Artículos: Envíos recientes
Mostrando ítems 81-100 de 280
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Identifying users’ requirements for emergency mapping team operations in small island developing states: Caribbean Perspective
(International Journal o f Geo-Information, 2021)Small Island Developing States (SIDS) increasingly face natural hazards that overwhelm their capacity to generate and share spatial-information to reduce human–economic losses. Under such circumstances, the emergency ... -
Food accessibility in Central America and the Dominican Republic
(nutrición clínica y Dietética Hospitalaria, 2021)Food accessibility is linked to food insecurity. Likewise, poverty is the main underlying determinant of household food insecurity and increases the consumption of products of little nutritional value, which has consequences ... -
Empathic diagnosis among medical students in the Dominican Republic: declination and gender
(Revista de la Facultad de Medicina, 2021)Introduction: Empathic decline is characterized by a decrease in the levels of empathy. Objective: To diagnose empathic behavior in students of the Pedro Henríquez Ureña National University School of Medicine, Santo Domingo, ... -
Dust from the Sahara to the American Continent: health impacts
(Allergol Immunopathol (Madr)., 2021)The Saharan Air Layer is a mass of hot, dry air laden with dust that forms over the Sahara and moves towards the Atlantic Ocean. This air mass contains soil dust particles emitted by the action of winds on the African ... -
Decline in empathy levels and sex differences in medical students from the Caribbean
(Semantic Scholar., 2021)Empathy is an important trait in the training of medical students, as it has been shown that it improves the doctor-patient relationship. To evaluate the decline of empathy levels and possible sex differences in undergraduate ... -
The biochemical and phenotypic characterization of females homozygous for 5 alpha-reductase-2 deficiency
(The Journal of Clinical Endocrinology & Metabolism,, 1995-11)The biochemical and physiologic manifestations of decreased 5 alpha-dihydrotestosterone (DHT) in females are characterized. Three females from the large Dominican kindred with 5 alpha-reductase-2 deficiency were identified ... -
Luteinizing hormone pulsatility in subjects with 5-alpha-reductase deficiency and decreased dihydrotestosterone production
(PulbMed, 1994-04)The pattern of LH pulsatility in male pseudohermaphrodites with inherited 5 alpha-reductase-2 deficiency (5 alpha RD) and decreased levels of plasma dihydrotestosterone was compared to that in normal males. Analysis of ... -
Current status and challenges of stem cell treatment for Alzheimer’s disease
(Journal of Alzheimer’s Disease, 2021)Neurodegenerative diseases called tauopathies, such as Alzheimer’s disease (AD), frontotemporal dementia, progressive supranuclear palsy, and Parkinson’s disease, among others, are characterized by the pathological processing ... -
A compton peak method for incident angle determination in XRF with annular excitation
(X-Ray Spectrometry, 1992)Established methods for measuring the incident angle related to XRF when radioisotope annular sources are involved are briefly discussed. As an alternative technique, a direct measurement of the incident angle from the ... -
X-ray fluorescence characterization of ming-dynasty porcelain rescued from a spanish shipwreck
(wiley, 1992-02)A radioisotope induced X-ray fluorescence method was used to measure trace elements in Ming porcelain. Thirty pieces of blue-and-white Chinese porcelain, belonging to the Ch'eng Hua reign (AD 1465-87) and rescued from a ... -
Prostate visualization studies in males homozygous and heterozygous for 5 alpha-reductase deficiency
(The Journal of Clinical Endocrinology & Metabolism, 1992-10-01)Male pseudohermaphrodites with 5 alpha-reductase deficiency have ambiguous genitalia and nonpalpable prostates on rectal examination, suggesting the dihydrotestosterone dependency of these structures. To clearly delineate ... -
The protocols for the 10/66 dementia research group population-based research programme
(BMC Public Health, 2007-07-07)Latin America, China and India are experiencing unprecedentedly rapid demographic ageing with an increasing number of people with dementia. The 10/66 Dementia Research Group's title refers to the 66% of people with dementia ... -
Performance of the parallel plate avalanche counter (PPAC) for improving the depth profile of conversion electron Mössbauer spectroscopy (CEMS)
(Journal of Radioanalytical and Nuclear Chemistry, 1991)The parallel plate avalanche counter (PPAC) built in our laboratory was used to measure the CEM spectra of iron electrodeposited over a steel substrate. The electron counter was operated with ketone gas inside the ionization ... -
Extraction of vanadium from petroleum coke samples by means of microwave wet acid digestion
(Elsevier, 1990-01)Certified coal standards and Venezuelan petroleum coke samples were submitted to microwave acid digestion to evaluate the convenience of this procedure for the extraction of their vanadium content. The solution and the ... -
Reversibility of catecholamine-induced dilated cardiomyopathy in a child with a pheochromocytoma
(N Engl J Med, 1987-03-26)Patients with a severe, dilated cardiomyopathy with congestive heart failure have a poor prognosis unless a correctable cause can be identified. Even when a cause is found, the degree of reversibility of myocardial injury ... -
A low-cost LN2 monitor
(American Journal of Physician, 1989) -
Inherited 5α-reductase deficiency in man
(ScienceDirect, 1986)Study of the syndrome of 5α-reductase deficiency in man has elucidated the importance of testosterone conversion to dihydrotestosterone in sexual differentiation of the male fetus. Insights into specific actions for ... -
Male pseudohermaphroditism due to multiple defects in steroid-biosynthetic microsomal mixed-function oxidases — a new variant of congenital adrenal hyperplasia
(New England Journal of Medicine, 1985-11-07)A six-month-old 46,XY infant with a female phenotype and ambiguous genitalia was evaluated for male pseudohermaphroditism. The principal findings were (1) low basal plasma levels of all measured C19 steroids and their ... -
Decreased Urinary C19 and C21 Steroid 5α-Metabolites in Parents of Male Pseudohermaphrodites with 5α- Reductase Deficiency: Detection of Carriers
(The Journal of Clinical Endocrinology & Metabolism, 1985-05-01)The urinary 5β/5α ring A-reduced metabolites of C19 and C12 steroids from obligate carrier parents of male) pseudohermaphrodites with 5a-reductase deficiency were analyzed by gas chromatography. Etiocholanolone/androsterone, ... -
Urinary steroid metabolites in subjects with male pseudohermaphroditism due to 5α-reductase deficiency
(Wiley, 1985-07)To investigate the enzymatic basis for abnormal steroid metabolism in subjects with male pseudohermaphroditism due to 5α-reductase deficiency, the ring A reduced urinary 5β and 5α metabolites of testosterone, androstenedione, ...