Different Geographic Locations (different + geographic_locations)

Distribution by Scientific Domains


Selected Abstracts


Women in the Urban Informal Sector: Perpetuation of Meagre Earnings

DEVELOPMENT AND CHANGE, Issue 2 2005
Arup Mitra
The argument of exploitation of women workers in the labour market notwithstanding, this article examines whether women in India are unable to participate fully in the labour market because they are required to combine their household activities with income yielding jobs. They are constrained to work in the neighbourhood of their residence (the location of the residence having been decided upon by male family members), and can access jobs only through informal contacts (which usually means they end up in jobs similar to those of the contact persons), both of which reduce their bargaining power considerably. The tendency for specialized activities to be concentrated in different geographic locations of a city further restricts the possibility of women workers being engaged in diverse jobs and thus aggravates the situation of an excess supply of labour in a particular activity. Constrained choice, limited contacts of women and physical segmentation of the labour market perpetuate forces that entrap women workers in a low-income situation with worse outcomes than those of their male counterparts. Consequently with greater intensity of work they still continue to receive low wages, while residual participation in the labour market restricts the possibilities of skill formation and upward mobility. All of these factors offer a substantive basis for policy recommendations. [source]


Genetic variations among Mycoplasma bovis strains isolated from Danish cattle

FEMS MICROBIOLOGY LETTERS, Issue 1 2000
Lughano J.M. Kusiluka
Abstract The genetic heterogeneity of Mycoplasma bovis strains isolated in Denmark over a 17-year period was investigated. Forty-two field strains isolated from different geographic locations and specimens, including strains from 21 herds involved in two outbreaks of M. bovis -induced mastitis, and the type strain of M. bovis (PG45T) were assayed for variations in the BglII and MfeI restriction sites in the chromosomal DNA by using the amplified fragment length polymorphism (AFLP) fingerprinting technique. The obtained genomic fingerprints consisted of 62,68 AFLP fragments in the size range of 50,500 bp. Among the analyzed strains, 18 different AFLP profiles were detected. The similarity between individual fingerprints, calculated by Dice similarity coefficient, ranged from 0.9 to 1.0. Twenty-five strains, including 23 which were isolated during two outbreaks of M. bovis -induced mastitis which occurred 2 years apart, showed indistinguishable AFLP patterns. More genetic diversity was observed among the recent strains. The similarity of the genotypes of the field strains to that of the M. bovis type strain (PG45T) was 97.7%. The results of this study have demonstrated a remarkable genomic homogeneity of Danish strains of M. bovis that were probably epidemiologically related and which have remained stable for a considerable length of time. Furthermore, this study has demonstrated that AFLP can be used for genomic fingerprinting and discrimination of M. bovis strains. [source]


A Multivariate Validation of the Defining Characteristics of Fatigue

INTERNATIONAL JOURNAL OF NURSING TERMINOLOGIES AND CLASSIFICATION, Issue 1 2001
Mei Fu MSN
PURPOSE. To validate the nursing diagnosis fatigue by providing evidence to identify, confirm, and consolidate the defining characteristics. METHODS. The Revised Piper Fatigue Scale and the Schwartz Measurement of Fatigue scales were used to collect data from four groups of healthy women (N = 182). Data were analyzed by maximum-likelihood factor analysis with varimax rotation, and major and minor defining characteristics were identified and clustered. FINDINGS. The identified defining characteristics tended to group into the dimensions identified in prior fatigue studies. Although the majority of the NANDA defining characteristics were validated, differences were found. CONCLUSIONS. atigue is a multidimensional construct. Replication of the study with a variety of samples from different geographic locations and a variety of patient populations will further cross-validate the defining characteristics of fatigue. PRACTICE IMPLICATIONS. Fatigue is a commonly experienced phenomenon in both health and illness. As the knowledge base about fatigue builds, so will the accuracy of nursing assessments and the effectiveness of nursing interventions. [source]


Escherichia coli serogroup O26 , a new look at an old adversary

JOURNAL OF APPLIED MICROBIOLOGY, Issue 1 2008
C. Jenkins
Summary Escherichia coli serogroup O26 played an important part in the early work on Verocytotoxin and is an established diarrhoeal pathogen. Recently, Verocytotoxigenic E. coli (VTEC) O26 has been increasingly associated with diarrhoeal disease and frequently linked to outbreaks and cases of haemolytic uraemic syndrome (HUS). This review investigates the pathogenicity, geographical distribution, changing epidemiology, routes of transmission and improved detection of VTEC O26. Laboratory data on VTEC O26 isolates and clinical data on HUS suggest a true difference in the incidence of VTEC O26 in different geographic locations. However, few diagnostic laboratories use molecular methods to detect VTEC and so it is difficult to assess the role of VTEC O26 in causing diarrhoeal disease. VTEC O26 is frequently found in the cattle population but rarely in food. However, the small number of outbreaks analysed to date are thought to be food-borne rather than associated with direct or indirect contact with livestock or their faeces. The increase in awareness of VTEC O26 in the clinical and veterinary setting has coincided with the development of novel techniques that have improved our ability to detect and characterize this pathogen. [source]


Subgingival microbiota of chronic periodontitis subjects from different geographic locations

JOURNAL OF CLINICAL PERIODONTOLOGY, Issue 11 2004
A. D. Haffajee
Abstract Background: Most clinical studies assume that the subgingival microbiota is similar from one geographic location to another. The purpose of the present investigation was to examine the composition of the subgingival microbiota in chronic periodontitis subjects from four countries. Method: Subjects with chronic periodontitis (N, Sweden=101; USA=115; Brazil=58; Chile=26) were recruited. Subjects were measured at baseline for plaque, gingivitis, bleeding on probing (BOP), suppuration, pocket depth (PD) and attachment level (AL) at six sites per tooth. Subgingival plaque samples taken from the mesial aspect of each tooth at baseline were individually analyzed for their content of 40 bacterial species using checkerboard DNA,DNA hybridization (total samples=6036). % DNA probe counts comprised by each species was determined for each site and averaged across sites in each subject. Significance of differences in proportions of each species among countries was determined using ancova adjusting for age, mean pocket depth, gender and smoking status. p- Values were adjusted for multiple comparisons. Results: On average, all species were detected in samples from subjects in the four countries. Thirteen species differed significantly in adjusted mean proportions among countries even after adjusting for multiple comparisons. Porphyromonas gingivalis, one species that differed in proportions among countries, comprised adjusted means of 7.5, 11.9, 1.6 and 6.6% of the microbiota in subjects from Brazil, Chile, Sweden and USA (p<0.001), while mean proportions of Treponema denticola were 6.7, 4.2, 0.8 and 2.3, respectively (p<0.001). In contrast, a key periodontal pathogen, Tannerella forsythensis, exhibited mean proportions ranging from 6.2,8.5% and did not differ significantly among countries. Besides these species, prominent species in Brazil were Actinomyces naeslundii genospecies 1 and 2 (8.4%, 7.2%) and Prevotella intermedia (6.5%); in Chile, Prevotella melaninogenica (6.4%) and Neisseria mucosa (5.3%); in Sweden A. naeslundii genospecies 2 (8.4%), Capnocytophaga gingivalis (7.1%) and Peptostreptococcus micros (5.0%); in USA A. naeslundii genospecies 2 (7.5%), P. intermedia (6.8%) and C. gingivalis (6.1%). Conclusions: The microbial profiles of subgingival plaque samples from chronic periodontitis subjects in four countries showed surprisingly marked differences. These differences persisted after adjusting for age, mean pocket depth, gender and smoking status. [source]


Diversity and Geographical Distribution of Phytoplasmas infecting China-tree in Argentina

JOURNAL OF PHYTOPATHOLOGY, Issue 2 2007
J. D. Arneodo
Abstract Yellows diseases associated with phytoplasmas cause high mortality in China-tree (Melia azedarach) in Argentina, but there has been no previous large-scale survey to determine their diversity and geographical distribution. To assess the presence and identity of phytoplasmas affecting this species throughout the country, 425 samples of symptomatic trees collected at different geographic locations were analysed by a polymerase chain reaction (using universal and group-specific primers) and restriction fragment length polymorphism. Phytoplasmas belonging to 16SrIII-B group were detected at almost every location sampled, whereas 16SrXIII-C group phytoplasmas, reported for the first time in Argentina, were only found in two regions sharing similar agro-ecological characteristics (Northeast provinces and Tucumán). Double infections with 16SrIII-B and 16SrXIII-C group phytoplasmas were also recorded. Nucleotide sequencing of the 16S rDNA of three Argentinian 16SrXIII-C group phytoplasma isolates revealed high identity (99.6,99.3%) with the CbY1 isolate reported from Bolivia. [source]


Fingerprint chromatogram analysis of Pseudostellaria heterophylla (Miq.) Pax root by high performance liquid chromatography

JOURNAL OF SEPARATION SCIENCE, JSS, Issue 14 2006
Chao Han
Abstract A simple and reliable high performance liquid chromatographic (HPLC) method has been developed and validated for the fingerprinting of extracts from the root of Pseudostellaria heterophylla (Miq.) Pax. HPLC with gradient elution was performed on an authentic reference standard of powdered P. heterophylla (Miq.) Pax root and 11 plant samples of the root were collected from different geographic locations. The HPLC chromatograms have been standardized through the selection and identification of reference peaks and the normalization of retention times and peak intensities of all the common peaks. The standardized HPLC fingerprints show high stability and reproducibility, and thus can be used effectively for the screening analysis or quality assessment of the root or its derived products. Similarity index calculations based on cosine angle values or correlation methods have been performed on the HPLC fingerprints. As a group, the fingerprints of the P. heterophylla (Miq.) Pax samples studied are highly correlated with closely similar fingerprints. Within the group, the samples can be further divided into subgroups based on hierarchical clustering analysis (HCA). Sample grouping based on HCA coincides nicely with those based on the geographical origins of the samples. The HPLC fingerprinting techniques thus have high potential in authentication or source-tracing types of applications. [source]


Genetic Diversity of Populations of Monilinia fructicola (Fungi, Ascomycota, Helotiales) from China

THE JOURNAL OF EUKARYOTIC MICROBIOLOGY, Issue 2 2010
JIN-YAN FAN
ABSTRACT. The genetic variation among 128 isolates of Monilinia fructicola (Fungi, Ascomycota, Helotiales) from China was analyzed using Inter-Simple Sequence Repeat (ISSR) markers and compared with those of samples from California, USA and New Zealand. A total of 72 reproducible DNA fragments were scored, of which 87.5% (63/72) were polymorphic. The Nei's gene diversity and Shannon's diversity indices of three Chinese regional populations were very similar to that from California. However, several differences were observed among geographic populations of M. fructicola from both within China and between China and California. The analysis of molecular variance (AMOVA) of isolates from different geographic locations suggested that most of the observed genetic variation was found within populations. Results of this study are inconsistent with the hypothesis that the Chinese populations of M. fructicola were derived from a single or few recent migrants from other countries. Instead, our results suggest that M. fructicola has been in China long before its first official recording in 2003. [source]


Standardizing care in medical oncology

CANCER, Issue 23 2009
Are Web-based systems the answer?
Abstract BACKGROUND: Medical oncology is embracing information technology to standardize care and improve patient outcomes, with a range of Web-based systems used internationally. The authors' aim was to determine the factors affecting the uptake and use of a Web-based protocol system for medical oncology in the Australian setting. METHODS: The authors conducted 50 interviews and observed medical oncology physicians, nurses, and pharmacists in their treatment setting at 6 hospitals in different geographic locations. RESULTS: The Web-based system plays a major role in guiding oncology treatment across participating sites. However, its use varies according to hospital location, clinician roles, and experience. A range of issues impact on clinicians' attitudes toward and use of the Web-based system. Important factors are clinician,specific (eg, their need for autonomy and perceptions of lack of time) or environmental (eg, hospital policy on protocol use, endorsement of the system, and the availability of appropriate infrastructure, such as sufficient computers). The level of education received regarding the system was also found to be integral to its ongoing use. CONCLUSIONS: Although the provision of high-quality evidence-based resources, electronic or otherwise, is essential for standardizing care and improving patient outcomes, the authors' findings demonstrate that this alone does not ensure uptake. It is important to understand end-users, the environment in which they operate, and the basic infrastructure required to implement such a system. Implementation must also be accompanied by continuing education and endorsement to ensure both long-term sustainability and use of the system to its full potential. Cancer 2009. © 2009 American Cancer Society. [source]