61 research outputs found
ALOKASI TENAGA KERJA RUMAHTANGGA TANI PENERIMA BANTUAN MODAL TERNAK SAPI DI KECAMATAN KAWANGKOAN BARAT
FACTORS AFFECTING MAN LABOR ALLOCATION ON HOUSEHOLDS RECEIVING CATTLE CAPITAL INVESTMENT AID IN WEST KAWANGKOAN DISTRICT OF MINAHASA REGENCY. Study was conducted to analyze factors affecting man labor allocation on households receiving cattle capital investment aid in west kawangkoan district of minahasa regency. Study was done by survey method involving 30 samples of household farmers during September to November 2018. The specific model was applied with the household economic model in form of simultaneous regression system. Involving man labor at household was significantly affected by labor cost, amount of involving woman labor at household, amount of capital aid allocation for cattle farm, amount of cattle sold, and amount of household income. Household farmers positively gave response by doing allocation of man labor for cattle farm at household in the increasing occurrence of labor cost, capital aid and household income.Keywords : Household, capital aid, labo
Closed Form Formulas for Distributed Circuit Model of Discontinuities in HTS Microstrip Transmission Lines
AbstractA distributed circuit model for different kinds of discontinuities in high temperature superconducting (HTS) microstrip transmission lines (TLs), is proposed. In each case, closed form formula for lumped element model is presented based on the configuration of the discontinuity and the characterizations of HTS microstrip TLs. These discontinuities consist of steps in width, open ends, gaps and 90-degree bends. In the case of normal conductor microstrip TLs there are a lot of numerical and analytical equations that can accurately model them, however those formulas are not efficient for HTS TLs. Thus modified relations are extracted utilizing the superconducting characterizations to obtain much more accurate formulas. Additionally temperature dependence of HTS TLs is considered in the relations. Moreover regarding the kinetic inductance in HTS TLs a closed form formula is proposed for characteristic impedance of HTS TLs. Furthermore correction factors based on fringe fields is used to optimize all formulas. Using these formulations can lead to modeling and analysis of some superconducting microwave devices such as resonators, microwave filters, couplers, etc. In contrast to EM analysis, using the distributed circuit model is much easier for analysis of HTS microwave devices. The accuracy of the proposed model is confirmed in comparison with some electromagnetic full-wave simulations. This full analytical approach shows great accuracy in this test case as well
Methodological Issues in Evaluating Workplace Interventions to Reduce Work-related Musculoskeletal Disorders Through Mechanical Exposure Reduction
Researchers of work-related musculoskeletal disorders are increasingly asked about the evidentiary base for mechanical exposure reductions. Mixed messages can arise from the different disciplinary cultures of evidence, and these mixed messages make different sets of findings incommensurate. Interventions also operate at different levels within workplaces and result in different intensities of mechanical exposure reduction. Heterogeneity in reporting intervention processes and in measuring relevant outcomes makes the synthesis of research reports difficult. As a means of synthesizing the current understanding of measures, this paper describes a set of intervention and observation nodes for which relevant workplace indicators prior to, during, and after mechanical exposure reduction can provide useful information. On the basis of this path of impacts from exposure reduction, an approach to the evaluation of multilevel ergonomic interventions is described that can assist fellow researchers in producing evidence relevant to the challenges faced by workplace parties and policy makers
Molecular epidemiology of clade 1 influenza A viruses (H5N1), southern Indochina Peninsula, 2004-2007
To determine the origin of influenza A virus (H5N1) epizootics in Cambodia, we used maximum-likelihood and Bayesian methods to analyze the genetic sequences of subtype H5N1 strains from Cambodia and neighboring areas. Poultry movements, rather than repeated reintroduction of subtype H5N1 viruses by wild birds, appear to explain virus circulation and perpetuation
A short in-frame deletion in NTRK1 tyrosine kinase domain caused by a novel splice site mutation in a patient with congenital insensitivity to pain with anhidrosis
Background: Congenital insensitivity to pain with anhidrosis (CIPA) is a rare autosomal recessive genetic disease characterized by the lack of reaction to noxious stimuli and anhidrosis. It is caused by mutations in the NTRK1 gene, which encodes the high affinity tyrosine kinase receptor I for Neurotrophic Growth Factor (NGF). -- Case Presentation: We present the case of a female patient diagnosed with CIPA at the age of 8 months. The patient is currently 6 years old and her psychomotor development conforms to her age (RMN, SPECT and psychological study are in the range of normality). PCR amplification of DNA, followed by direct sequencing, was used to investigate the presence of NTRK1 gene mutations. Reverse transcriptase (RT)-PCR amplification of RNA, followed by cloning and sequencing of isolated RT-PCR products was used to characterize the effect of the mutations on NTRK1 mRNA splicing. The clinical diagnosis of CIPA was confirmed by the detection of two splice-site mutations in NTRK1, revealing that the patient was a compound heterozygote at this gene. One of these alterations, c.574+1G > A, is located at the splice donor site of intron 5. We also found a second mutation, c.2206-2 A > G, not previously reported in the literature, which is located at the splice acceptor site of intron 16. Each parent was confirmed to be a carrier for one of the mutations by DNA sequencing analysis. It has been proposed that the c.574+1G > A mutation would cause exon 5 skipping during NTRK1 mRNA splicing. We could confirm this prediction and, more importantly, we provide evidence that the novel c.2206-2A > G mutation also disrupts normal NTRK1 splicing, leading to the use of an alternative splice acceptor site within exon 17. As a consequence, this mutation would result in the production of a mutant NTRK1 protein with a seven aminoacid in-frame deletion in its tyrosine kinase domain. --Conclusions: We present the first description of a CIPA-associated NTRK1 mutation causing a short interstitial deletion in the tyrosine kinase domain of the receptor. The possible phenotypical implications of this mutation are discussed.This investigation was supported by the Instituto de Salud Carlos III and the Fundacion Vasca de Innovacion e Investigacion Sanitarias (funds to ES)
Radiation Dose in Coronary Angiography and Percutaneous Coronary Intervention: Establishment of Diagnostic Reference Levels at the Philippine Heart Center
Influenza activity in Cambodia during 2006-2008
<p>Abstract</p> <p>Background</p> <p>There is little information about influenza disease among the Cambodian population. To better understand the dynamics of influenza in Cambodia, the Cambodian National Influenza Center (NIC) was established in August 2006. To continuously monitor influenza activity, a hospital based sentinel surveillance system for ILI (influenza like illness) with a weekly reporting and sampling scheme was established in five sites in 2006. In addition, hospital based surveillance of acute lower respiratory infection (ALRI) cases was established in 2 sites.</p> <p>Methods</p> <p>The sentinel sites collect weekly epidemiological data on ILI patients fulfilling the case definition, and take naso-pharyngeal specimens from a defined number of cases per week. The samples are tested in the Virology Unit at the Institut Pasteur in Phnom Penh. From each sample viral RNA was extracted and amplified by a multiplex RT-PCR detecting simultaneously influenza A and influenza B virus. Influenza A viruses were then subtyped and analyzed by hemagglutination inhibition assay. Samples collected by the ALRI system were tested with the same approach.</p> <p>Results</p> <p>From 2006 to 2008, influenza circulation was observed mainly from June to December, with a clear seasonal peak in October shown in the data from 2008.</p> <p>Conclusion</p> <p>Influenza activity in Cambodia occurred during the rainy season, from June to December, and ended before the cool season (extending usually from December to February). Although Cambodia is a tropical country geographically located in the northern hemisphere, influenza activity has a southern hemisphere transmission pattern. Together with the antigenic analysis of the circulating strains, it is now possible to give better influenza vaccination recommendation for Cambodia.</p
Structure and organization of the human TRKA gene encoding a high affinity receptor for nerve growth factor
Nerve growth factor (NGF) induces neurite outgrowth and promotes survival of embryonic sensory and sympathetic neurons. TRKA, a receptor tyrosine kinase cloned from a human colon cancer was later found to be expressed in the nervous system and phosphorylated in response to NGF. Somatic rearrangement(s) of the TRKA gene (also designated NTRK1) are responsible for formation of some oncogenes. Genetic defects in TRKA are responsible for a human disorder, congenital insensitivity to pain with anhidrosis (CIPA). We report here isolation and characterization of the TRKA gene which spans at least 23 kb and is split into 17 exons. Exon sizes range from 18 to 394 bp and intron sizes range from 170 bp to at least 3.3 kb. Sizes and boundaries of the exons were determined, and all the splice donor and acceptor sites conformed to the GT/AG rule. Approximately 1.2 kb of the 5\u27-flanking regions was sequenced, and putative regulatory elements were identified. These results will be useful for studies on the developmental and biological regulation of the TRKA gene and for further characterization of mutations in CIPA patients as well as elucidation of mechanisms responsible for rearrangement(s) observed in human tumors
Congenital insensitivity to pain with anhidrosis (CIPA): effect of TRKA (NTRK1) missense mutations on autophosphorylation of the receptor tyrosine kinase for nerve growth factor
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