Search results for " Central"
showing 10 items of 560 documents
Pattern of distribution and etiologies of Midline diastema among Kurdistan-region Population
2020
Background Aim of study was to evaluate the prevalence and etiological factors that contribute in midline diastema in Kurdistan region-Iraq population among different age groups and genders. Material and Methods Orthodontic patients sample of (EX: 1021orthodontic patients (537 males and 484 females) were randomly selected from Kurdistan-region population, attending to orthodontic department of khanzad polyclinic teaching center (General directorate of hawler / Ministry of health/ Kurdistan region- Iraq) during 2018-2019 period. Aged (13-35 years) with mean age ± SD was 19.6 ± 4.8 years, with a median of 19 years. The examination included patient history taking, intraoral examination, photog…
Response to Comment on "Ancient DNA from the First European Farmers in 7500-Year-Old Neolithic Sites"
2006
The discovery of mitochondrial type N1a in Central European Neolithic skeletons at a high frequency enabled us to answer the question of whether the modern population is maternally descended from the early farmers instead of addressing the traditional question of the origin of early European farmers.
Frequency of mesiodens in the pediatric population in North India: A radiographic study
2013
Objectives: Mesiodens are the most common supernumerary teeth, occurring in 0.15% to 2.2% of the population. The aim of the present study was to analyze the frequency and radiological features of mesiodens in the pediatric population. Material and methods: The study was based on the radiographic evaluation of 4133 pediatric patients of the age range of 4-15 years, attending the Department of Oral Medicine and Radiology during the time period between September 2008 to December 2012. In addition to the presence of a supernumerary tooth between the 2 central incisors, data regarding the number, position, shape and associated complications were also recorded. Results: The prevalence of mesioden…
The Prevalence of Amblyopia in Germany
2015
Amblyopia is a condition in which reduced visual acuity is not directly caused by an organic defect (1). Amblyopia can develop when an infant or small child suffers from strabismus. Although both eyes are healthy, different images are formed on each fovea centralis (where vision is sharpest) and on other corresponding locations on the retina; this is in contrast to individuals without strabismus. To prevent double vision the child’s brain suppresses the image produced by one eye. Complete visual ability cannot develop in this eye during the sensitive phase of visual development (2). Approximately half of amblyopia cases (3) are caused by uncorrected higher refractive errors, which are frequ…
Los «grupos financiero-industriales» en la Federación Rusa : Nuevas tendencias en el establecimiento de vínculos entre las esferas financiera y produ…
2000
El presente artículo tiene como objetivo estudiar las relaciones existentes entre las esferas financiera y productiva de la economía rusa. Para ello se analiza, en primer lugar, los aspectos legislativos de la formación de los grupos financiero-industriales, describiéndose los requisitos y las restricciones básicas para la formación de estos grupos. En segundo lugar, se revisa la distinta evolución desarrollada por los grupos financieroindustriales cuantificando el fenómeno, por un lado, así como su ubicación en el espacio ruso, por otro. En tercer lugar, se elabora una caracterización de los grupos financieros, enumerando los principales criterios de integración que se han detectado para l…
Influencia del contexto en el uso e interpretación de medidas centrales y variabilidad. Un estudio exploratorio con estudiantes de secundaria, maestr…
2015
En este trabajo desarrollamos un estudio exploratorio sobre la resolución de problemas de variabilidad con estudiantes de secundaria, maestros en formación y maestros en activo. Presentamos un cuestionario elaborado por los investigadores y, a partir de él, analizamos las respuestas de los estudiantes desde el punto de vista de la dificultad del problema y de la influencia que el contexto y el formato de los datos tiene sobre dicha resolución. En el análisis hacemos hincapié en la dificultad y los errores que supone para el alumnado el uso e interpretación de las medidas centrales cuando comparan conjuntos de datos.
Effect of extracellular vesicles from CSF of multiple sclerosis patients and healthy controls on astrocytes in culture
2017
INTRODUCTION Secretion of extracellular vesicles (EVs) and EV-mediated exchange of molecules among brain cells, under physiological conditions, has been described years ago. At the same time, ability of EVs to transfer proteins and nucleic acids to the surrounding cells, thus modifying their phenotypes, has been clearly demonstrated for tumor cells of different origins, including brain cancers. More recently, involvement of EVs in pathological processes affecting the Central Nervous System (CNS), and their capacity of transferring damaging cargoes have been also suggested. To explore these functions, we exposed primary cultures of astrocytes to EVs isolated from cerebral spinal fluid (CSF) …
A Synopsis of the Genus Stipa (Poaceae) in Middle Asia, Including a Key to Species Identification, an Annotated Checklist, and Phytogeographic Analys…
2020
The genus Stipa L. comprises over 150 species, all native to the Old World, where they grow in warm temperate regions throughout Europe, Asia, and North Africa. It is one of the largest genera in the family Poaceae in Middle Asia, where one of its diversity hotspots is located. However, identification of Middle Asian Stipa species is difficult because of the lack of new, comprehensive taxonomic studies including all of the species recorded in the region. We present a critical review of the Mid-Asian representatives of Stipa, together with an identification key and taxonomic listing. We relied on both published and unpublished information for the taxa involved, many of which are poorly known…
La suprema giurisdizione nella Sardegna moderna. Travagli della Real Audiencia (1564-1651)
2019
The institution of the Real Audiencia in the kingdom of Sardinia since the 1560s is part of a wider process which saw the rise and development of royal supreme courts of justice in several European countries of the early modern period. In fact, major State formation processes all around Europe required that monarchs increased their control on local authorities and that new increasingly centralised systems of judicial review gained precedence over all particular jurisdictions, feudal as well as municipal. This brought about a dramatic transformation in the field of criminal law enforcement and administration of justice.
Gnaphalio uliginosi-eleocharitetum acicularis Passarge 1999, new plant community in Poland
2017
Zbiorniki wodne są bardzo cennymi miejscami florystycznymi w Polsce. Wśród nich najważniejsze dla zachowania różnorodności biologicznej flory są stawy rybne. Długookresowy proces oddziaływania ludzkiego na tego typu siedliska powodował zakłócenia w ich równowadze biologicznej. Zmiany w systemie wodnym, rozwój przemysłowy i chemizacja rolnictwa, zwłaszcza w okresie ostatnich dwóch stuleci, doprowadziły do zaniku wielu gatunków roślin oraz zbiorowisk roślinnych. Zespół Gnaphalio uliginosi-Eleocharitetum acicularis Passarge 1999 z klasy Isoëto-Nanojuncetea Br.-Bl. et Tx. 1943, po raz pierwszy został opisany w Niemczech. Rośnie na piaszczystych lub mulistych brzegach rzek, starorzeczach i w sta…