scholarly journals ANALYSIS OF LUMBOSACRAL LORDOSIS USING STANDING LATERAL RADIOGRAPHS THROUGH CURVE RECONSTRUCTION

2002 ◽  
Vol 14 (04) ◽  
pp. 149-156 ◽  
Author(s):  
RUEY-MO LIN ◽  
RONG-SHEAN LEE ◽  
YING-MING HUANG ◽  
SHOU-I CHEN ◽  
CHIN-YIN YU
Keyword(s):  
Age Groups ◽  
Lumbosacral Spine ◽  
Reconstruction Method ◽  
Lumbar Curve ◽  
Curve Reconstruction ◽  
Practical Applications ◽  
Geometric Characteristics ◽  
Gender And Age ◽  
Lumbosacral Lordosis ◽  
Lower Lumbar

The consensus of the normal magnitude of lumbosacral curve has not been achieved. The Cobb's angle cannot depict the whole contour of this curve. For practical applications, a clearer image of these curves and their aging changes should be further investigated. This study aimed to provide a more consolidate concept of normal lumbosacral curves for clinician through a computerized reconstruction method. Standing lateral radiographs of lumbosacral spine in 82 normal adults were used for reconstructing the sagittal lumbosacral curves. The geometric characteristics of these curves according to the gender and age groups were studied. Using standing lateral radiographs, reconstruction of the lumbosacral curves was performed through digitization, programming and computation. These curves and related parameters were normalized and averaged for analyzing the differences of gender and age. The most anteriorward and horizontal vertebrae usually occurred on the L4 and L3 in any gender and age groups. The sacral inclination angle did not change obviously with the increasing ages. A tendency of L1 shifting backward was noted in the age groups of 40 to 60 and above 60 years old. The sagittal lumbosacral curves can be easily reconstructed by digitizing lateral radiographs, The aging changes of lumbosacral curves could be qualitatively described as the flattening of lower lumbar curve and the rearward inclination of upper lumbar curve. The changes occurred obviously above 40 years old. Although individual variations existed, the aging changes and the geometric characteristics such as the most anteriorward or horizontal vertebrae could be used as an important guideline during therapy or surgical correction.

scholarly journals Effect of Age and Lordotic Angle on the Level of Lumbar Disc Herniation

2011 ◽  
Vol 2011 ◽  
pp. 1-6 ◽  
Author(s):  
Ghassan S. Skaf ◽  
Chakib M. Ayoub ◽  
Nathalie T. Domloj ◽  
Massud J. Turbay ◽  
Cherine El-Zein ◽  
...  
Keyword(s):  
Lumbar Disc Herniation ◽  
Disc Herniation ◽  
Lumbar Disc ◽  
Age Groups ◽  
Young Patients ◽  
Lumbosacral Spine ◽  
Cobb’S Angle ◽  
Lower Lumbar ◽  
The Relationship ◽  
Effect Of Age

It has been previously suggested in the literature that with aging, degenerative changes as well as disc herniation start at the lower lumbar segments, with higher disc involvement observed in an ascending fashion in older age groups. We conducted a study to investigate this correlation between age and level of disc herniation, and to associate it with the magnitude of the Lumbar Lordotic Angle (LLA), as measured by Cobb’s method. We followed retrospectively lumbosacral spine MRI’s of 1419 patients with symptomatic disc herniation. Pearson’s correlation was used in order to investigate the relationship between LLA, age, and level of disc herniation. Student’s -test was applied to assess gender differences. Young patients were found to have higher LLA (, ) and lower levels of disc herniation (, ), whereas older patients had higher level herniation in lower LLA group (mean LLA 28.6° and 25.4°) and lower level herniation in high LLA group (mean LLA 33.2°). We concluded that Lumbar lordotic Cobb’s angle and age can be predictors of the level of lumbar disc herniation. This did not differ among men and women (, ).

Measurement Invariance of Divergent Thinking Across Gender, Age, and School Forms

2009 ◽  
Vol 25 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Jörg-Tobias Kuhn ◽  
Heinz Holling
Keyword(s):  
Measurement Invariance ◽  
Divergent Thinking ◽  
Factor Model ◽  
Age Groups ◽  
Thinking Skills ◽  
Specific Model ◽  
Confirmatory Factor Analyses ◽  
Domain Specific ◽  
Gender And Age ◽  
Confirmatory Factor

The present study explores the factorial structure and the degree of measurement invariance of 12 divergent thinking tests. In a large sample of German students (N = 1328), a three-factor model representing verbal, figural, and numerical divergent thinking was supported. Multigroup confirmatory factor analyses revealed that partial strong measurement invariance was tenable across gender and age groups as well as school forms. Latent mean comparisons resulted in significantly higher divergent thinking skills for females and students in schools with higher mean IQ. Older students exhibited higher latent means on the verbal and figural factor, but not on the numerical factor. These results suggest that a domain-specific model of divergent thinking may be assumed, although further research is needed to elucidate the sources that negatively affect measurement invariance.

Fortuna

2018 ◽  
Author(s):  
Daniele Miano
Keyword(s):  
Middle Ages ◽  
Historical Development ◽  
Conceptual Analysis ◽  
Dominant Role ◽  
Age Groups ◽  
New Approach ◽  
Good Fortune ◽  
Gender And Age ◽  
New Meanings ◽  
And Gender

This book focuses on the Latin goddess Fortuna, one of the better known deities in ancient Italy. The earliest forms of her worship can be traced back to archaic Latium, and she was still a widely recognized allegorical figure during the Middle Ages and the Renaissance. The main reason for her longevity is that she was a conceptual deity, and had strong associations with chance and good fortune. When they were interacting with the goddess, communities, individuals, and gender and age groups were inevitably also interacting with the concept. These relations were not neutral: they allowed people to renegotiate the concept, enriching it with new meanings and challenging established ones. The geographical and chronological scope of this book is Italy from the archaic age to the late Republic. In this period Italy was a fragmented, multicultural and multilinguistic environment, characterized by a wide circulation of people, customs, and ideas, in which Rome played an increasingly dominant role. All available sources on Fortuna have been used: literary, epigraphic, and archaeological. The study of the goddess based on conceptual analysis will serve to construct a radically new picture of the historical development of this deity in the context of the cultural interactions taking place in ancient Italy. The book also aims at experimenting with a new approach to polytheism, based on the connection between gods and goddesses and concepts.

scholarly journals Different patterns of behavioural and emotional difficulties through adolescence: The influence of prosocial skills

2016 ◽  
Vol 33 (1) ◽  
pp. 48 ◽  
Author(s):  
Javier Ortuño-Sierra ◽  
Eduardo Fonseca-Pedrero ◽  
Sylvia Sastre i Riba ◽  
José Muñiz
Keyword(s):  
Age Groups ◽  
Cluster Solution ◽  
Emotional Difficulties ◽  
Prosocial Skills ◽  
School Based ◽  
Gender And Age ◽  
Behavioural Patterns ◽  
Cluster Composition ◽  
Strengths And Difficulties ◽  
Internalizing Difficulties

<p>The main purpose of the study was to examine the cluster composition of the analysis on the effect of gender and age of the Strengths and Difficulties Questionnaire (SDQ) in a large school-based sample of high school adolescents ranging from 14 to 18 years old (<em>N</em> =  1474). In order to do this, a K-means iterative cluster analysis was performed. A five-cluster solution turned out to be the most parsimonious in the differentiation of emotional and behavioural patterns. A five-cluster solution yielded the following patterns: “No difficulties and high prosocial scores” (<em>n </em>= 418; 28.36%), “high difficulties and low prosocial scores” (<em>n</em> = 239; 16.21%), “high on hyperactivity, low on the rest of the difficulties subscales, and high in prosocial capabilities” (<em>n</em> = 302; 20.49%), “high on emotional and peer problems, relatively low on conduct and hyperactivity, and high in prosocial capabilities” (<em>n</em> = 275; 18.66%), and finally “hyperactivity problems and average in the others difficulties subscales, and in prosocial capabilities” (<em>n</em> = 239; 16.21%). This cluster solution was replicated attending to the same gender and age groups. Nevertheless, differences in the distribution of the cluster composition suggest that difficulties differ by gender and age. The results allow for the conclusion that men reveal a greater number of problems of an externalizing nature whereas women indicate a greater degree of problems with internalizing difficulties and prosocial skills.</p>

scholarly journals MRI Findings of Non-Degenerative Pathoanatomical Changes in Low Back Pain

2016 ◽  
Vol 12 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Dan B Karki ◽  
Om B Panta ◽  
Ghanshyam Gurung
Keyword(s):  
Low Back Pain ◽  
Back Pain ◽  
Multimodality Imaging ◽  
Compression Fracture ◽  
Degenerative Changes ◽  
Lumbosacral Spine ◽  
Low Back ◽  
Neoplastic Lesion ◽  
Lower Lumbar ◽  
Meningeal Cysts

Non-degenerative pathoanatomical changes are far less common than degenerative changes but benefi ts most from imaging assessment. This study aimed to evaluate the non-degenerative pathoanatomical changes in patients undergoing MRI for low back pain.The study was a retrospective study conducted for the duration of 3 years in a multimodality-imaging center. All patients undergoing MRI of lumbosacral spine with complains of low back pain with or without radiculopathy were assessed for morphological changes and other abnormal fi ndings. After excluding patients with degenerative changes, non-degenerative pathologies were evaluated. Data was entered in predesigned proforma and analysis was done with SPSS 21.0.There were 183 patients who met the inclusion criteria and were included in the study. The mean age of the patients was 51.23 ±16.86 years. Compression fracture of the vertebra was the most common non-degenerative changes accounting for 34% cases followed by spinal meningeal cysts (26%) and infection (14%). Fractures were more common in upper lumbar level as compared to lower lumbar levels. Meningeal cysts were noted to involve the sacral spinal canal more frequently followed by lower lumbar levels. Infective lesions were equally distributed throughout the lumbar spine. Hemangioma was common lesion involving 16% of cases. Lumbosacral transitional vertebra was seen in 7(3.8%) patients.The common non-degenerative pathoanatomical changes associated with low back pain were traumatic lesion, infection, neoplastic lesion and lumbosacral transitional vertebra.Nepal Journal of Neuroscience 12:59-62, 2015

scholarly journals The pediatric patient at a maxillofacial service: eye prosthesis

2006 ◽  
Vol 20 (3) ◽  
pp. 247-251 ◽  
Author(s):  
Beatriz Silva Câmara Mattos ◽  
Maria Cecília Montagna ◽  
Clemente da Silva Fernandes ◽  
Antonio Carlos Lorenz Sabóia
Keyword(s):  
Statistical Significance ◽  
Age Groups ◽  
Age Group ◽  
Significance Level ◽  
Gender And Age ◽  
Child Patient ◽  
Eye Prosthesis ◽  
School Of Dentistry ◽  
Prosthetic Eye ◽  
Orbital Region

Congenital absence or loss of the ocular globe during childhood causes psycho-social and cosmetic disorders and compromise the normal development of the orbital region. The literature relating to congenital or acquired etiology, due to trauma or disease, demonstrates the necessity of prevention and early detection in order to minimize the sequelae and disturbances in orbital growth. Installation of an eye prosthesis is essential to the rehabilitation process, so as to produce satisfactory development of the region. In order to characterize a profile of the child patient with this condition, a survey was carried out at the Prosthetic Eye sector, Out-patient Clinic, Discipline of Maxillofacial Prosthodontics, School of Dentistry, University of São Paulo (FOUSP), during the period from 1988 to 2003. The 124 (14.02%) patients within the age group of 0-13 years registered for ocular prosthesis were divided into a first group of 64 patients (51.62%) with 0-7 years, and a second group of 60 patients (48.38%) with 8-13 years. Fifty nine were girls and 65 were boys. No statistical significance was observed regarding the distribution of genders in the two analyzed age groups (p = 0.069). However, there was statistical significance at the level of 0.01 in relation to etiology, with higher prevalence of congenital and pathological disturbances in the younger group and traumatic occurrences in the older group. The etiology also presented variation according to the gender, at the significance level of 0.05, where girls presented three times less trauma than boys in the older age group. The necessity of prosthetic ocular repair was evenly distributed along the childhood period and the eye losses that required prosthetic treatment equally affected both genders. However, the etiology of eye loss varied according to the considered gender and age bracket.

scholarly journals Use and traditional knowledge of Byrsonima crassifolia and B. coccolobifolia (Malpighiaceae) in a Makuxi community of the Roraima savanna, northern Brazil

2017 ◽  
Vol 47 (2) ◽  
pp. 133-140
Author(s):  
Rodrigo Leonardo Costa de OLIVEIRA ◽  
Veridiana Vizoni SCUDELLER ◽  
Reinaldo Imbrozio BARBOSA
Keyword(s):  
Age Groups ◽  
Indigenous Communities ◽  
Ethnobotanical Study ◽  
Structured Interviews ◽  
Adult Men ◽  
Fruit Species ◽  
Byrsonima Crassifolia ◽  
Gender And Age ◽  
Northern Brazil ◽  
Indigenous Land

ABSTRACT Byrsonima crassifolia and B. coccolobifolia, popularly known as mirixis, muricis, mantecos or nances, are common fruit species in the Amazonian savannas. Their fruits are used in the preparation of juices and other beverages, while the other parts of the plants are used for different purposes in some indigenous communities. The aim of the present ethnobotanical study was to investigate the knowledge and traditional uses of mirixis in the Darora Indigenous Community, of the Makuxi ethnicity, in the São Marcos Indigenous Land, state of Roraima, northern Brazil. The knowledge on these species among the residents was analyzed considering their gender and age. A survey was carried out by means of semi-structured interviews with 60 respondents (36 men and 24 women), between 18 and 84 years of age. Data from the interviewees was compared between genders and two age groups (< 40 and ≥ 40 years of age). Ethnobotanical indices (Informant diversity value; Informant equability value) were calculated, and no significant differences were found in the diversity of uses between genders (U = 283.0000, p > 0.05) and age groups (U = 359.5000, p > 0.05), indicating that the knowledge on the species is evenly distributed among residents. Results show that both species are used for different purposes in the food, fuelwood and medicinal categories in the Darora Community, and this knowledge is widely shared among adult men and women of all ages.

scholarly journals Validity, reliability, and measurement invariance of an adapted short version of the HIV stigma scale among perinatally HIV infected adolescents at the Kenyan coast

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Stanley W. Wanjala ◽  
Derrick Ssewanyana ◽  
Patrick N. Mwangala ◽  
Carophine Nasambu ◽  
Esther Chongwo ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Confirmatory Factor Analysis ◽  
Measurement Invariance ◽  
Age Groups ◽  
Hiv Stigma ◽  
Short Version ◽  
Stigma Scale ◽  
Gender And Age ◽  
Confirmatory Factor ◽  
Kenyan Coast

Abstract Background There is a dearth of instruments that have been developed and validated for use with children living with HIV under the age of 17 years in the Kenyan context. We examined the psychometric properties and measurement invariance of a short version of the Berger HIV stigma scale administered to perinatally HIV-infected adolescents in a rural setting on the Kenyan coast. Methods A cross-sectional study was conducted among 201 perinatally HIV-infected adolescents aged 12–17 years between November 2017 and October 2018. A short version of the Berger HIV stigma scale (HSS-40) containing twelve items (HSS-12) covering the four dimensions of stigma was evaluated. The psychometric assessment included exploratory factor analysis, confirmatory factor analysis (CFA), and multi-group CFA. Additionally, scale reliability was evaluated as internal consistency by calculating Cronbach’s alpha. Results Evaluation of the reliability and construct validity of the HSS-12 indicated insufficient reliability on three of the four subscales. Consequently, Exploratory Factor Analysis (EFA) was conducted to identify problematic items and determine ways to enhance the scale’s reliability. Based on the EFA results, two items were dropped. The Swahili version of this new 10-item HIV stigma scale (HSS-10) demonstrated excellent internal consistency with a Cronbach alpha of 0.86 (95% confidence interval (CI) 0.84–0.89). Confirmatory Factor Analysis indicated that a unidimensional model best fitted the data. The HSS-10 presented a good fit (overall Comparative Fit Index = 0.976, Tucker Lewis Index = 0.969, Root Mean Square Error of Approximation = 0.040, Standardised Root Mean Residual = 0.045). Additionally, multi-group CFA indicated measurement invariance across gender and age groups at the strict invariance level as ΔCFI was ≤ 0.01. Conclusion Our findings indicate that the HSS-10 has good psychometric properties and is appropriate for evaluating HIV stigma among perinatally HIV-infected adolescents on the Kenyan coast. Further, study results support the unidimensional model and measurement invariance across gender and age groups of the HSS-10 measure.

scholarly journals Population aging is characteristic component of modern demographic processes

2018 ◽  
Vol 35 (6) ◽  
pp. 36-42
Author(s):  
M. Ya. Podluzhnaya ◽  
E. A. Voronova ◽  
N. V. Isaeva ◽  
E. A. Rudakova
Keyword(s):  
Russian Federation ◽  
Population Aging ◽  
Age Groups ◽  
Older Age ◽  
Gender And Age ◽  
Demographic Indices ◽  
Perm Krai ◽  
Demographic Processes ◽  
The Russian Federation

Aim. To analyze the demographic indices in connection with aging of the population in Perm Krai and the Russian Federation and as a result – to single out problems and ways of solution. Materials and methods. Calculation and dynamic analysis of reproduction of the population in Perm Krai and the Russian Federation over the period of 2005 – 2017 was performed using official statistic data in connection with gender-and-age-specific characterization of the population. Results. The processes of aging of the population were estimated from demographic positions. Socioeconomic problems, associated with them, were singled out, the ways of their solving were determined in accordance with national projects regarding health and health care. Conclusions. At the expense of growing index of expected average life, decrease in fertility and birth rate there is observed accumulation of older age groups of the population, i.e. process of aging. It, naturally, results in growth of chronic pathology, mortality not only in the older age periods but also in the able-bodied part of the population, thus, reducing working potential.

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