Academic literature on the topic 'ARF Western Region'
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Journal articles on the topic "ARF Western Region"
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Pathak, Harshavardhana Sunil, Sreedharan Krishnakumari Satheesh, Krishnaswamy Krishna Moorthy, and Ravi Shankar Nanjundiah. "Assessment of regional aerosol radiative effects under the SWAAMI campaign – Part 2: Clear-sky direct shortwave radiative forcing using multi-year assimilated data over the Indian subcontinent." Atmospheric Chemistry and Physics 20, no. 22 (November 23, 2020): 14237–52. http://dx.doi.org/10.5194/acp-20-14237-2020.
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Abstract. Clear-sky, direct shortwave aerosol radiative forcing (ARF) has been estimated over the Indian region, for the first time employing multi-year (2009–2013) gridded, assimilated aerosol products, as an important part of the South West Asian Aerosol Monsoon Interactions (SWAAMI) which is a joint Indo-UK research field campaign focused at understanding the variabilities in atmospheric aerosols and their interactions with the Indian summer monsoon. The aerosol datasets have been constructed following statistical assimilation of concurrent data from a dense network of ground-based observatories and multi-satellite products, as described in Part 1 of this two-part paper. The ARF, thus estimated, is assessed for its superiority or otherwise over other ARF estimates based on satellite-retrieved aerosol products, over the Indian region, by comparing the radiative fluxes (upward) at the top of the atmosphere (TOA) estimated using assimilated and satellite products with spatiotemporally matched radiative flux values provided by CERES (Clouds and Earth's Radiant Energy System) single-scan footprint (SSF) product. This clearly demonstrated improved accuracy of the forcing estimates using the assimilated vis-à-vis satellite-based aerosol datasets at regional, subregional and seasonal scales. The regional distribution of diurnally averaged ARF estimates has revealed (a) significant differences from similar estimates made using currently available satellite data, not only in terms of magnitude but also the sign of TOA forcing; (b) the largest magnitudes of surface cooling and atmospheric warming over the Indo-Gangetic Plain (IGP) and arid regions from north-western India; and (c) negative TOA forcing over most parts of the Indian region, except for three subregions – the IGP, north-western India and eastern parts of peninsular India where the TOA forcing changes to positive during pre-monsoon season. Aerosol-induced atmospheric warming rates, estimated using the assimilated data, demonstrate substantial spatial heterogeneities (∼0.2 to 2.0 K d−1) over the study domain with the IGP demonstrating relatively stronger atmospheric heating rates (∼0.6 to 2.0 K d−1). There exists a strong seasonality as well, with atmospheric warming being highest during pre-monsoon and lowest during winter seasons. It is to be noted that the present ARF estimates demonstrate substantially smaller uncertainties than their satellite counterparts, which is a natural consequence of reduced uncertainties in assimilated vis-à-vis satellite aerosol properties. The results demonstrate the potential application of the assimilated datasets and ARF estimates for improving accuracies of climate impact assessments at regional and subregional scales.
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Quinn, Anthony, Kent Ward, Vincent A. Fischetti, Mark Hemric, and Madeleine W. Cunningham. "Immunological Relationship between the Class I Epitope of Streptococcal M Protein and Myosin." Infection and Immunity 66, no. 9 (September 1, 1998): 4418–24. http://dx.doi.org/10.1128/iai.66.9.4418-4424.1998.
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ABSTRACT The class I epitope of streptococcal M protein is an epidemiological marker for acute rheumatic fever (ARF)-associated serotypes of group A streptococci and is recognized by anti-M protein monoclonal antibody (MAb) 10B6. Using MAb 10B6, we determined the relationship between the class I epitope of M protein and the α-helical coiled-coil protein myosin. MAb 10B6 reacted by enzyme-linked immunosorbent assay and Western blotting with human cardiac myosin and rabbit skeletal myosin and its heavy meromyosin (HMM) subfragment. Overlapping synthetic peptides of M5 protein were used to identify the region of M5 protein recognized by MAb 10B6. Two C repeat peptides (C2A and C3) containing the amino acid sequence KGLRRDLDASREAK reacted with MAb 10B6. Partial sequence identity, RRDL, was found in the HMM fragment of myosin, which reacted with MAb 10B6. However, not all peptides of M5 protein and myosin containing the RRDL sequence reacted with MAb 10B6. ARF sera and sera from uncomplicated pharyngitis (UNC) reacted with C repeat region peptides of M protein, while acute glomerulonephritis sera were not as reactive. Affinity-purified human antibody to peptide C3 reacted with myosin. The data demonstrate that the class I epitope of M protein is immunologically cross-reactive with myosin and the HMM subfragment, and antibodies to peptide C3 and myosin were present in ARF and UNC sera.
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O’Neil, Jennifer, Joelle Tchinda, Alejandro Gutierrez, Lisa Moreau, Keith McKenna, Richard Maser, Kwok-Kin Wong, et al. "Large Scale Copy Number Variation Upregulates the Expression of MYB in Human T-ALL." Blood 108, no. 11 (November 16, 2006): 1408. http://dx.doi.org/10.1182/blood.v108.11.1408.1408.
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Abstract Using comparative genome hybridization (array CGH), we have discovered a small area of increased copy number on the long arm of chromosome 6 in 8 out of 20 (40%) T-ALL cell lines. The region of increased copy number is very small, containing only one gene, MYB, the cellular homolog of the avian oncogene v-myb. By performing fiber-FISH on these cell lines, we have shown that the increased copy number results from a discrete tandem duplication of the MYB gene on one allele. Although myb is a frequent target of retroviral insertional activation in screens for oncogenes whose overexpression accelerates the onset of murine T-ALL, its overexpression and increased copy number has not previously been implicated in human T-ALL. Using gene expression profiling and Western blotting, we have demonstrated that the duplication in human T-ALL results in increased levels of MYB expression. Furthermore, using quantitative PCR we have confirmed that this tandem duplication occurs in primary human T-ALL samples. In our studies to date, MYB tandem duplication and overexpression appears to occur as part of the major multistep molecular pathway in T-ALL that affects a majority of cases, in which the leukemic cells also have TAL1/SCL and LMO1/2 overexpression, and NOTCH1 gene activating mutations, together with homozygous deletion of the INK4A/ARF locus. We are currently determining the mechanism through which MYB overexpression contributes to the pathogenesis of T-ALL by siRNA knockdown in T-ALL cell lines. Our finding of MYB tandem gene duplication differs from classic forms of oncogene amplification involving double minutes or homogenously staining regions. It is possible that MYB copy number is increased through a novel somatic mechanism of allele-specific, tandem duplication of a small genomic region during the process of malignant transformation. Another possibility is suggested by recent studies documenting that inherited large-scale copy number variation (CNV) accounts for much of the phenotypic diversity within human populations. Further studies will be needed to determine whether MYB tandem duplication is present in the germline DNA of T-ALL patients, which if identified, would provide the first example of an inherited CNV functioning as a mechanism of cancer susceptibility.
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Gaikwad, Sushma, and Tabassum Khan. "PHYTOCHEMISTRY AND ANTIBACTERIAL ACTIVITY OF TRADITIONAL MEDICINAL PLANT ZIZIPHUS RUGOSA LAM." Indian Drugs 60, no. 03 (April 7, 2023): 40–46. http://dx.doi.org/10.53879/id.60.03.13631.
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Ziziphus rugosa Lam. a member of the Rhamnaceae family, is found in the semi-evergreen forests of the Western Ghat region, India. This plant is used in many traditional formulations owing to its benefits in miscarriage, misconception, syphilis, tachycardia, diarrhea, flatulence, dropsy, skin diseases, boils, mouth ulcer and hysteria. Successive extracts of Z. rugosa Lam. leaves were prepared using solvents of increasing polarity ranging from petroleum ether (60-80 °C) to water using the Soxhlet extraction method. The methanol extract of the leaves was used to prepare alkaloid rich fraction as per reported method and the total alkaloid content determined by UV-Vis spectroscopy. The extracts and the ARF were screened for antibacterial activity using selected Gram positive and Gram negative bacterial strains and ciprofloxacin as the reference standard. HR-LCMS was performed to identify the phytoconstituents present in the alkaloid rich fraction. Phytochemical studies of the extracts indicated the presence of tannins, phenolics, alkaloids, saponins, flavonoids and glycosides. The antimicrobial screening data indicated the extracts to exhibit concentration dependent inhibition of the test bacteria. The alkaloid rich fraction exhibited the best activity, significantly better than the solvent extracts across the selected panel of bacteria. The methanol and aqueous extracts showed moderate activity while the dichloromethane, pet ether and the ethyl acetate extracts were weakly active. HR-LCMS studies of the alkaloid rich fraction indicated the presence of several alkaloids detected for the first time in this plant. The observed bioactivity and traditional use warrants more investigations on this plant that would result in isolation and identification of new actives from this plant of immense traditional utility and maximizing its spectrum of utility.
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Swaminathan, Srividya, Chuanxin Huang, Bjorn Titz, Maike Buchner, Huimin Geng, Thomas G. Graeber, Cheryl L. Willman, Kazuhiko Igarashi, Ari Melnick, and Markus Muschen. "BACH2 Mediates Early B Cell Differentiation and Oncogene-Induced Senescence in Acute Lymphoblastic Leukemia." Blood 118, no. 21 (November 18, 2011): 562. http://dx.doi.org/10.1182/blood.v118.21.562.562.
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Abstract Abstract 562FN2 Background: The BACH2 (BTB and CNC homology, basic leucine zipper transcription factor 2) transcription factor is required for class-switch recombination and somatic hypermutation of immunoglobulin genes during affinity maturation of mature germinal center B cells. Interestingly, we and others found that BACH2 is strongly upregulated in BCR-ABL1-transformed acute lymphoblastic leukemia (Ph+ ALL) cells upon treatment with tyrosine kinase inhibitors (TKI). Results: Bach2 mRNA levels are significantly lower in Ph+ ALL (n=72) compared to normal human bone marrow pre-B cells (n=10). We next studied 49 samples pairs from patients with childhood ALL at diagnosis and relapse. In 44 of these sample pairs, the relapse sample showed drastically reduced mRNA levels of Bach2 (p=0.019), suggesting that loss of BACH2 expression is associated with relapse of childhood ALL. Consistent with these findings, an independent study (Children's Oncology Group; NCT00005603) demonstrated that BACH2 mRNA levels in childhood ALL samples at diagnosis negatively correlated with early minimal residual disease (MRD) findings on day 29 (n=207; p<0.0001). Compared to normal pre-B cells (n=5), CpG islands in the BACH2 promoter were hypermethylated in Ph+ ALL cells (n=70). A detailed sequence analysis of the BACH2 coding region in 10 primary cases of Ph+ ALL revealed 7 unique point mutations including 5 amino acid changes in the BACH2 BTB domain. These findings suggest that BACH2 is affected by somatic mutations in a fraction of cases of Ph+ ALL. To study the role of Bach2 in pre-B ALL in a genetic experiment, we transformed pre-B cells from Bach2−/− mice with BCR-ABL1. An Affymetrix GeneChip analysis revealed that many of the genes that are differentially expressed between Bach2+/+ and Bach2−/− ALL cells are shared with a common gene expression signature reflecting TKI-treatment and inducible deletion of Myc or Stat5a/Stat5b. Interestingly, Bach2−/− normal pre-B cells lack the ability to upregulate expression of Rag1 and Rag2. The two Rag enzymes are required for Vk-Jk gene recombination and as a consequence, Bach2−/− pre-B cells fail to differentiate into k light chain expressing B cells. Besides this unexpected role in early B cell differentiation, quantitative RT-PCR and Western blot confirmed that Bach2 is also required for expression of the tumor suppressors Cdkn2a (Arf), p53 and Btg2. Consistent with extremely low protein levels of Arf and p53 in Bach2−/− leukemia cells, Bach2−/− ALL cells are more resistant to Imatinib-treatment, more actively proliferating (increased S-phase; p=0.02) and exhibit a ∼90-fold increased ability to form colonies in methyl cellulose (p=0.001). While BCR-ABL1-transformed pre-B ALL cells already express Myc at high levels, forced overexpression of Myc through a retroviral vector results in oncogene-induced senescence (OIS; senescence-associated b-galactosidase+) and subsequent apoptosis (Annexin V+). Whereas Bach2+/+ leukemia cells are non-permissive to forced Myc expression and die within four days following OIS, Bach2−/− ALL cells tolerate forced expression of Myc and evade OIS and subsequent cell death. Similarly, overexpression of Myc alone fails to transform Bach2+/+ pre-B cells. By contrast, retroviral overexpression of Myc results in rapid transformation and growth factor-independence of Bach2−/− pre-B cells. Bach2−/− Myc-high pre-B cells cause fatal leukemia in 100% of recipient mice within 22 days, whereas all mice that received Bach2+/+ Myc-high pre-B cells survived without signs of disease until day 67, when all mice were sacrificed and analyzed for MRD by flow cytometry and PCR. No evidence of MRD was detected in most mice injected with Bach2+/+ Myc-high pre-B cells. Three mice had positive MRD PCR findings, however, at 4 log orders below findings in mice injected with Bach2−/− Myc-high pre-B cells. Conclusions: These findings collectively identify Bach2 as a barrier mechanism against malignant transformation of pre-B cells. Bach2 is required for induction of Arf and p53 expression in the context of OIS. BACH2 is often hypermethylated at its promoter or somatically mutated in regions encoding its BTB domain. Consistent with these findings, lack of Bach2 mRNA expression is predictive of positive MRD at day 29 and associated with relapse of childhood ALL. Disclosures: No relevant conflicts of interest to declare.
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Lin, Min, Erin Trottier, and John Pasick. "Antibody Responses of Pigs to Defined Erns Fragments after Infection with Classical Swine Fever Virus." Clinical Diagnostic Laboratory Immunology 12, no. 1 (January 2005): 180–86. http://dx.doi.org/10.1128/cdli.12.1.180-186.2005.
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ABSTRACT Antibody responses of pigs to defined Erns fragments, after classical swine fever virus (CSFV) infection, were studied by using an enzyme-linked immunosorbent assay (ELISA). Selection of various Erns fragments was based on an immunodominant Erns region encompassing three overlapping antigenic regions, amino acids 65 to 145 (Erns aa 65-145) (AR1), 84 to 160 (Erns aa 84-160) (AR2), and 109 to 220 (Erns aa 10 9-220) (AR3), identified earlier by our group (M. Lin, E. Trottier, J. Pasick, and M. Sabara, J. Biochem., in press). Defined Erns fragments, including AR1, AR2, AR3, Erns aa 65-160 (AR12), Erns aa 84-220 (AR23), Erns aa 65-220 (AR123), Erns aa 109-145 (the consensus region defined by the three overlapping regions), and Erns aa 109-160 (a fragment 15 amino acids larger than the consensus region), were expressed in Escherichia coli, purified by nickel chelate affinity chromatography, and used to measure antibody responses in 20 sera serially collected from pigs experimentally infected with CSFV. Based on the optimum cutoffs determined by receiver operating characteristic analysis after testing 238 negative field sera from Canadian sources, all the Erns fragments were capable of distinguishing positive from negative antibody responses with sensitivities ranging between 75 and 90% and specificities ranging between 83.2 and 100%. Detection of antibody responses to refolded Erns aa 109-145 and Erns aa 109-160 by ELISA (this study) but not by Western blots (Lin et al., in press) indicated that the epitopes within the consensus region are conformational. When cutoff values were raised to give a specificity of 100%, four Erns fragments (AR2, AR23, Erns aa 109-145, and Erns aa 109-160) offered much higher sensitivities (75 to 90%) than those obtained with other fragments (20 to 65%). Erns aa 109-145 and Erns aa 109-160 were capable of detecting antibody responses in infected pigs as early as 7 days postinfection. Demonstration of antibody responses to either one of the four fragments can thus be an alternative to use of the full-length protein in ELISA for serological diagnosis of CSFV infection. An advantage of such a test would be its utilization for serological survey in a classical swine fever-free country (e.g., Canada) in biocontainment level 2 laboratories.
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Skorokhod, Iryna, Petro Skrypchuk, Halyna Shpak, Vasyl Chemerys, and Roman Yakubiv. "Assessment of efficiency of the organic production development in Western Polissia regions." Agricultural and Resource Economics: International Scientific E-Journal 8, no. 4 (December 20, 2022): 134–50. http://dx.doi.org/10.51599/are.2022.08.04.06.
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Purpose. The purpose of the article is to assess the socio-ecological and economic efficiency of the organic land-use through the economic substantiation of the organic production development in the Western Polissia regions and its impact on the population health.
Methodology / approach. We used general scientific and special research methods for the study. With methods of comparisons, extrapolations, correlations and the regression analysis, we could give an ecological and economical estimate for costs using for the organic land-use engineering and for the feasibility evaluation of the organic production development. The synthesis method was useful in determining the socio-economic efficiency of growing organic products. The State Statistics Service data, collections of health indicators and the activities of medical institutions in the Rivne region became the initial basis for the present study.
Results. We made the scientific rationale for the organic production development in the Western Polissia, namely, in Volyn, Rivne, Zhytomyr and Kyiv regions, determined the stabilizing costs for the quality condition of 1 hectare of agricultural land. Moreover, the absence of a direct and close relationship between the agro-ecological indicators of soils and the rate of land certification was proved. It was proposed to use the economic criteria for the agricultural land suitability relative to the organic production, as they are defined as informational rather than restrictive. Mathematical modeling helped to evidence the existence of a relationship between the volume of mineral fertilizers applied per hectare of sown area and the level of the population oncological morbidity exemplified by Rivne region, resulting in mathematical models obtained and applied for the predictive estimates of health problems among the population in Rivne region for the coming years.
Originality / scientific novelty. For the first time, the assessment of the socio-economic efficiency of the organic land use was carried out with the involvement of economic justification for the development of organic production in Western Polissia regions and its impact on the population health.
Practical value / implications. Key results of the study are primarily actionable for determining the ecological and economic substantiation of the development advisability of the organic production through the implementation of the ecological and economic appraisal of costs using for the organic land-use engineering. In addition to it, another key result is to set the level of reduction in the population morbidity due to a decrease in mineral fertilizers applicable per hectare of sown area.
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Naty, Alexander. "Environment, Society and the State in Western Eritrea." Africa 72, no. 4 (November 2002): 569–97. http://dx.doi.org/10.3366/afr.2002.72.4.569.
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AbstractThis article examines the relationship between the environment, society and the state in the Gash–Setit region of western Eritrea. Through an analysis of the environmental narrative of the local communities and the state, it explores the factors that have contributed to the environmental crisis in the region. These factors include population resettlement, the agricultural development policy of the state, war, drought and the collapse of traditional management of the environment. The combined effects have created environmental stresses which have far-reaching implications for state–society and inter-community relations. The analysis draws on historical, cultural and political dimensions in seeking to understand relations between the environment, society and the state.
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Zhao, Heng, Midori A. Yenari, Danye Cheng, Odmara L. Barreto-Chang, Robert M. Sapolsky, and Gary K. Steinberg. "Bcl-2 Transfection via Herpes Simplex Virus Blocks Apoptosis-Inducing Factor Translocation after Focal Ischemia in the Rat." Journal of Cerebral Blood Flow & Metabolism 24, no. 6 (June 2004): 681–92. http://dx.doi.org/10.1097/01.wcb.0000127161.89708.a5.
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Apoptosis plays a critical role in many neurologic diseases, including stroke. Cytochrome c release and activation of various caspases are known to occur after focal and global ischemia. However, recent reports indicate that caspase-independent pathways may also be involved in ischemic damage. Apoptosis-inducing factor (AIF) is a novel flavoprotein that helps mediate caspase-independent apoptotic cell death. AIF translocates from mitochondria to nuclei where it induces caspase-independent DNA fragmentation. Bcl-2, a mitochondrial membrane protein, protects against apoptotic and necrotic death induced by different insults, including cerebral ischemia. In the present study, Western blots confirmed that AIF was normally confined to mitochondria but translocated to nuclei or cytosol 8, 24, and 48 hours after onset of ischemia. Overall, AIF protein levels also increased after stroke. Confocal microscopy further demonstrated that nuclear AIF translocation occurred in the peri-infarct region but not in the ischemic core where only some cytosolic AIF release was observed. Our data also suggest that AIF translocated into nuclei after cytochrome c was released into the cytosol. Bcl-2 transfection in the peri-infarct region blocked nuclear AIF translocation and improved cortical neuron survival.
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Biermann, Olivia, Knut Lönnroth, Maxine Caws, and Kerri Viney. "Factors influencing active tuberculosis case-finding policy development and implementation: a scoping review." BMJ Open 9, no. 12 (December 2019): e031284. http://dx.doi.org/10.1136/bmjopen-2019-031284.
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ObjectiveTo explore antecedents, components and influencing factors on active case-finding (ACF) policy development and implementation.DesignScoping review, searching MEDLINE, Web of Science, the Cochrane Database of Systematic Reviews and the World Health Organization (WHO) Library from January 1968 to January 2018. We excluded studies focusing on latent tuberculosis (TB) infection, passive case-finding, childhood TB and studies about effectiveness, yield, accuracy and impact without descriptions of how this evidence has/could influence ACF policy or implementation. We included any type of study written in English, and conducted frequency and thematic analyses.ResultsSeventy-three articles fulfilled our eligibility criteria. Most (67%) were published after 2010. The studies were conducted in all WHO regions, but primarily in Africa (22%), Europe (23%) and the Western-Pacific region (12%). Forty-one percent of the studies were classified as quantitative, followed by reviews (22%) and qualitative studies (12%). Most articles focused on ACF for tuberculosis contacts (25%) or migrants (32%). Fourteen percent of the articles described community-based screening of high-risk populations. Fifty-nine percent of studies reported influencing factors for ACF implementation; mostly linked to the health system (eg, resources) and the community/individual (eg, social determinants of health). Only two articles highlighted factors influencing ACF policy development (eg, politics). Six articles described WHO’s ACF-related recommendations as important antecedent for ACF. Key components of successful ACF implementation include health system capacity, mechanisms for integration, education and collaboration for ACF.ConclusionWe identified some main themes regarding the antecedents, components and influencing factors for ACF policy development and implementation. While we know much about facilitators and barriers for ACF policy implementation, we know less abouthowto strengthen those facilitators andhowto overcome those barriers. A major knowledge gap remains when it comes to understanding which contextual factors influence ACF policy development. Research is required to understand, inform and improve ACF policy development and implementation.
Dissertations / Theses on the topic "ARF Western Region"
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Rosenbaum, Gideon. "Tectonic reconstruction of the Alpine orogen in the western Mediterranean region." Monash University, School of Geosciences, 2003. http://arrow.monash.edu.au/hdl/1959.1/9481.
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Price, Heather Alynn. "Context and variation : upper paleolithic visual imagery in the Western Languedoc-Roussillon region of Southern France /." Ann Arbor (Mich.) : UMI dissertation services, 2000. http://catalogue.bnf.fr/ark:/12148/cb40017723z.
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Geoghegan, Mary Denise. "A Review of whether peri-operative nursing records used in the Western Cape Metropolitan health region are in line with international standards and recommendations for standard content and design characteristics for the Western Cape." Master's thesis, University of Cape Town, 2000. http://hdl.handle.net/11427/2948.
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Bibliography: leaves 180-193.Peri-operative nursing is faced with increasing pressure to improve productivity while coping with diminishing resources. Nurses have to work harder and faster while still maintaining a high standard of patient care. This emphasises the need for comprehensive, yet easy-to-use peri-operative nursing records. A descriptive, non experimental research design was used to survey peri-operative nursing records used in the Western Cape Metropolitan Health Region and content and design characteristics were identified. A comparison was made between these records and the standard set by the Association of Operating Room Nurses (AORN) in the United States of America. The criteria stipulated by the AORN standard were found to be relevant to South African peri-operative nursing practice with a few exceptions. In spite of this, the perioperative nursing records reviewed did not compare well with the AORN standard and were particularly deficient in risk management areas such as potential injury related to positioning the patient, and electrical and physical hazards. Content criteria not mentioned by the standard, but appearing in the local records were identified and certain aspects of design recognised in the literature were also discussed. Recommendations for a South African standard for peri-operative nursing records were made, as well a$ recommendations for further research into the use and design of peri-operative nursing records.
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Merideth, Craig. "An archaeometallurgical survey for ancient tin mines and smelting sites in Spain and Portugal : Mid-Central Western Iberian geographical region, 1990-1995 /." Oxford : BAR, 1998. http://catalogue.bnf.fr/ark:/12148/cb37032249b.
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Dietz, Antonius Johannes. "Pastoralists in dire straits : survival strategies and external interventions in a semi-arid region at the Kenya-Uganda border : Western Pokot, 1900-1986 /." Amsterdam : Instituut voor Sociale Geografie, Universiteit van Amsterdam, 1987. http://catalogue.bnf.fr/ark:/12148/cb349881726.
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Miller, Christopher J. "Use of Satellite Imagery and GIS to Model Brood-Rearing Habitat for Rio Grande Wild Turkey Populations Occurring in the Western Cross Timbers Region of Texas." Thesis, University of North Texas, 2002. https://digital.library.unt.edu/ark:/67531/metadc3174/.
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Remote sensing and GIS have become standard tools for evaluating spatial components of wildlife habitats. These techniques were implemented to evaluate Rio Grande wild turkey (Meleagris gallopavo) poult-rearing habitat in the Western Cross Timbers region of Texas. Texas Parks and Wildlife (TPWD) random roving turkey counts for 1987-1989 and 1998-2000 were selected, indicating locations where hens with poults were observed. Satellite imagery from 1988 and 1999 was classified and then processed with Patch Analyst. To add robustness, stream, road and census population densities were also evaluated for each turkey location. Analysis of the 1988 canopy cover image, comparing observed locations with randomly-selected habitat cells (N = 20) indicated significant differences (p <.05) for patch edge variables. Mean patch edge was significantly greater for habitat locations where hens with poults were observed than for those selected at random. Spatial data for 1999 did not indicate a significant difference (p < .05) between sampling groups (observed vs. random, N = 30). Significant differences (p <.05) did occur for turkey locations observed in both 1988 and 1999 (N = 7). This demonstrates the adaptability of wild turkey hens, as habitats change over time, hens continued to visit the same locations even though the habitat had significantly changed for select spatial variables.
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Lester, Carole N. 1946. "Tinstar and Redcoat: A Comparative Study of History, Literature and Motion Pictures Through the Dramatization of Violence in the Settlement of the Western Frontier Regions of the United States and Canada." Thesis, University of North Texas, 1999. https://digital.library.unt.edu/ark:/67531/metadc278931/.
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The Western settlement era is only one part of United States national history, but for many Americans it remains the most significant cultural influence. Conversely, the settlement of Canada's western territory is generally treated as a significant phase of national development, but not the defining phase. Because both nations view the frontier experience differently, they also have distinct perceptions of the role violence played in the settlement process, distinctions reflected in the historical record, literature, and films of each country. This study will look at the historical evidence and works of the imagination for both the American and Canadian frontier experience, focusing on the years between 1870 and 1930, and will examine the part that violence played in the development of each national character. The discussion will also illustrate the difference between the historical reality and the mythic version portrayed in popular literature and films by demonstrating the effects of the depiction of violence on the perception of American and Canadian history.
Books on the topic "ARF Western Region"
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Girī, Gitu. Art and architecture: Remains in the Western Terai Region of Nepal. Delhi: Adroit Publishers, 2003.
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Stanton, John E. Painting the country: Contemporary Aboriginal art from the Kimberley region, Western Australia. Nedlands, W.A: University of Western Australia Press, 1989.
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Sanchez Velasco, Jeronimo. The Christianization of Western Baetica. NL Amsterdam: Amsterdam University Press, 2017. http://dx.doi.org/10.5117/9789089649324.
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The province of Baetica, in present-day Spain, was one of the most important areas in the Roman Empire in terms of politics, economics, and culture. And in the late medieval period, it was the centre of a rich and powerful state, the Umayyad Caliphate. But the historical sources on the intervening years are limited, and we lack an accurate understanding of the evolution of the region. In recent years, however, archaeological research has begun to fill the gaps, and this book-built on more than a decade of fieldwork-provides an unprecedented overview of urban and rural development in the period.
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Pereyaslovec, Vladimir, and Lev Erdakov. Dynamics of the number of wolves and large ungulates in some regions of Western Siberia. ru: INFRA-M Academic Publishing LLC., 2023. http://dx.doi.org/10.12737/1984075.
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In the monograph, based on the authors' long—term observations in the Yugansky Nature Reserve (KhMAO — Yugra), as well as open literature data, the dynamics of the number of large ungulates living together: forest reindeer, elk, and also the wolf predator associated with them are analyzed. The authors used traditional statistical and dynamic methods of analysis, as well as some ecological indices: compensation coefficient and habitat fidelity indices. Landscape features of the long—term course of abundance and its cycles in deer and wolf, synchronization of dynamics in the predator-prey system, separation of populations over time are described. Variants of the forecast of the abundance of these species in various habitats and large regions are shown.
It is intended for biologists, students of biological faculties of universities, employees of nature reserves, national parks and hunting.
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Mishenin, Sergey. Saving transportation resources: the experience of railway workers in Western Siberia 1965-1991. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1082937.
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The monograph is devoted to the generalization of the factors of railway transportation in Western Siberia and their influence on the formation of the experience of saving transportation resources in 1965-1991. The basic factors are considered such as the natural conditions and the production apparatus of the region, the development of a program-oriented approach to the development of the territory and the formation of the material base of railway transport in its space. These components are considered as historical challenges for the design of labor initiatives "from below". These initiatives are classified into three groups: speeding up the turnover of wagons, using the locomotive fleet, and saving fuel, energy, and other" variable " resources of the railway transportation process. The issues are considered taking into account the trends of fading opportunities for the Soviet model of system-wide development. It will be of interest to all those who are concerned about the history of Russia, the organization of its transport security system.
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Hodakov, Viktor. Natural environment and human activity. ru: INFRA-M Academic Publishing LLC., 2021. http://dx.doi.org/10.12737/1194879.
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The monograph describes the influence of the natural environment and its natural and climatic conditions on human life and socio-economic systems, which are considered as regions, territories of Eastern Europe. The natural and climatic factors (PCFs) characterizing the natural environment of Eastern Europe (Russia and Ukraine) and Western (England and France) are considered. Eastern Europe is in the zone of negative PCFs, close to critical.
The influence of the PCF on the vital activity of the state and man is systematically described: mentality, systemic thinking, human health, ensuring the safety of life, sustainability of development, agricultural production, housing and communal services, construction, industry, information security, parrying of the PCF, the influence of the PCF on the development of science and education. Climate change trends at the global and regional levels are also described.
Estimates of the impact of the PCF on the economy of the state and regions, recommendations on the adaptation of the economy to the PCF, the relationship of information security and information about the PCF, information technologies for assessing the sustainability of development and investment attractiveness of territories, conceptual foundations of state anti-crisis management of socio-economic systems are presented.
It is intended for researchers, teachers, postgraduates, students specializing in the field of life safety, computer ecological and economic monitoring. It can be used to educate society in the field of the natural environment and its natural and climatic conditions.
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Davis, Donald R., and Matthew J. Medeiros. A Revision of the Family Adelidae of the Western Hemisphere (Lepidoptera: Adeloidea). Washington, D.C.: Smithsonian Institution Press, 2023. http://dx.doi.org/10.5479/si.23817864.
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The systematics, morphology, and distributions are reviewed for the New World Adelidae. Four genera (Ceromitia, 51 species; Nemophora, 1 species; Adela, 19 species; Cauchas, 16 species) are currently recognized for North, Central, and South America. Keys to all New World genera and species are provided, as are diagnoses, illustrations, and distributional data. The following species are described as new: Adela atrata, Adela austrina, Adela powelli, Adela stenoptera, Adela striata, Cauchas alaskae, Cauchas clarkei, Cauchas elongata, Cauchas excavata, Cauchas lobata, Cauchas recurvata, Cauchas spinulosa, Cauchas suffusa, Cauchas trifascia, Cauchas vittata, Cauchas wielgusi, Ceromitia aphyoda, Ceromitia barilochensis, Ceromitia beckeri, Ceromitia bicornuta, Ceromitia braziliensis, Ceromitia brevipectinella, Ceromitia capitanea, Ceromitia cerastia, Ceromitia concava, Ceromitia convexa, Ceromitia costaricaensis, Ceromitia elongata, Ceromitia exserta, Ceromitia fasciata, Ceromitia flagellata, Ceromitia furcata, Ceromitia fuscata, Ceromitia inaequalis, Ceromitia karsholti, Ceromitia latapicula, Ceromitia laticlavia, Ceromitia latibasis, Ceromitia latijuxta, Ceromitia lobata, Ceromitia nielseni, Ceromitia nigrifasciata, Ceromitia ovata, Ceromitia pachyphalla, Ceromitia pallidofascia, Ceromitia paraguayensis, Ceromitia parvipectena, Ceromitia petila, Ceromitia sinuata, Ceromitia truncata, Ceromitia unicornuta, and Ceromitia unipectinella. The known world fauna of the monotrysian family Adelidae previously consisted of approximately five genera and 294 species (Nieukerken et al. 2011), occurring in all major geographical regions except Antarctica and New Zealand. Prior to this study, four of these genera, Adela (14 species), Cauchas (5 species), Ceromitia (15 species), and Nemophora (1 species), were known to occur in North and South America, totaling slightly less than 12% of the global diversity of the family. In this study, we are reporting 52 new species, most of which are (36 species) within the large pantropical genus Ceromitia. Additionally, we present gene trees for Adela, Cauchas, Ceromitia, and Nemophora and discuss their phylogenetic relationships.
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Boichenko, Sergii, Olufemi Olaulava Babatunde, Petro Topіl'nic'kii, and Vіktorіya Romanchuk. Physical and chemical properties of Nigerian oils and prospective technological scheme of their proccesing. Київ, Україна: Національний технічний університет України «Київський політехнічний інститут імені Ігоря Сікорського», 2021. http://dx.doi.org/10.20535/978-966-919-783-2.
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The current state of the oil refining industry in Nigeria, its problems and prospects are considered.The presented results of studies of the physicochemical properties of Nigerian oils, as well as gasoline,diesel fractions, jet fuel and fuel oil fractions obtained from them are compared with those obtained for oils from the eastern and western regions of Ukraine. Processing methods of fuel oils from Nigerian oils are presented with the aim of bitumen and base oils production. A promising technologicalscheme for the processing of Nigerian oils is proposed.
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Volodina, Larisa. Family harmony, or the values of family education in Russia. ru: INFRA-M Academic Publishing LLC., 2022. http://dx.doi.org/10.12737/1817281.
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The leading idea of the monograph is the idea of the unity of national priorities in the field of values of family education on the territory of the Russian Federation and the place of the region in its formation. Russian Russian peasant family values formation process in the second half of the XIX — early XX century is presented: in its historical and cultural context in the aspect of correlation with the stages of development of the Russian state; in its historical and pedagogical context in the aspect of correlation with the value priorities
of education in the Russian peasant family, which determined the essence and content of the family way.
The grounds for the representation of the North-Western region of Russia as significant in the formation of values of family education are revealed. The social conditionality of the process of development of traditional values of upbringing in the Russian peasant family is shown, provided by the coordinated actions of social institutions significant in a certain historical period: the state, pedagogical science, the socio-pedagogical movement, religion, the peasant community. The mechanisms
of their translation of the values of upbringing in the Russian peasant family are revealed.
It is addressed to a wide range of readers interested in the history of their region. It can be used in the implementation of basic educational programs of primary, basic, secondary general (vocational) education as the basis of educational work within the framework of educational, extracurricular activities of students; studying courses on the theory of education in the system of professional development of teaching staff; development of legislative and regulatory acts regulating issues of marriage and family relations.
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«Արեւմտեանի Ըմբոստութիւնը. Ի՞նչ Տեղի Ունեցաւ ՀՅԴ Արեւմտեան Ամերիկայի Կազմակերպութեան Մէջ». Los Angeles: Դաւիթ Թորոսեան, 2024.
Find full textBook chapters on the topic "ARF Western Region"
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Mantovani, Enzo, Marcello Viti, Daniele Babbucci, and Caterina Tamburelli. "Western Pacific Trench-Arc-Back Arc Systems." In Neogenic Evolution of the Mediterranean Region, 131–43. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-62150-5_5.
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Nayak, Sridhara, and Tetsuya Takemi. "Assessing the Impact of Climate Change on Temperature and Precipitation Over India." In Natural Disaster Science and Mitigation Engineering: DPRI reports, 121–42. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2904-4_4.
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AbstractThis study explores a comprehensive assessment of future climate change in terms of the climatologies, distribution patterns, annual cycles, and frequency distributions of temperature and precipitation over India by analyzing 190 mega-ensemble experimental results. The results indicate that the annual mean surface temperatures over Indian regions are typically 25 ℃ or higher in the present climate (1951–2010) and are expected to increase by 3–5 ℃ in the future climate (2051–2110). Some desert regions in the west and tropical humid climate types in the central and south regions of the country show possible temperature increases of 4–5 ℃, while the temperatures over the subtropical humid climates in the north and east regions of the country show increases of 3–4 ℃. The precipitation amounts over the arid and semiarid climate types in the western region and over some tropical rainforest climate zones in the southwest region show increases of 0.5 mm d−1 in the future climate, and the precipitation amounts over the temperate, rainy climate types in the northeast region show increases of more than 1 mm d−1. This study also discusses future changes in various climatic variables, including vertical velocity, air temperature, specific humidity, cloud cover, and relative humidity.
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Waage, Malin, Bjørn Christian Weinbach, and Øyvind Heimset Larsen. "Digital and AI Maturity of Enterprises in Sogn Og Fjordane, a Rural Region of Norway." In AI, Data, and Digitalization, 187–202. Cham: Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-53770-7_13.
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AbstractThis paper, which is based on results of a questionnaire sent out to employees, aims to evaluate the level of digital and artificial intelligence (AI) maturity among businesses in a rural Norwegian region (Sogn og Fjordane), identify challenges, and recommend potential opportunities within important regional sectors. Western Norway’s Sogn og Fjordane is significantly dependent on its small- to medium-sized enterprises (SMEs). Despite the fact that many businesses in the area are aware of the benefits of using data and AI, implementing these technologies into their daily operations seems to present a number of difficulties. Companies that are gathering large enough data-sources, may encounter challenges in effectively leveraging data-driven technology due to a lack of long-term strategies, knowledge, skills, and finance. Recommended tactics to adopt AI-techniques or implement specialized AI solutions and enhance internal skills can rely on training in specific abilities, knowledge exchange across disciplines or industries, and through research collaborations. According to the study results, the maturity is comparable to the larger area of western Norway; hence, the region’s rurality and SME dominance might not prevent AI adaptation.
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Nasution, Rizka Ameylina, Iskandar Muda, and Nisrul Irawati. "The Effect of Operational Efficiency, Marketing Effectiveness, and Leverage on the Financial Performance of PT Pelabuhan Indonesia (PERSERO) Regional I." In Proceedings of the 19th International Symposium on Management (INSYMA 2022), 206–12. Dordrecht: Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-008-4_28.
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Abstract This study aims to analyze the performance of PT Pelabuhan Indonesia (Persero) Regional I as part of the Indonesian logistics chain. The efficiency and effectiveness of PT Pelabuhan Indonesia (Persero) Regional I are expected to reduce logistics costs to realize economic development in the Western region of Indonesia. Performance measurement was done through its financial performance. This evaluation measured the effect of operational performance, marketing activities, and leverage on its financial performance to identify and need to improve its performance. The object of this research was the financial statements of PT Pelabuhan Indonesia (Persero) Regional I for the period 2015–2020. Based on the DuPont method, return on equity is influenced by net profit margin, total asset turnover, and debt to equity.
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Timmers, Renee, Blanka Bogunović, and Sanela Nikolić. "17. Conclusion: Progressing the State of the Art of Music Psychology." In Psychological Perspectives on Musical Experiences and Skills, 371–86. Cambridge, UK: Open Book Publishers, 2024. http://dx.doi.org/10.11647/obp.0389.17.
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Research from Western Europe tends to be better known and more frequently published than research from the Western Balkans. Various factors contribute to such imbalances of publication and recognition, including socio-economic, political, linguistic, and psychological, in the case of implicit biases. This book demonstrates the rich history of research in the psychology of music in the Western Balkans and aims to address power imbalances by explicitly promoting research from this region. In this concluding chapter, we argue for the opportunities offered by collaborative, interdisciplinary research to enable a more inclusive discipline of the psychology of music, with greater equality of contributions and embracing the diversity of knowledge and understanding. We reflect on the overlaps and differences between the research captured in this book, which originated in Western Europe and the Western Balkans. Whilst similarities and overlaps are most prevalent, subtle differences are also apparent in specific specialisms in knowledge development. Furthermore, contexts such as variations in systems and practices of music education and variations in musical preferences demonstrate the need for research to be situated rather than being assumed to be context-independent. This offers a tension for researchers to add to generalisable knowledge or develop context-dependent insights. Such tensions need to be first of all acknowledged in mainstream music psychology, highlighting the limitations of published research, and opening a larger platform for research from a diversity of regions, and cultural and research practices.
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Young, Julie K., Andrew R. Butler, Joseph D. Holbrook, Hila Shamon, and Robert C. Lonsinger. "Mesocarnivores of Western Rangelands." In Rangeland Wildlife Ecology and Conservation, 549–90. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34037-6_16.
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AbstractThere are 22 species of mesocarnivores (carnivores weighing < 15 kg) belonging to five families that live in rangelands of the western United States. Mesocarnivores are understudied relative to large carnivores but can have significant impacts on ecosystems and human dimensions. In this chapter, we review the current state of knowledge about the biology, ecology, and human interactions of the mesocarnivores that occupy the rangelands of the central and western United States. In these two regions, mesocarnivores may serve as the apex predator in areas where large carnivores no longer occur, and can have profound impacts on endemic prey, disease ecology, and livestock production. Some mesocarnivore species are valued because they are harvested for food and fur, while others are considered nuisance species because they can have negative impacts on ranching. Many mesocarnivores have flexible life history strategies that make them well-suited for future population growth or range expansion as western landscapes change due to rapid human population growth, landscape development, and alterations to ecosystems from climate change; however other mesocarnivores continue to decline. More research on this important guild is needed to understand their role in western working landscapes.
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Nguyen, Trang. "Translation of Russian Literature in North and South Vietnam during 1955-75." In Translating Russian Literature in the Global Context, 555–70. Cambridge, UK: Open Book Publishers, 2024. http://dx.doi.org/10.11647/obp.0340.35.
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1955-1975, the decades of the Vietnam War, was a unique period in Vietnamese history: the nation was divided into South and North, under two different political regimes. North Vietnam built Socialism while the Republic of Vietnam was formed in the South with American support. Thus the translation of Russian literature in each region was dominated by differing political discourse and cultural contexts. In North Vietnam, translators trained in the Soviet Union helped to connect Russian and Vietnamese literature. In the South, intellectuals influenced by Western ideology introduced Russian literature. I argue that North Vietnam and South Vietnam rewrote Russian literary history in ways that are closely tied to the two political discourses of the two regions, forming a translation polysystem.
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Zhang, Shifeng, Yan-Fang Sang, Tao Qiu, Yanxin Zhu, Payam Sajadi, and Faith Ka Shun Chan. "Water Resource Availability and Use in Mainland Southeast Asia." In Water Resources in the Lancang-Mekong River Basin: Impact of Climate Change and Human Interventions, 203–28. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-0759-1_5.
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AbstractThis chapter assesses water resource availability and use in the five countries in Mainland Southeast Asia (MSEA): Myanmar, Thailand, Laos, Cambodia, Vietnam. The total water resources in the region are estimated using a wide range of hydrometeorological data. Results show that the average annual runoff is about 1941.1 billion m3 in the region. Regarding spatial differences, rainfall and runoff in the southern coastal areas are generally higher than the ones in the central and northern inland areas, and the western coastal areas have more rainfall than the eastern coastal areas. Moreover, results indicate that the overall utilization rate of water resources in the region reached 9%, mainly used for hydropower development, agricultural irrigation, fishery and aquaculture, shipping and other aspects. Agriculture was the primary water user (about 92.2%) in the study area compared to industrial (about 3.6%) and domestic (about 4.2%) water users. The region is divided into different water resource zones, including 7 first-level water resources zones, 17 s-level water resources zones, and 138 third-level water resources zones. The division is done by considering the hydrology conditions, natural landforms, administrative divisions, and river systems in the study area. Particularly, results show that the seven first-level water resources regions are all transboundary basins, implying that the water resources management in the region needs the solid cooperation and overall planning of all countries. Results show that the total water demand in MSEA will reach 200, 208, and 225 billion m3 in 2025, 2030, and 2040, respectively. The prediction is obtained using the historical social and economic data. Social-economic developments are predicted to estimate the future water consumption. will assure a balance between the supply and demand of water resources in the study area, with asurplus of water resources supply ability.
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Malisch, Rainer, Björn Hardebusch, Ralf Lippold, F. X. Rolaf van Leeuwen, Gerald Moy, Angelika Tritscher, Kateřina Šebková, Jana Klánová, and Jiří Kalina. "Time Trends in Human Milk Derived from WHO- and UNEP-Coordinated Exposure Studies, Chapter 2: DDT, Beta-HCH and HCB." In Persistent Organic Pollutants in Human Milk, 485–542. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34087-1_13.
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AbstractTemporal trends of DDT (“DDT complex” as sum of p,p′-DDT, o,p′-DDT, p,p′-DDD and p,p′-DDE), beta-hexachlorocyclohexane (beta-HCH) and hexachlorobenzene (HCB) were assessed using pooled human milk samples from 44 countries from all United Nations Regional Groups based on their repeated participation in WHO/UNEP-coordinated exposure studies performed between 2000 and 2019. In contrast to a general estimation of time trends based on results from all countries, this is a more precise approach, because levels among countries are often highly variable. The primary objective of these temporal studies is to provide monitoring data for the effectiveness evaluation of the Stockholm Convention on Persistent Organic Pollutants (POPs).For DDT, an overall decrease over 10 years between 50% and 80% was achieved in Africa, the Asia-Pacific region and in Latin America and the Caribbean region, and at a global level. Slightly lower decreases were observed in European countries because DDT was banned much earlier in these countries and only residual levels were depleting. Western European countries had the lowest median and the lowest maximum DDT concentrations. This is an indication that the decrease might be faster in regions with higher concentrations, compared to a slower decrease in less contaminated regions. The frequency distribution of the country-specific decrease (decrease rate constants) confirms these findings.For beta-HCH, an overall decrease over 10 years between 50% and 98% was achieved in all UN regions and at a global level. Country-specific decreases vary in the low background range (below 5 μg beta-HCH/kg lipid). Regarding HCB, all countries from Africa and many countries from the Pacific Islands and Latin America and the Caribbean were in the range of a low background contamination below 5 μg/kg lipid resulting in a wide range of reduction rates. In contrast, in countries with HCB concentrations above 30 μg/kg lipid in previous rounds, overall decreases over 10 years between 50% and 85% were observed.Therefore, the reduction rates should be seen also in context with the concentration range: A differentiation of levels above or in the range of the background contamination seems to be advised. If high levels are found, sources might be detected which could be eliminated. However, at low background levels, other factors, e.g. contamination of feed and food by air via long-range transport and subsequent bioaccumulation, cannot be influenced locally.
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Brumm, Adam, Adhi Agus Oktaviana, and Maxime Aubert. "Some Implications of Pleistocene Figurative Rock Art in Indonesia and Australia." In Deep-Time Images in the Age of Globalization, 31–44. Cham: Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-54638-9_3.
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AbstractUntil recent years, most western scholars had overlooked the existence of rock art in Indonesia or viewed it as being of limited antiquity and of largely regional-interest only. In 2014, however, an Indonesian-Australian team announced the results of a program of Uranium-series (U-series) dating of rock art in Maros-Pangkep, Sulawesi, including a surprisingly early antiquity of at least 39.9 ka for a hand stencil and 35.4 ka for a figurative animal painting. U-series dating more recently has yielded minimum ages for figurative animal painting of 40 ka in Kalimantan and 45.5 ka in Maros-Pangkep, with the latter presently constituting the world’s oldest dated example of representational art. Indonesia’s previously little-known rock art has been propelled to the global stage. Here, we examine how scholars are grappling with the implications of ‘ice age art’ in Indonesia and its integration, for the first time, into models of early human artistic culture in other parts of the world. In particular, we discuss the seemingly close stylistic parallels between Late Pleistocene figurative animal art in Indonesia and early representational depictions of animals in the Arnhem Land and Kimberley regions of northern Australia. We consider scenarios that could explain these similarities, including the idea that a single figurative rock art style spread into Australia from Wallacea during the early movements of our species in the region.
Conference papers on the topic "ARF Western Region"
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Griston-Castrup, Suzanne. "Orifice Meters for Steam Injector Monitoring - How Accurate Are They?" In SPE Western Regional Meeting. Society of Petroleum Engineers, 2001. http://dx.doi.org/10.2118/68830-ms.
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Fakher, Sherif, Youssef Elgahawy, Hesham Abdelaal, and Abdulmohsin Imqam. "What are the Dominant Flow Regimes During Carbon Dioxide Propagation in Shale Reservoirs’ Matrix, Natural Fractures and Hydraulic Fractures?" In SPE Western Regional Meeting. SPE, 2021. http://dx.doi.org/10.2118/200824-ms.
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Abstract Carbon dioxide (CO2) injection in low permeability shale reservoirs has recently gained much attention due to the claims that it has a large recovery factor and can also be used in CO2 storage operations. This research investigates the different flow regimes that the CO2 will exhibit during its propagation through the fractures, micropores, and the nanopores in unconventional shale reservoirs to accurately evaluate the mechanism by which CO2 recovers oil from these reservoirs. One of the most widely used tools to distinguish between different flow regimes is the Knudsen Number. Initially, a mathematical analysis of the different flow regimes that can be observed in pore sizes ranging between 0.2 nanometer and more than 2 micrometers was undergone at different pressure and temperature conditions to distinguish between the different flow regimes that the CO2 will exhibit in the different pore sizes. Based on the results, several flow regime maps were conducted for different pore sizes. The pore sizes were grouped together in separate maps based on the flow regimes exhibited at different thermodynamic conditions. Based on the results, it was found that Knudsen diffusion dominated the flow regime in nanopores ranging between 0.2 nanometers, up to 1 nanometer. Pore sizes between 2 and 10 nanometers were dominated by both a transition flow, and slip flow. At 25 nanometer, and up to 100 nanometers, three flow regimes can be observed, including gas slippage flow, transition flow, and viscous flow. When the pore size reached 150 nanometers, Knudsen diffusion and transition flow disappeared, and the slippage and viscous flow regimes were dominant. At pore sizes above one micrometer, the flow was viscous for all thermodynamic conditions. This indicated that in the larger pore sizes the flow will be mainly viscous flow, which is usually modeled using Darcy's law, while in the extremely small pore sizes the dominating flow regime is Knudsen diffusion, which can be modeled using Knudsen's Diffusion law or in cases where surface diffusion is dominant, Fick's law of diffusion can be applied. The mechanism by which the CO2 improves recovery in unconventional shale reservoirs is not fully understood to this date, which is the main reason why this process has proven successful in some shale plays, and failed in others. This research studies the flow behavior of the CO2 in the different features that could be present in the shale reservoir to illustrate the mechanism by which oil recovery can be increased.
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Raszková, Soňa. "Dynamika regionálních inovačních systémů ve střední a východní Evropě." In XXIII. mezinárodní kolokvium o regionálních vědách / 23rd International Colloquium on Regional Sciences. Brno: Masaryk University Press, 2020. http://dx.doi.org/10.5817/cz.muni.p210-9610-2020-16.
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This article examines regional innovation systems in Central and Eastern Europe, with particular attention to the regions with the highest innovation success. The articles also include a discussion of the presence of elements and dynamic of regional innovation systems in these countries. The Innovation performance of regions in Central and Eastern Europe is analyzed and selected progressive regions are further examined in terms of partial innovation and socio-economic indicators. Data on regions were obtained from the Regional Innovation Scoreboard 201at the NUTS II level. Detailed analysis is possible through a case study of the Malopolskie region. The analysis focuses primarily on the causes of the region's innovative progress, including the setting of favorable conditions for SMEs and the associated high cluster activity, the commercialization of research and the dissemination of external knowledge. On the basis of the overall analysis, RIS in Central and Eastern Europe are far below RIS in Western and Northern Europe and their results are very low compared to these regions.
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Tang, Xing. "Discussion on Western Region Music in Northern Zhou Dynasty." In 2017 International Conference on Art Studies: Science, Experience, Education (ICASSEE 2017). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/icassee-17.2018.26.
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Gashi, Bejtush, and Arian Kadriu. "SECURITY CHALLENGES OF WESTERN BALKANS COUNTRIES, A NECESSITY FOR A REGIONAL COOPERATION." In SECURITY HORIZONS. Faculty of Security- Skopje, 2021. http://dx.doi.org/10.20544/icp.2.4.21.p04.
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After the end of the Cold War in the 1990s, the Western Balkan was one of the regions that experienced the most difficult transition because this process was accompanied by bilateral and multilateral conflicts, with local and regional wars, as well as with political and ethnic clashes. As a consequence, it was also politically fragmented on its map. The international community intervened in the Balkans with various civilian and military missions, respectively during the conflicts in Bosnia and Herzegovina, Kosovo and North Macedonia. These international interventions have yielded concrete results in the process of overall democratic reforms of the region countries, with particular emphasis on the security field, as well as the aspect of integration reforms in both NATO and the EU. The fragmentation of Western Balkans came as a result of many historical, political, economic, military, geopolitical and strategic reasons. This process has also had consequences in the integration process of this region. But it is currently fully oriented towards European and Euro-Atlantic structures. Most Balkan countries are now members of NATO, while Kosovo has the primary and long-term strategic objective of its policy of integration into EuroAtlantic Security structures. The outbreak of the COVID-19 pandemic has tested the Euro-Atlantic integration process and could be a turning point in relations between the EU and the enlargement countries in the Western Balkans. Keywords: Western Balkans, Covid-19, Regional security, North Macedonia, NATO, Kosovo
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Hasanli, Aygul, and Mahir Mirzeyev. "The Impact of Ecological Factors on Tourism in Azerbaijan." In 4th International Conference of Contemporary Affairs in Architecture and Urbanism – Full book proceedings of ICCAUA2020, 20-21 May 2021. Alanya Hamdullah Emin Paşa University, 2021. http://dx.doi.org/10.38027/iccaua2021218n8.
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We discuss the uniqueness of natural and geographical conditions for tourism in the Sheki-Zagatala region of Azerbaijan In this article. The role and place of tourism in the development of the national economy are considered, the tourist potential of the region is characterized, the ways of tourism development are determined. The need to develop a new strategy for the development of urban planning organization and improving the design of recreation and tourism complexes is noted. It is analyzed the opening of a new corridor linking Nakhichevan with the western regions of Azerbaijan and, accordingly, Turkey with Central Asia, which will significantly affect regional development, including opening up wide opportunities for the development of tourism in the region.
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Earhart, James W., and Stuart Neblett. "The Green Energy Conundrums." In SPE Western Regional Meeting. SPE, 2024. http://dx.doi.org/10.2118/218854-ms.
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There is a big push in the western world to "de-carbonize." Such erudite publications as The Economist and academics as Bent Flvbjerg (Oxford, author of How Big things Get Done.) and Richard Muller (UC, Berkeley, physicist and Author of Physics for Future Presidents) are convinced that such is necessary. Solar, wind, and possibly nuclear electricity appear to be the most feasible green/renewable solutions to the problem. The serious problems with the proposed solutions are the conundrums. Renewable power is inherently sporadic: the wind does not blow consistently, solar power is unavailable at night, and hydropower electricity is seasonal. Also, renewable power is not always connected to the market requiring it at the time of generation. Therefore, there must be some means of storing electricity for when these sources are not available or are fully committed. Pump storage, or variations thereon, are a hot topic among renewable energy advocates-as demonstrated by a report in the April 25, 2022 edition of the New Yorker magazine (Matthew Hutson, 2022).
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Lin, Bisen, Frederick Bennett, David Coe, and Phillip Pattillo. "Effects of Axial Tension and Torque on Fatigue Performance of Threaded OCTG Connection." In SPE Western Regional Meeting. SPE, 2023. http://dx.doi.org/10.2118/213035-ms.
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Abstract Casing strings, consisting of hundreds of ∼40 feet long pipe joints connected by threaded connections, usually experience axial tension and/or torsion when rotationally running through the build sections during casing installation of horizontal wells. It is important to understand the influence of axial tension and torsion on the connection's fatigue performance. In this paper, fatigue performance of threaded OCTG connections subjected to cyclic dogleg bending deformation is evaluated using fatigue crack growth methodology and full-scale connection fatigue testing. Material constants in the fatigue crack growth model are first calibrated using a single set of full-scale connection fatigue test results on one connection. Several connection products (different combinations of connection design and size) are then analyzed using the calibrated fatigue model and compared to the full-scale fatigue-to-failure test results. Excellent agreement, in terms of both fatigue life and fatigue failure location, between the analysis and actual test results are observed. Effects of connection torque and axial tension on fatigue performance are also investigated using the calibrated fatigue crack growth model for a broad range of connection products. For each connection analyzed, four different torques with values in-between the connection's minimum required makeup torque and yield torque are considered. Four different axial tension levels, equivalent to 0, 10, 20, and 30 ksi axial tensile stress of the corresponding pipe, are also analyzed. Overall, different connection torques or axial tensions do not impact the connection's fatigue performance significantly except for the small size (e.g. 4.500"pipe OD) T&C connections.
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Paskvan, Frank, Haley Paine, Christine Resler, Brent Sheets, Thomas McGuire, Kevin Connors, and Esther Tempel. "Alaska CCUS Workgroup and a Roadmap to Commercial Deployment." In SPE Western Regional Meeting. SPE, 2023. http://dx.doi.org/10.2118/213051-ms.
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Abstract A group of Alaskans formed a Workgroup in July 2022 to accelerate commercial carbon capture, use, and storage (CCUS) projects in the State of Alaska (State). The Workgroup’s mission is to attract new investments and create options that enable continued operation of carbon intensive activities vital to the State’s economy including power generation, refineries, and oil and gas production. To meet the dual challenge of increasing global energy demand and a growing population, there is a need to provide affordable and reliable energy while addressing the risks of climate change. Policies are being created and refined to incentivize carbon dioxide removal from the atmosphere including capture at the point of generation and direct air capture. Since 2008, US Federal tax credits have been established, increased, extended, and expanded for CCUS projects. Energy policy in the US and globally is evolving, moving from exclusive focus on renewable energy towards supporting low-emission energy systems, including those employing CCUS [COP 26]. This shift recognizes utility-scale renewable energy generation generally depends on fossil fuel for back-up power. The intermittent nature of renewable power generation gives rise to energy generation gaps. Coal, natural gas, and oil generation fill these gaps to provide stability to an energy system, and CCUS is increasingly viewed as a critical part of a complete clean energy portfolio. Costs to establish clean energy security would be more than twice as expensive without CCUS [IPCC]. Interest in CCUS is growing rapidly. As of 2020, 21 large-scale CCUS facilities operate globally [IEA CCUS], with 80% of capacity based in the USA. Operations began as far back as 1972 for enhanced oil recovery and more recently for geologic sequestration. As of 2022, over 190 CCUS facilities are in the project pipeline globally. Assuming one million tonnes carbon dioxide captured per year per project, over 2,500 facilities are needed by 2040 to reach the objective of 2.52 gigatonnes captured per year [IEA 2020]. This paper addresses three important topics:The importance, value, and cost of CCUS. Costs increase rapidly as the carbon dioxide (CO2) concentration decreases within the capture inlet gas stream. Herein, costs are compared with the value of capture especially 45Q tax credits. Other revenue and value drivers are also discussed. Costs typical of the contiguous 48 states of the US were used in this screening.The Alaska CCUS Workgroup’s mission, leadership, and participating organizations are discussed. Results, future plans, and approaches to ensure participant value are shared for four focus areas:Develop a State legal and regulatory framework,Track and respond to government funding opportunities,Perform public education and outreach, andDevelop a roadmap to accelerate commercial CCUS deployment in Alaska.The North Slope, Interior, and Cook Inlet regions are reviewed for CO2 storage potential, stationary emission sources, seismic hazards, and expected capture costs. Potential Alaska CCUS projects are discussed, and additional work is proposed to advance commercial deployment. Key observations, findings, and recommendations are provided.
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Davudov, Davud, Ashwin Venkatraman, Ademide O. Mabadeje, Anton Malkov, Gurpreet Singh, Birol Dindoruk, and Talal Al-Aulaqi. "Machine Learning Assisted Well Placement Optimization." In SPE Western Regional Meeting. SPE, 2023. http://dx.doi.org/10.2118/213038-ms.
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Abstract Well placement optimization is a complicated problem which is usually solved by direct combination of reservoir simulators with optimization algorithm. However, depending on complexity of the reservoir model studied, thousands of simulations is usually needed for accurate and reliable results. In this research, we present a novel approach – machine learning (ML) assisted proxy model that combines reservoir simulations and reduced physics model to reduce computational cost. In the proposed model framework, first several (depending on the complexity of the problem) uniformly distributed random coordinates are selected. These chosen coordinates are considered as data points for ML model. For the chosen coordinates (training set) reservoir simulations are executed and NPV/recovery values are calculated (target variable). Spatial locations as well as petrophysical properties of the same coordinates extracted from simulation model are also used as an input to the ML model. ML model is further improved by combining with Fast Marching Model (FMM) which is a robust reduced physics model. The inclusion of FMM helps identify drainage volume for producers and hence enhance model training. Finally, the trained ML model is coupled with stochastic optimization algorithms to determine infill well location with highest NPV/recovery. Using an example field data, we present two specific cases of using proposed model: a) for greenfield with a single new well, b) for greenfield with multiple new wells. Results indicate that developed ML model can predict NPV with around 96% accuracy (testing score). This gives great confidence in predictions from the trained hybrid model that can be used as a proxy model for reservoir simulations. Coupling the trained hybrid model with Particle Swarm Optimization (PSO), the location of the new producers with maximum NPV are determined. The results are further confirmed with an exhaustive search from all potential locations. A novel approach is presented to show how traditional physics-based approaches can be combined with machine learning algorithms to optimize well placement. Such approaches can be integrated in current greenfield and brownfield reservoir engineering workflow to drastically reduce decision making times.
Reports on the topic "ARF Western Region"
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Bailey, A., E. Bastrakov, C. Cairns, R. Cayley, R. Duncan, D. Huston, C. Lewis, et al. Regional geology and mineral systems of the Stavely Arc, western Victoria. Edited by A. Schofield. Geoscience Australia, 2018. http://dx.doi.org/10.11636/record.2018.002.
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Kerr, D. E. Reconnaissance surficial geology, Keller Lake, Northwest Territories, NTS 95-P. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/328293.
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The Keller Lake map area contains three glacial terrains. First, ridged and fluted till cover the northeast region above 300 m elevation. Second, streamlined till, including mega-scale glacial lineations, and till plain with an extensive organic cover, dominate a low-lying basin in the north-central and central regions. Third, till blanket, ridged till, and undifferentiated till cover the highlands at 375 to 575 m elevation in the southeast, south, and west. A dominant regional northwestward ice flow first crossed the map area. Subsequently, an ice stream developed late during deglaciation, creating northwesterly oriented mega-scale glacial lineations in north-central regions. Late shifts in ice flow in the northeastern highlands also resulted in west-northwestward flutings superimposed on older northwestward-trending drumlinoids. Retreating remnant ice deposited minor moraines and other ridges over fluted till. In the extreme southeast, glacial Lake McConnell inundated lowlands to 275 m elevation, following retreat of southwesterly flowing ice. Meltwater corridors and glaciofluvial sediments are more prevalent in western regions and record variable flow directions.
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Chilvers, Myriam, Nora Sánchez Gassen, Anna Lundgren, and Carlos Tapia. Geographies of discontent in the Nordic Region? A Conceptual overview. Nordregio, May 2024. http://dx.doi.org/10.6027/wp2024:1.1403-2511.
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This paper summarises that debate and serves as a conceptual overview of the topic in order to provide a better understanding of what factors, or combination of factors, are driving discontent and geographies of discontent in Western liberal democracies. After discussing the phenomena at large, this paper then zooms in on the Nordic Region specifically and describes significant factors potentially driving geographies of discontent in the region.
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Vuksanovic, Vuk. The Spillover Effect: The Gaza Conflict and Potential Ramifications to the Western Balkans. Belgrade Centre for Security Policy (BCSP), January 2024. http://dx.doi.org/10.55042/wfpm5307.
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This report outlines potential security and geopolitical risks for the Western Balkans stemming from the war in Gaza. While none of these security challenges are inevitable, they are possible. Depending on whether the conflict in Gaza continues in its current form or whether it escalates in intensity and number of the belligerents, there are at least three potential ramifications for the Western Balkans. The first concerns the potential radicalisation in the local Muslim communities involving anti-Semitism and acts of violence that could disrupt harmony between local religious communities. The second concerns the risk that if the conflict expands to engulf Iran and Hezbollah and potentially other regional actors, there is a risk that this security rivalry between Middle Eastern players like Israel and Iran will spread to the Western Balkans. Thirdly, depending on the geographical scope and duration of the conflict, there is a potentially high risk of a new refugee crisis impacting the region.
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Cvijić, Srdjan, Maja Bjeloš, Luka Šterić, Marko Drajić, and Ivana Ranković. Balkan Csárdás: Hungarian Foreign Policy Dance. Belgrade Centre for Security Policy, May 2023. http://dx.doi.org/10.55042/gzwk7404.
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As part of the overall focus on the democratic backsliding in Hungary since Viktor Orbán’s Fidesz reassumed power in 2010, numerous international observers have expressed concern regarding increasing Hungarian influence in the Western Balkans. Specifically, many fear that through intensified meddling in Western Balkan affairs, Orbán’s Hungary would spread its illiberal influence throughout the region and subsequently undermine broader EU policy. In 2019, the process leading to the appointment of Olivér Várhelyi (a Hungarian diplomat close to Orbán) to the position of the European Commissioner for Neighbourhood and Enlargement garnered a salvo of criticism. While this incident briefly attracted the European media floodlights to the topic, the issue of Hungarian influence in the region of the Western Balkans quickly faded into a relative obscurity. Apart from few exceptions and a handful of journalistic accounts (which will be quoted extensively throughout the study), there are little to no attempts to analyse and explain Hungarian foreign and trade policy in the Western Balkans. What interests and strategic considerations drive Hungarian foreign and trade policy in the region? What are Hungarian foreign policy priorities and what instruments does Hungarian foreign policy have at its disposal in the region? Is Orbán’s Western Balkan policy marked by a total discontinuity with regards to previous Hungarian foreign policy towards the region? Who formulates foreign policy priorities in Hungary and what is the interplay between formal and informal actors? What economic interests shape Hungarian foreign policy in the region? How much has Hungarian foreign policy in the region changed as a result of war in Ukraine? To answer these questions, this paper is divided into four main sections. The first focuses on Hungary’s foreign policy strategy in the region. The second, as a special case study, investigates the effects of Orbán’s minority politics in Serbia’s Autonomous Province of Vojvodina (Vajdaság in Hungarian). The third, researching Hungarian media empire in the region, and finally the fourth focusing on the economic drivers of Hungary’s approach in the region.
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Rita, WY Ng, Priyanga Dharmaratne, and Ip Margaret. An update of the contemporary donor screening tests used in fecal microbiota transplantation for its future developments: A systematic review. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, December 2021. http://dx.doi.org/10.37766/inplasy2021.12.0063.
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Review question / Objective: Western pacific and South-east Asian region have its own lifestyle and dietary habits, for an example, the prevalence of parasites and the MDR pathogens are different compared to the European region where most consensus documents have been disseminated. Hence, current investigation is being carried out in view of appraising contemporary methods that have been used internationally and to propose rigorous donor screening methods appropriate for the regional requirement. Information sources: EMBASE and MEDLINE through PubMed and WEB of SCIENCE. Additionally, we have reviewed all international consensus documents and local guidelines published in English.
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Jabado, Rima, Peter Kyne, Emiliano Garcia-Rodriguez, Ryan Charles, Asia Armstrong, Theophile Mouton, Adriana Gonzalez-Pestana, Amanda Battle-Morera, and Christoph Rohner. WESTERN INDIAN OCEAN: A REGIONAL COMPENDIUM OF IMPORTANT SHARK AND RAY AREAS. IUCN Species Survival Commission Shark Specialist Group, January 2024. http://dx.doi.org/10.59216/ssg.isra.2023.r7.
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The third Important Shark and Ray Areas (ISRA) regional expert workshop was held in hybrid mode (in person and online) in Durban, South Africa from 11–15 September 2023. The goal was to identify and delineate three-dimensional and discrete portions of habitat that are critical to the survival of sharks, rays, and chimaeras (hereafter ‘sharks’), and that have the potential to be managed for conservation. The region covered was the Western Indian Ocean. This scientific collaboration amongst regional and global experts resulted in the identification of 125 Important Shark and Ray Areas, 1 candidate ISRA, and 45 Areas of Interest. Identified ISRAs range in size from small areas of 0.03 km2 at depths of 0–40 m (Maroshi Thila in the Maldives) to very large areas of 1,454,950 km2 (Western Agulhas Front which is completely in areas beyond national jurisdiction [ABNJ]) from surface waters to a depth of 180 m.
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Arifi, Besa. Education in Preventing & Countering Violent Extremism: Considerations for the Western Balkans. RESOLVE Network, September 2022. http://dx.doi.org/10.37805/pn2022.1.wb.
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Violent extremism in the Western Balkans takes many forms, from Western Balkans foreign fighters recruited to participate in conflicts abroad, including in the Middle East and Ukraine; to ethno-nationalist organizations that spread inter-ethnic hatred, some emanating from and glorifying legacies of conflict spanning back to the breakup of the former Yugoslavia and regional conflicts in the 1990s; to chauvinism and anti-EU and anti-NATO ideas that emerge to become even more serious and with greater consequences for the region and socio-political cohesion and dynamics. As violent extremism continues to evolve and adapt in the Western Balkan countries, efforts to address it must also adjust to new threats from both internal and external sources. Recent research on violent extremism in the Western Balkans, and North Macedonia specifically, suggests that education may be an important tool in addressing violent extremism in the region. Some have suggested educational initiatives may assist in addressing online and offline disinformation and extremist narratives. Furthermore, addressing ongoing issues within ethnically divided educational systems may play an important role in working to address some of the ethnic-based divisions that can contribute to ”othering” dynamics. Others have further suggested that education and other support services can play a role in aiding the transition of those imprisoned on charges related to violent extremism and returning families back into society. As countries throughout the Western Balkans continue to update and revise their national action plans and policies to address violent extremism, greater consideration of the role of education and how it might be integrated into these policies is needed. This publication, based on findings from a large-scale literature review mapping the state of research on education in P/CVE in the Western Balkans and beyond,offers a series of considerations for policymakers and practitioners looking to incorporate education in future efforts to address drivers, both real and potential, of violent extremism in Western Balkan states. While findings from this paper are contextualized within the broader experiences of the Western Balkans, specific examples based on experiences in individual countries, North Macedonia most notably, are detailed to provide an in-depth example of considerations for policymakers interested in further incorporating education into P/CVE plans moving forward.
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Boniface, Gideon, and C. G. Magomba. Impact of COVID-19 on Food Systems and Rural Livelihoods in Tanzania – Round 2 Report. Institute of Development Studies (IDS), December 2020. http://dx.doi.org/10.19088/apra.2020.020.
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On 8 June 2020, the Government of Tanzania officially declared the country to be free of COVID-19 and all restrictions have since been lifted. As of 3 December 2020, Tanzania had only 509 confirmed cases of the virus and 21 deaths. Nevertheless, neighbouring countries are still facing the threat of the pandemic, all of which are key trading partners. Their continuing COVID-19 control measures have disrupted regional and domestic agricultural markets and affected local livelihoods and food systems. This study analysed the resulting impacts in those systems in several rice-producing communities in Morogoro Region, south-western Tanzania.
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Hodey, Louis S., and Fred M. Dzanku. Agricultural Commercialisation in South-Western Ghana. Institute of Development Studies (IDS), October 2021. http://dx.doi.org/10.19088/apra.2021.032.
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The Agricultural Policy Research in Africa study in Ghana consists of three work streams. This report contains results of the analyses of Work Stream 1 (WS1) baseline and endline survey datasets for Ghana. Oil palm commercialisation arrangements and outcomes are the focus of WS1 in Ghana. Case studies have been carried out in two districts – Ahanta West and Mpohor – in Western Region. This report highlights the changes between 2017 and 2019 for five APRA indicators, including agricultural commercialisation (input and output), employment, poverty (income, subjective poverty and household asset ownership), food security and women empowerment.