metal atoms in octahedral coordination. Read More

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September 2019

Synthesis, Crystal Structure and Antimicrobial Activity of a Linear Trinuclear Nickel(II) Complex with Schiff Base Ligand.

Acta Chim Slov 2019 Jun;66(2):484-489

A new linear trinuclear Schiff base nickel(II) complex, [NiNiL(α2-α1:α1-OAc)(OH2)2]·H2O, where L is the dianionic form of N,N'-bis(5-chloro-2-hydroxybenzylidene)-1,3-propanediamine (H2L), was synthesized and characterized by elemental analyses, IR spectroscopy, and X-ray single-crystal determination. There are three bridges across the Ni-Ni atom pairs, involving two phenolate O atoms of a Schiff base ligand, and an O-C-O moiety of a α2-α1:α1-OAc group. The Ni atoms have octahedral coordination. Read More

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Synthesis and Biological Evaluation of Some Novel S-β-D-Glucosides of 4-Amino-5-alkyl-1,2,4-triazole-3-thiones Derivatives.

Acta Chim Slov 2019 Jun;66(2):344-350

A novel series of 3-S-β-D-glucosides-4-arylideneamino-5-alkyl-1,2,4-triazoles were designed and synthesized by reaction of 4-amino-5-alkyl-4H-1,2,4triazole-3-thiol Schiff bases and 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide. The structures of the target compounds have been characterized by 1H NMR, 13C NMR, FT-IR, and Microanalyses. All the newly synthesized compounds have been screened for their in vitro antibacterial and antifungal activities against two Gram-positive bacteria [Bacillus cereus (PTCC 1015) and Staphylococcus aureus (ATCC 25923)], two Gram-negative bacteria [Pseudomonas aeruginosa (ATCC 27853) and Escherichia coli (PTCC 1399) and two fungi [Aspergillus niger (PTCC 5012) and Candida albicans (PTCC 5027)]. Read More

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Collinear libration points in the elliptic restricted three body problem (ER3BP) under radiating and triaxial primaries with gravitational potential from the belt.

Heliyon 2021 Mar 24;7(3):e06575. Epub 2021 Mar 24.

Department of Mathematics, Niger State College of Education, Minna, Nigeria.

This paper examines the effects of radiation pressure and triaxiality of two stars (primaries) surrounded by a belt (circumbinary disc) on the positions and stability of a third body of an infinitesimal mass in the neighbourhood of collinear libration points in the framework of elliptic restricted three body problem (ER3BP).We have found the solutions to the location of collinear points ( = 1,2,3).We have investigated these collinear points numerically and graphically using radiating binary system (FL virginis and Procyon). Read More

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Ontogeny modifies the effects of water stress on stomatal control, leaf area duration and biomass partitioning of Pennisetum glaucum.

New Phytol 2001 Jan;149(1):71-82

ORSTOM, Institut Français de Recherche Scientifique pour le Développement en Coopération, Niamey, Niger.

• Experiments are presented that test the relative importance, during ontogeny, of stomatal control and leaf area expansion to optimum seasonal water use in pearl millet (Pennisetum glaucum). These parameters play a key role in the compromise between plant growth and water saving under unpredictable conditions of semiarid environments. • The response of growth and water use of crops to successive 15 d drought periods was measured under field conditions in Niger (West Africa). Read More

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January 2001

Large solitary scalp metastasis of renal cell carcinoma: A case report.

Niger J Clin Pract 2021 Apr;24(4):629-631

Department of Medical Oncology, Acibadem Mehmet Ali Aydinlar University School of Medicine, Istanbul, Turkey.

Renal cell carcinoma (RCC) can metastasize to various organs of the body. The skin is an uncommon site for metastasis. However, if metastasis to skin occurs, scalp is a common area. Read More

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Evaluation of the causes of failure of root canal treatment among patients in the City of Al-Kharj, Saudi Arabia.

Niger J Clin Pract 2021 Apr;24(4):621-628

General Dental Practitioner, Al-Kharj, Saudi Arabia.

Background: Endodontic treatment failure is one of the most common problems encountered in dentistry.

Aims: This study aimed to evaluate the causes of failure of endodontic treatment among patients in the Saudi Arabian city of Al-Kharj.

Subjects And Methods: A total of 250 patients of both genders were involved in the study. Read More

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Clinicopathological comparison of VHL expression as a prognostic tumor marker in renal cell carcinoma: A single center experience.

Niger J Clin Pract 2021 Apr;24(4):614-620

Consultant Urologist, R.G Stone Clinic, Chennai, Tamil Nadu, India.

Aim: To assess the VHL gene expression as a prognostic marker in Renal Cell Carcinoma (RCC) and compare it with clinicopathologic features.

Materials And Methods: This retrospective observational study was conducted in the department of Urology and Renal Transplantation in Sri Ramachandra Institute of Higher Education and Research, Chennai from August 2016 to August 2018. Thirty patients who have undergone a radical/partial nephrectomy with biopsy proven histological diagnosis of RCC during the study period were included in the study. Read More

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The expression and relationship of AdipoR1/R2 in gastric intestinal metaplasia.

Niger J Clin Pract 2021 Apr;24(4):608-613

Department of Pathology, School of Medicine, Uludag University, Bursa, Turkey.

Background: Adiponectin (ApN) is a 244-amino acid protein mainly secreted from the adipose tissue and involved in various physiological functions. ApN exerts its metabolic effects by binding to two major receptors: adiponectin receptor-1 (Adipo-R1) and adiponectin receptor-2 (Adipo-R2). Recent studies have reported ApN's involvement in the progression of cancer. Read More

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Resistance training exercises for obese and non-obese individuals living in high-altitude regions utilizing biochemical markers-A controlled trial.

Niger J Clin Pract 2021 Apr;24(4):600-607

Department of Pharmacognosy, College of Pharmacy, King Khalid University, Abha, Saudi Arabia.

Background: High-altitude disease prevalence varies according to types of exposure and the effects of hypoxic and hypobaric environments, with the result that people at high altitudes present many different physiological responses.

Aims: The research aims to analyze the effects of resistance training (RT) exercises at high altitudes on obese subjects and to explain the determinants that make obese people more susceptible to various chronic illnesses such as diabetes mellitus, hypertension, asthma, etc.

Methods: This study recruited 225 subjects living in the high-altitude region of Aseer, Saudi Arabia, and divided them into three groups. Read More

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Clinical comparison of patients with angiography: Negative perimesencephalic and nonperimesencephalic subarachnoid hemorrhages.

Niger J Clin Pract 2021 Apr;24(4):595-599

Department of Neurosurgery, Training and Research Hospital, Adana City, Turkey.

Aims: This study aimed to compare the clinical courses, complications, and clinical outcome scores of patients with perimesencephalic (PM) and nonperimesencephalic (n-PM) subarachnoid hemorrhage (SAH) with no vascular pathology observed on cerebral angiography.

Materials And Methods: This retrospective study included 52 of 310 patients who underwent cerebral digital subtraction angiography for SAH between October 2016 and April 2018. The patients were categorized into PM and n-PM groups based on the type of hemorrhage observed on brain CT. Read More

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Comparison of the treatment outcomes of the conventional stainless steel crown restorations and the hall technique in the treatment of carious primary molars.

Niger J Clin Pract 2021 Apr;24(4):584-594

Department of Child Dental Health, College of Medicine, University of Lagos, Nigeria.

Background: Dental caries is a multifactorial disease that causes reversible decalcification and cavitation of susceptible teeth exposed to sugary substrates over a period of time in the oral cavity. It gives clinical and social burdens to the child patients and their parents/carers. Stainless steel crown (SSC) restoration is one of the restorative treatment options in the management of carious primary molars. Read More

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Normative reference values for functional, lateral, and oblique direction reach tests in Saudi children aged six to 15 years old and psychometric properties of the oblique direction reach test.

Niger J Clin Pract 2021 Apr;24(4):576-583

Department of Basic Medical Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Kingdom of Saudi Arabia.

Aims: To establish normative values for functional, lateral, and Oblique Direction Reach Tests (ODRT) and to assess the validity and reliability of the ODRT in Saudi children of age 6-15 years.

Methods: Three hundred Saudi children of age 6-15 years children were recruited by using snowball sampling. Children were measured for distance reached in forward, lateral, and oblique direction on a graph paper, which was mounted on a wall/cardboard. Read More

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Normative reference values for the timed up-and-go test in Indian children aged four to 11 years old and their correlation with demographic characteristics: A cross-sectional study.

Niger J Clin Pract 2021 Apr;24(4):569-575

Department of Physiotherapy, Shree Bhartimaiya College of Optometry and Physiotherapy, Veer Narmad South Gujarat University, Surat, Gujarat, India.

Background: The timed up-and-go test (TUGT) is a quick, reliable, and valid assessment tool for evaluating functional mobility or dynamic balance.

Aims: The purpose of this study was to establish the normative values for TUGT in children aged 4 to 11 years old in Surat, India.

Methods: A total of 420 children (210 boys and 210 girls) were included. Read More

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Assessment of the orbital structures using computed tomography in healthy adults.

Niger J Clin Pract 2021 Apr;24(4):561-568

Department of Ophthalmology, Buyukcekmece State Hospital, Istanbul, Turkey.

Objectives: In this study, we retrospectively evaluated the orbital and ocular dimensions using computed tomography (CT) scans in healthy adults.

Materials And Methods: This retrospective study included 302 Turkish adult individuals aged 20-76 years (158 males and 144 females), who underwent paranasal sinus or craniofacial CT due to headache or suspicion of sinusitis, but abnormal orbital or cranial CT findings were not detected. Linear and volumetric measurements of the orbital structures were performed in the sagittal, coronal, and axial planes on CT slices. Read More

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Effects of mouthwashes on color stability and surface roughness of three different resin-based composites.

Niger J Clin Pract 2021 Apr;24(4):555-560

Department of Dentistry, Faculty of Dentistry, Selcuk University, Konya, Turkey.

Objective: The aim of this study is to evaluate the effects of different types of mouthwashes (Klorhexidin, Curasept ADS 205, Meridol, Listerine Cool Citrus) on the surface roughness and color changes of a microhybrid (Point 4), a bulk fill (SonicFill), and a nanohybrid (Nova Compo-N) resin-based composite (RBC).

Materials And Methods: Disk-shaped specimens were prepared from tested RBCs and divided into four subgroups which immersed in four different types of mouthwashes. The specimens were subjected to immersion cycles in the mouthwashes and artificial saliva (n = 8). Read More

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Diagnostic value of penile color doppler ultrasonography in patients with veno-occlusive erectile dysfunction.

Niger J Clin Pract 2021 Apr;24(4):551-554

Department of Radiology, Medical Faculty, İnönü University, Malatya, Turkey.

Background: The method used in the first assessment of patients with veno-occlusive erectile dysfunction (ED) is penile color doppler ultrasonography (PCDU). However, cavernosography performed following intracavernosal pharmacostimulation is accepted as a more precise method for showing venous leakage.

Aims: The objectives of this study were to compare results obtained from patients undergoing PCDU, and those undergoing cavernosography, and to investigate the diagnostic value of PCDU in the diagnosis. Read More

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Analysis of 10 cases of orbital infections arising from odontogenic cervicofacial infections.

Niger J Clin Pract 2021 Apr;24(4):546-550

Department of Ophthalmology, Ahmadu Bello University Teaching Hospital, Zaria, Nigeria.

Background: Orbital cellulitis, also called postseptal cellulitis, is an infection of contents of the orbit (periorbital fat, neurovascular bundle, and the extraocular muscles). It should be differentiated from preseptal (periorbital) cellulitis which is a lesion of the anterior portion of the eyelid. However, both preseptal and postseptal cellulitis could present in a similar way with eye pain, edema, and erythema. Read More

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Awareness of dental practitioners and intern dental practitioners in Northern Cyprus towards pandemic of SARS-CoV-2.

Authors:
O Onoral M G Caymaz

Niger J Clin Pract 2021 Apr;24(4):534-545

Department of Oral and Maxillofacial Surgery, Near East University Faculty of Dentistry, Nicosia, Mersin, Turkey.

Aims: This study aimed to evaluate the perception, attitude, and awareness of dental practitioners (DPs) and intern DPs towards SARS-COV-2 by comparing the awareness-attitude score (AAS).

Materials And Methods: An online survey was generated in Google Forms. An invitation email was sent to all DPs in Northern Cyprus (n = 270) and intern DPs at Near East University (n = 200). Read More

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Determination of the thickness of the safe enamel for laminate veneer preparation and orthodontic stripping by CBCT.

Niger J Clin Pract 2021 Apr;24(4):525-533

Department of Orthodontics, Faculty of Dentistry, Medipol University, İstanbul, Turkey.

Aim: The purpose of this study is to determine the thickness and limitation of the safe enamel for laminate veneers and orthodontic stripping applications. Enamel thickness (ET) was determined in detail for each tooth and also it was examined whether there was a relationship between the mesiodistal crown width of the teeth and the thickness of the enamel and whether there was a sexual dimorphism.

Subjects And Methods: CBCT records of 101 subjects (mean age: 20. Read More

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Health-related quality of life in children and adolescents with epilepsy in Enugu: Need for targeted intervention.

Niger J Clin Pract 2021 Apr;24(4):517-524

Department of Paediatrics, College of Medicine, University of Nigeria Enugu Campus, Ituku-Ozalla, Nigeria.

Background: Epilepsy, a chronic brain disorder, predisposes children to low Health-Related Quality of Life (HRQOL).

Objective: This study aimed at assessing the HRQOL in Nigerian children with epilepsy and compare it with that in healthy children.

Methods: A cross-sectional study of 166 children with epilepsy (CWE), aged 5-18 years on anti-epileptic drugs (AEDs) for at least 6 months and 166 age and sex-matched apparently healthy children was conducted. Read More

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Demographic, clinical, and anthropometric profiles and postoperative outcomes in patients with chronic limb threatening ischemia: A prospective descriptive study.

Niger J Clin Pract 2021 Apr;24(4):511-516

Department of Surgery, University of Cape Town, Groote Schuur Hospital, Vascular Surgery Unit, Cape Town, South Africa.

Background: Chronic limb-threatening ischemia (CLTI) is a complex disease caused by peripheral artery disease. It is associated with ischemic foot pain (rest pain) and tissue loss in the form of chronic nonhealing foot ulcers or gangrene. CLTI has a high short-term risk of limb amputations, postoperative sepsis, and cardiovascular-related events. Read More

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Effect of ferrule height and distribution on the fracture resistance of endodontically treated premolars.

Niger J Clin Pract 2021 Apr;24(4):505-510

Department of Restorative Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.

Objective: To evaluate the effect of varying ferrule height and distribution on the fatigue resistance and fracture strength of endodontically treated premolars.

Materials And Method: Thirty-two extracted human premolars were endodontically treated and prepared to receive all-ceramic crowns. Teeth were randomly divided into two groups. Read More

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Comparative evaluation of three histidine-rich Protein-2 based rapid diagnostic tests, microscopy and PCR for guiding malaria treatment in Ibadan, Southwest Nigeria.

Niger J Clin Pract 2021 Apr;24(4):496-504

Department of Pharmacology and Therapeutics; Institute for Advanced Medical Research and Training, College of Medicine, University of Ibadan, Ibadan, Nigeria.

Background: Malaria rapid diagnostic tests (mRDTs) are the preferred option for programmatic deployment.

Aims: There are numerous mRDTs on the Nigerian market and there is a need to guide practitioners on the relative performance of the commonly used brands of mRDT in Nigeria.

Subjects And Methods: The performance of three commonly used Histidine-Rich-Protein-2-based mRDTs (SD-Bioline™, Carestart™ and Paracheck-Pf™) against microscopy of Giemsa stained blood and polymerase chain reaction (PCR) was evaluated among 190 febrile under-5 children in Ibadan, Nigeria. Read More

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Diagnostic value of MDCT in determining the perinephric fat tissue and renal sinus invasion in patients with clear cell renal cell carcinoma.

Niger J Clin Pract 2021 Apr;24(4):489-495

Lutfi Kirdar Kartal Education and Research Hospital, Cevizli mh. Şemsi Denizer cad. E-5 Karayolu Cevizli Mevkii, 34890 Kartal, İstanbul, Turkey.

Aims: To investigate the accuracy of multidetector computed tomography (MDCT) findings, and the effect of tumor volume in determining the perinephric and renal sinus invasion in clear cell renal cell carcinomas (ccRCCs).

Method: Fifty patients with ccRCCs underwent non-contrast and nephrographic-phase contrast-enhanced MDCT examination before total nephrectomy. The following MDCT features were used to diagnose perinephric fat tissue invasion: perinephric stranding, perinephric vascularity, and irregular contour. Read More

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Prevalence of hypercementosis and frequency of possible etiological factors in a Turkish subpopulation.

Niger J Clin Pract 2021 Apr;24(4):483-488

Department of Statistics, Faculty of Science, Sivas Cumhuriyet University, Sivas, Turkey.

Objective: The aim of this study was to investigate the prevalence and types of hypercementosis and the frequency of possible etiological factors in a large sample of Turkish central Anatolian population.

Subjects And Methods: A cross-sectional study was performed using panoramic radiographs of 1176 randomly selected adult patients with an age range of 18-96 years, who presented to the Department of Oral and Maxillofacial Radiology of the Faculty of Dentistry, Cumhuriyet University (Sivas, Turkey) for dental care. Patients were questioned about the presence of systemic diseases. Read More

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Prevalence of noncommunicable disease risk factors among market traders in Jos North Local Government Area, Plateau State Nigeria.

Niger J Clin Pract 2021 Apr;24(4):476-482

Department of Community Medicine, Jos University Teaching Hospital, Plateau State, Nigeria.

Background: Noncommunicable diseases have become a new public health priority in low-and middle-income countries where urbanization and lifestyle changes have approached what obtains in developed countries.

Aim: The aim of this study was to estimate the prevalence of noncommunicable disease risk factors among market traders in Jos North Local Government Area of Plateau State.

Method: This was a descriptive cross-sectional study carried out among adult market traders who were selected through a two-stage sampling technique. Read More

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Complications following secondary voice prosthesis insertion and impact of previous irradiation on their appearance.

Niger J Clin Pract 2021 Apr;24(4):470-475

Faculty of Medicine, University of Novi Sad; Clinical Centre of Vojvodina, Clinic for Otorhinolaryngology and Head and Neck Surgery, Novi Sad, Serbia.

Objective: The aim of this study was to analyze the complications following secondary voice prosthesis insertion and impact of previous irradiation on their appearance.

Methods: This study included 106 totally laryngectomized patients who underwent secondary Provox 2 voice prosthesis insertion. Among them, 79 (74. Read More

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Knowledge, attitudes, and perceptions related to telemedicine among young doctors and nursing staff at the King Abdul-Aziz University Hospital Jeddah, KSA.

Niger J Clin Pract 2021 Apr;24(4):464-469

Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.

Objective: To investigate the knowledge, perceptions, and attitude of young doctors and nurses at Kind Abdulaziz University Hospital (KAUH) Jeddah, KSA, regarding the effectiveness of telemedicine in dealing with the patients for either follow-up or continuous monitoring of chronic diseases.

Material And Methods: This prospective cross-sectional study was carried out on the young doctors and nursing staff at KAUH. An online questionnaire addressing all the required fields, i. Read More

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