cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2011.1777
title: Polynmials with nonngative real coefficients

description: Certain properties of polynomials with nonnegative real coefficients are proved generalizing those of Roitman and Rubinstein in 1992. The results include finding the smallest positive real number r such that the polynomial (x-r)f(x) has a positive leading coefficient and other coefficients being nonnegative when f(x) is a given real polynomial.
DOI: 10.14457/cu.the.2011.1778
title: Effect of enamel surface treatment on tensile bond strength of rebonded metal alloys

description: The purpose of this study was to compare tensile bond strength between bonded and rebonded metal alloys to enamel and study the effect of different enamel surface treatments to improve tensile bond strength of rebonded metal alloys. One hundred and thirty-two bovine incisors were embedded in PVC tube using self-curing acrylic resin. Wax patterns were made and cast with base metal alloy. Teeth and metal specimens were flattened with 600-grit silicon carbide paper and metal specimens were sandblasted. Then, 66 metal specimens were cemented to the teeth with Superbond C&B and other 66 metal specimens with Panavia F2.0. The tensile bond strength was measured and mode of failure was analyzed. After debonding, visible cement was cleaned with ultrasonic scaler. Metal specimens were then sandblasted and specimens in each group of cement were divided into 6 groups of 11 each. Teeth in each group were treated with sandblasting, hydrogen peroxide with sodium ascorbate, ethyl acetate in acetone, methyl methacrylate, methyl formate-methyl acetate mixture and no treatment group. One specimen was randomly selected and inspected under SEM to determine the morphological change. Specimens were rebonded and tensile bond strength was tested and analyzed. In Superbond C&B group, high rebonding strengths were obtained when enamels were treated with sandblasting, methyl methacrylate and methyl formate- methyl acetate mixture group. In Panavia F2.0 group, no enamel surface treatments could improve rebonding strength. Combination of metal sandblasting and enamel treating with sandblasting, methyl methacrylate or methyl formate–methyl acetate mixture after Superbond C&B cementation could increase rebonding strength comparing with untreated enamel.
DOI: 10.17632/2cxnyxc8f8.1
title: Data for: Experience-Based and Demographic Predictors of Evacuation Decisions in Hurricanes Harvey and Irma

description: Experience-Based and Demographic Predictors of Evacuation Decisions in Hurricanes Harvey and Irma
DOI: 10.5519/qd.c1umhqzx
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (134 records)
DOI: 10.5519/qd.dul20vm5
title: Query on the Natural History Museum Data Portal (data.nhm.ac.uk) (119 records)
DOI: 10.6073/pasta/782cc3aa97326347e41789a9bf09a0dc
title: McMurdo Dry Valleys LTER: High frequency measurements from lake-based "Blue Box" monitoring stations in the McMurdo Dry Valleys, Antarctica from 1994 to present

description: As part of the McMurdo Dry Valleys Long Term Ecological Research program, continuous stage (lake level), ice surface ablation, surface PAR, and underwater PAR are collected at various lakes throughout the McMurdo Dry Valleys of Antarctica. This package contains data measured at 20 minute intervals for Lake Fryxell, Lake Hoare, East Lake Bonney, and West Lake Bonney in Taylor Valley as well as Lake Miers in Miers Valley. MCM sometimes refers to these measurements as "blue box" data because the instrumentation used to be housed in a blue box.
DOI: 10.7910/dvn/1hgiv8/3fbzb7
title: 0000072792.nc

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DOI: 10.7910/dvn/1hgiv8/6q8ml1
title: 0000078912.nc

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DOI: 10.7910/dvn/1hgiv8/ed1yu0
title: 0000070344.nc

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DOI: 10.7910/dvn/1hgiv8/fsqodv
title: 0000077832.nc

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DOI: 10.7910/dvn/1hgiv8/fwbclz
title: 0000074736.nc

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DOI: 10.7910/dvn/1hgiv8/g2dtam
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DOI: 10.7910/dvn/1hgiv8/hkgo7y
title: 0000073728.nc

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DOI: 10.7910/dvn/1hgiv8/vzfggy
title: 0000076176.nc

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DOI: 10.7910/dvn/1hgiv8/xoeufp
title: 0000074808.nc

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DOI: 10.14457/cu.the.2011.1779
title: Factors affecting selectivity and resolution in micellar electrokinetic chromatography and capillary electrochromatography

description: This work involves the theoretical models of separation selectivity for charged analytes in micellar electrokinetic chromatography (MEKC), and comparison of selectivity of neutral monoliths for peptides and proteins separation in capillary electrochromatography (CEC). Equations and theoretical models for MEKC separation selectivity (αMEKC) were established, in which αMEKC is related to dimensionless values of mobility selectivity (αCZE) in capillary zone electrophoresis (CZE) and retention selectivity (αk) in MEKC, and where αCZE and αk are defined as the ratio of electrophoretic mobility in CZE and the ratio of retention factor in MEKC for two charged analytes, respectively. For example, MEKC separation of two charged analytes can enhance αMEKC when the selectivity ratio (ρ) is greater than 1.0 (ρ = αk/αCZE), while lower αMEKC is obtained with ρ ≤1.0. Using alkylparabens as test analytes, excellent agreement was found between the observed αMEKC and prediction according to the theoretical models of αMEKC. In addition, neutral monolithic CEC columns with C8-, C12- and C16- alkyl moieties were prepared by the copolymerization of the functional monomers C8-methacrylate, C12-acrylate and C16-methacrylate, respectively with the crosslinker pentaerythritol triacrylate. The C16-monolith provided better separation efficiency (N) for alkylbenzenes (N of 200,000, 162,000, 150,000 plates/m for C16-, C12- and C8-monoliths, respectively), and yielded better separation for tryptic peptide mapping. However, the C8-monolith provided better separation efficiency for proteins (N of 332,000, 236,000, 225,000 plates/m for C8-, C12- and C16-monoliths, respectively).
DOI: 10.14457/cu.the.2011.1780
title: Technical assessment of artifact procution from neuro endovascular coil at 3 tesla MRI : an in vitro study

description: Magnetic resonance imaging (MRI) is an essential part in diagnostic radiology and post-treatment valuation. MRI 3 Tesla is becoming more and more widespread due to high signal to noise ratio (SNR). The artifact in magnetic resonance imaging results from endovascular coils. Susceptibility artifacts and geometric distortions caused by magnetic field inhomogeneity- related signal loss is used to refer to an artifact in magnetic resonance images. It consists of a region of signal void with a surrounding area of an increased signal intensity that appears to be considerably larger than the actual size of the device causing the artifact. RF metal interaction effects were investigated systematically at B0 = 3 Tesla, analyzing correlated image artifacts for endovascular coils. The objective of the study is to compare the size of the artifact on the MR image to the actual size of endovascular coils using a 3 Tesla magnetic resonance imaging system, in vitro study. Endovascular coils were made from detachable platinum coils and aneurysm models were constructed by using catheters. A drop of gadolinium in normal saline solution was injected into each catheter.MRI 3 Tesla Philips Model Achieva. Pulse sequence selections were: Spin echo (conventional), fast spin echo, Inversion Recovery, Fast Gradient echo while additional parameters were Echo time and Turbo Factor. Improved visualization of peri-aneurysmal soft tissues is best accomplished by Spin echo for Fast spin echo sequences are even better suited to reduce metal artifact. Furthermore, shorter turbo factor and shorter effective TE in the latter sequences are beneficial for the same reason as sequences having shorter TE. Sequences with a shorter TE are preferred because there is less time for dephasing and frequency shifting. Imaging at gradient echo series increases susceptibility artifacts. In this in vitro study, we have defined some of the major characteristics related to MRI imaging of coil packs. conclusions from this study are; 1) Pulse sequence Spin echo is best reduce susceptibility artifact; 2) Reducing the TE is the main factor in improving peri-aneurysmal visualization on MRI images; 3) The use of small field of view, high resolution matrix and thin slice can help reduce susceptibility artifacts. Artifacts are also produced in the frequency encoding.
DOI: 10.14457/cu.the.2011.1781
title: Effects of a multicomponent proactive nursing program applying the chronic care model on blood pressure control and satisfaction with care of hypertensive older persons

description: Hypertension is a common health problem in older persons and has been met with limited success in controlling blood pressure worldwide. The purposes of this research were to evaluate the effects of a multicomponent proactive nursing (MPN) program on blood pressure control and satisfaction with care of hypertensive older persons. The 3 month MPN program based on the Chronic Care Model (Wagner, 1998), was developed by literature review and implemented at two health centers in Nakhon Si Thammarat, Thailand. A hundred participants were studied with matched pairs and random assignment to the intervention or control group. The intervention consisted of education, monitoring, and skill training. Testing was conducted at baseline, 3 and 6 month on both an experimental and a control groups. Data was analyzed by repeated measures ANOVA and Chi-square. The results indicated that the participants in the experimental group had lower mean values of systolic and diastolic blood pressure at three and six months. Post-test mean values of systolic and diastolic blood pressure were significantly lower in the experimental group (p &lt; .001). The percentage of participants maintaining blood pressure control was also significantly greater in the intervention group at 3 months (p &lt; .001) and at 6 months (p = .005). The findings indicated that the MPN program effectively improved blood pressure control and in hypertensive older persons. Moreover, the program was effective for increasing patient satisfaction with nursing care score in the experimental group (p &lt; .001) compared to the control group. These results suggest that implementing this program at health centers would result in better control of HTN in this high risk group.
DOI: 10.17632/hz64bdnrzs.1
title: Data for: Social Vulnerability in the Coastal Region of Bangladesh: An Investigation of Social Vulnerability Index and Scalar Change Effects

description: We have carried out Principal Component Analysis (PCA) for the Coastal Area of Bangladesh at Union and Mouza level (south-eastern part of the coastal region). The excel files contain the score of PCs and also the composite score. We have uploaded the do file for the Stata software as well as the data file which is readable in Stata software.
DOI: 10.7910/dvn/1hgiv8/8gls2k
title: 0000077184.nc

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DOI: 10.7910/dvn/1hgiv8/cuka1h
title: 0000070920.nc

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DOI: 10.7910/dvn/1hgiv8/egukfd
title: 0000070560.nc

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DOI: 10.7910/dvn/1hgiv8/eqmmsr
title: 0000073512.nc

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DOI: 10.7910/dvn/1hgiv8/hb4eox
title: 0000078408.nc

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DOI: 10.7910/dvn/1hgiv8/p5zrzy
title: 0000075816.nc

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DOI: 10.7910/dvn/1hgiv8/sfclul
title: 0000070416.nc

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DOI: 10.7910/dvn/1hgiv8/xptqon
title: 0000070632.nc

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DOI: 10.7910/dvn/1hgiv8/zi2yma
title: 0000077328.nc

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DOI: 10.14457/cu.the.2011.1782
title: Assessment of rural residents’ health-related quality of life and health inequality in Liangcheng county, China

description: This is a cross sectional descriptive study conducted in Liangcheng County, China. This study aims to assess rural residents’ health-related quality of life and health inequality. It is a face-to-face interview, and altogether 948 households were collected. The main findings of this study are that female group, elderly group, low educational level group and low income level group have the higher proportion of problems on each EQ-5D dimension. Educational level, annual household income, housing space, employment status, chronic disease, two-week disease, age, alcoholconsumption and accessibility of health service have significant relationship with health-related quality of life. According to the results of study, health-related quality of life has a positive relationship with educational level, annual household income, housing space, employment status and alcoholconsumption at 5% significant level, while health-related quality of life has a negative relationship with chronic disease, two-week disease, age and accessibility of health service at 5% significant level. This study also finds that annual household income has a positive relationship with health-related quality of life. In addition, the concentration index is -0.1250 when health variable is prevalence rate of chronic disease. This result indicates that prevalence rate of chronic disease takes higher rates among poorer people and Liangcheng County has a certain degree inequality.
DOI: 10.14457/cu.the.2011.1783
title: Cost effectiveness analysis of directly observed therapy, short course management, for pulmonary tuberculosis in Mongolia

description: Objectives: To evaluate and compare the cost and treatment outcomes associated with different directly observed treatment, short course (DOTS) strategies in Mongolia as of 2010. New cases of smear – positive pulmonary tuberculosis cohorts were enrolled. Methods: Tuberculosis (TB) control strategy, supervised by government financed tuberculosis dispensary (TB center), was compared with volunteer - based DOTS program from Mongolian Anti-Tuberculosis Association (MATA). Cost effectiveness analysis was undertaken by using conventional method of computation by Microsoft Excel. Decision tree model was used per successfully treated case. Costs (US dollars as of 2010) were calculated on the basis of treatment periods and treatment outcomes. Treatment outcomes were estimated for the period of one year of sputum smear- positive pulmonary tuberculosis patients with cured and successfully treated cases on the basis of Mongolian evidence for the efficacy of the chosen strategies. Results: Cost effectiveness ratio (CER) presents the preference for DOTS with MATA volunteers over the Dispensary program. The uncertainty ranges surrounding health effects were significantly different, with ample probability that DOTS program with MATA volunteers could lead to more curable outcomes than dispensaries. Cost effectiveness per successful treatment was US$ 954.90 for Dispensary program, while it was US$ 809.48 for MATA program. Cost savings from less failed and defaulted treatment were revealed in relation to DOTS with MATA volunteers. After running the sensitivity analysis by decreasing default rate for dispensary program to the equal rate of DOTS with MATA volunteers, CER of Dispensary DOTS was improved but has not reached to MATA program. High cost of inpatient clinic in rural areas is one of the determining factors for the high cost of DOTS program. However, decreasing cost of inpatient clinic by downsizing inpatient stay, MATA program has shown to be more sensitive and to be even more cost effective intervention. Conclusions: Due to high rates of failed and defaulted cases, and high travel cost among beneficiaries from dispensary DOTS, volunteer based MATA program demonstrates more cost effective approach. It is decisive that DOTS with MATA volunteers is a cost - saving intervention in Mongolia.
DOI: 10.14457/cu.the.2011.1784
title: Risk management for international construction joint ventures : case studies of Vietnamese contractors

description: Vietnam is a Southeast Asian country with a great expansion of the construction industry in recent years. To enter the local market, several international construction companies have been cooperating with local partners in the form of international construction joint ventures (ICJVs). This business form has been adopted in the construction industries worldwide because foreign contractors can share their work experiences and resources with local contractors that understand cultural, political, and legal factors in their countries well. In spite of its numerous merits, it is highly risky for all contractors to implement this business scheme. Managing ICJVs in Vietnam is extremely risky due to several internal and external factors such as unstable economy, limited managerial skills of Vietnamese contractors, and cultural difference of the partners. To manage such risks, most local contractors rely solely on their professional experience, rather than implementing systematic risk management. This research presents an application of risk management to identify, assess, and respond to risk factors affecting three performance stages of ICJV projects in Vietnam. The results were then used to establish the risk profile of the implementation of ICJVs in Vietnam. The questionnaire surveys and in-depth interviews were used to gather information from 15 respondents, who are experienced in ICJV projects. Forty-seven risk factors affecting the performance of ICJVs were identified and categorized into three risk groups. The probability and impact of such risks were assessed by using the PI method. The critical risk factors in different stages of ICJV projects were then identified. For example, the startup stage of ICJV projects encompasses such critical risk factors as the partners’ parent companies, financial aspects of ICJV, economic problems, management issues, and social problems. The financial, management, and economic issues are the critical risk factors throughout the three stages of ICJV. The impacts of the risk factors on cost, schedule, scope, and quality were addressed. Financial problems, breach of contracts by ICJV partner, excessive demands by clients, subcontractors/suppliers, project management team, and force majeure issues contribute to significant impact on multiple objectives of ICJV projects. The risk-response measures implemented by Vietnamese contractors in ICJV projects were collected by in-depth interviews. The most common risk response measure was risk mitigation, whereas risk transfer and risk retention were not favorable alternatives. Risk avoidance was considered the last option to cope with these risk factors.These results were summarized to propose the risk response strategies of ICJVs in Vietnam. By integrating all the previous results, the risk profile for ICJV projects in Vietnam was developed. The findings in this research can be used to assist ICJVs, local contractors, and foreign contractors in planning and implementing ICJVs in Vietnam successfully.
DOI: 10.14457/cu.the.2011.1785
title: The comprehensive model of the determinants on export performance of agricultural firms in Thailand

description: This study aims to develop a comprehensive model of the determinants on export performance of agricultural firms in Thailand. The empirical data are collected to examine the impacts of factors concerning the firm’s resource (export commitment and international market knowledge), external environment (perceived competitive intensity, tariff and non-tariff barriers and government agency support), and export product strategy upon the export performance of agricultural firms. The conceptual framework in this study is based on the resource-based view theory, industrial organization theory, internationalization process theory and consumer perspective on agricultural exporting. The model is analyzed by using data set of 369 observations that are collected through a mail survey. The respondents are export managers or executives who are responsible for exporting practices from agricultural exporting firms in Thailand including four main product categories: crop and grain, horticulture, fishery, and livestock and daily products. The Structural Equation Model (SEM) is formed and LISREL 8.52 is used for confirmatory factory analysis and structural model assessment to test eleven hypotheses in the model. SPSS 15.0 is used to analyze descriptive statistics. The results of this study reveals threefold (1) firms’ resources are found to have positive impacts on export product strategy, while external environmental factors are not found to have impacts upon export product strategy, (2) export commitment, international market knowledge, perceived competitive intensity, tariff and non-tariff barriers and government agency support are found to have impacts upon the export performance of agricultural firms in Thailand, and (3) export product strategy is not found to have statistically impact on the export performance. The empirical results of this study extend the body of knowledge for the determinants on export performance of agricultural firms in Thailand. In addition, this study provides managerial and policy maker contributions to enhance agricultural export of Thailand in the future.
DOI: 10.14457/cu.the.2011.1786
title: Foreground rejection for parallax removal in video sequence stitching

description: Parallax is a key challenge that leads to inaccurate registration and ghosting effect of objects in the result of panorama image stitching. A novel foreground rejection method is proposed in this thesis to remove parallax in video sequence stitching. Firstly, the global motion is estimated between two frames using SIFT feature matching. The foreground is obtained by applying the logical OR operators to the pixels that have high displaced frame difference. There are two groups of foreground: the near-frames and the far-frames groups. Then, voting scheme is applied in the way that only the near-frame foreground inside the area of far-frame foreground is considered as the actual foreground. The extracted foreground at this stage is mostly the edges of objects. Since the change of a foreground shape is very small, 2D translation motion from tracking algorithm is used to project foreground (edges) from other frames to the current frame. The edges from other frames are then used to refine the edge in the current frame. The 2-stage rendering is then applied to the extracted edge for the foreground area. The foreground area is refined by the foreground area of other frames mapped to the current frames by 2D translation model. The experimental results of 13 test video sequences indicated that the removal of parallax objects by the proposed foreground rejection method led to (1) more accurate registration, (2) the reduction of the ghosting effect, (3) sharper stitched result and (4) more background information in the results.
DOI: 10.7910/dvn/1hgiv8/8ikwet
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DOI: 10.7910/dvn/1hgiv8/dvt8c1
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DOI: 10.7910/dvn/1hgiv8/j7sfwi
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DOI: 10.7910/dvn/1hgiv8/kiss8c
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DOI: 10.7910/dvn/1hgiv8/nqgrn7
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DOI: 10.7910/dvn/1hgiv8/paesb9
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DOI: 10.7910/dvn/1hgiv8/pbvsec
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DOI: 10.7910/dvn/1hgiv8/qk1acl
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DOI: 10.7910/dvn/1hgiv8/wollpq
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DOI: 10.7910/dvn/1hgiv8/zlw2wn
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