cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.14457/cu.the.2011.1787
title: Effect of core material stiffness on fracture resistance in Endodontically treated teeth with flared root canals

description: Background and rationale: Different core materials may have an influential effect on the fracture resistance of endodontically treated teeth (ETT) with flared root canals Objective: This study compared the fracture resistance of endodontically treated teeth with flared root canals, restored using core build-up materials with different modulus of elasticity and a quartz fiber post. Material and methods: Thirty two extracted human mandibular premolars were decoronated to obtain 15 mm of root length, endodontically performed and prepared as flared canal with 1 mm of dentin thickness wall to the depth of 7.5 mm into root. All teeth were restored with D.T. Light post #1 and luted with Super-Bond C&B resin cement and then randomly divided into 4 groups (n=8). Four core build-up resin composites: Clearfil Photocore, Multicore Flow, Built-it and Coreflo were used as core foundation. The specimens were embedded in self-cured acrylic resin blocks with a simulated PDL. All specimens were loaded on a universal testing machine with a crosshead speed of 1 mm/min on the buccal surface at an angle of 135๐ to the long axis of the tooth until failure occurred. Results: The fracture resistance of groups 1, 2, 3 and 4 were 864.7 ± 189.8 N, 1519.2 ± 278.9 N, 1110.8 ± 229.8 N, and 901.6 ± 183.6 N, respectively. One-way ANOVA and Tukey HSD post-hoc analysis revealed the fracture resistance of groups 1 was significantly higher than group 2, 3 and 4 (p&lt;0.05). No significant differences were found in groups 2, 3 and groups 4. Conclusion: Within the limitation of this study, Multicore Flow showed better fracture resistance in flared canals with favorable fracture.
DOI: 10.14457/cu.the.2011.1788
title: A physicomimetics desynchronization algorithm without global time knowledge for wireless sensor networks

description: Desynchronization is useful for scheduling nodes to perform tasks at different time. This property is desirable for resource sharing, Time Division Multiple Access (TDMA) scheduling, and data transmission collision avoiding. However, to desynchronize nodes in wireless sensor networks is difficult due to several limitations. In this dissertation, we focus on desynchronization for resource-limited wireless sensor networks that resource-limited sensor nodes lack global time knowledge (\\textit{i.e.}, clocks are not synchronized). We propose a novel physicomimetics desynchronization algorithm to organize all accesses to a shared resource to be collision-free and even equitable. Inspired by robotic circular formation and Physics principle, the proposed algorithm creates an artificial force field for wireless sensor nodes. Each neighboring node has artificial forces to repel other nodes to perform tasks at different time phases. Nodes with closer time phases have stronger forces to repel each other in the time domain. Each node adjusts its time phase proportionally to total received forces. Once the total received forces are balanced, nodes are desynchronized. We evaluate our desynchronization algorithm on TOSSIM, a simulator for wireless sensor networks and evaluate on real hardware devices running TinyOS. The evaluation results indicate that the proposed algorithm is stable, scales much better than existing approaches, and incurs significantly lower desynchronization error.
DOI: 10.14457/cu.the.2011.1789
title: Bioactive compounds suppressing differentiation of osteoclasts

description: Bone formation and bone resorption are the processes which maintain bone homeostasis. The balance in functioning of osteoblasts and osteoclasts regulates bone remodeling. Dysregulated bone homeostasis results in bone diseases including osteoporosis. Therefore, osteoclasts are one of the target cells for anti-resorptive therapies to treat osteoporosis. To discover new anti-resorptive agents, we screened natural compounds from plants that inhibit osteoclastogenesis. In this study, we screened ten compounds from Kaempferia parviflora and six limonoid compounds from Xylocarpus moluccensis. We found that 7-oxo-deacetoxygedunin (7-OG), a limonoid compound from Xylocarpus moluccensis markedly inhibited the differentiation of osteoclasts induced by receptor activator of nuclear factor-кB ligand (RANKL). Treatment with 7-OG decreased the tartrate resistant acid phosphatase (TRAP) activity in pre-osteoclasts which was induced by RANKL in RAW264.7 cell line. The IC50 for cytotoxicity and anti-osteoclastogenic activity was more than 22.80 µM and 2.50 µM, respectively. We investigated the effects of 7-OG on the expression of osteoclast-related genes, NFATc1 and Cathepsin K, and found that treatment with 7-OG significantly suppressed the expression of both genes (p&lt;0.05). Detailed analysis uncovered that 7-OG treatment suppressed the activation of NF-кB and MAPK signaling pathways. These results suggested that 7-OG inhibits osteoclastogenesis induced by RANKL by inferring with NF-кB and MAPK pathways and has potential to be a therapeutic agent for osteoporosis.
DOI: 10.14457/cu.the.2011.1790
title: Factors and their relationships affecting land use change during 1988-2007 and predicting future land use by clue-s model in Huai Thap Salao watershed, Changwat Uthai Thani

description: GIS and remote sensing data interpretation, field investigation, and laboratory analysis were carried out to investigate dynamic spatial patterns of land use changes and to identify driving factors that caused land use changes during 1988-2007 in Huai Thap Salao watershed, Changwat Uthai Thani. Besides, the purpose of study was to simulate model of land use changes using CLUE-s model to predict the future land use change in current. Dynamic spatial patterns of land use changes in Huai Thap Salao watershed during 1988-2007 were detected from remote sensing interpretation and field surveys that were complied into a GIS database. Various maps were constructed from those relevant parameters derived from the database. Deforestation which the major change was mostly found in the central part (Huai Rabam stream) and the eastern part (Huai Thap Salao and Huai Rang stream) of Huai Thap Salao watershed. The affecting parameters, namely elevation, slope, mean annual precipitation, distance to streams, distance to roads, distance to villages and soil textures were analyzed by logistic regression analysis. The result revealed that the forest land had been changed to agriculture land and were related to the distance to villages and the distance to roads in Huai Thap Salao watershed during 1988-2007. The CLUE-s model was simulated from two scenarios, namely, scenario without restriction area and scenario with reserved area in 2027. Without restriction area, the result revealed that the highest rate of deforestation would be 63% (from previously 68% in 2007) and mostly in the central part of Huai Thap Salao watershed whereas with reserved area, it revealed that the mostly increased land use category would be urban and built-up land surrounding Amphoe Lan Sak in the eastern part of Huai Thap Salao watershed. The final results from this research can be used as a spatial data for decision making in handling, monitoring, and controlling the land use and forest management in order to enhance the land use and forest management efficiency.
DOI: 10.14457/cu.the.2011.1791
title: Comparison of daily mortality effects of outdoor (ambient) air pollution between 1999-2001 and 2006-2008 in Bangkok : time stratified case-crossover study

description: Several case-crossover studies have shown association between ambient air pollution and cardiovascular or respiratory mortality. Thailand has not been done Epidemiological Surveillance System by case-crossover design to continuous monitoring air pollution and mortality. This study aimed 1) to examine the association between ambient air pollution and daily mortality in Bangkok, 2) to compare health effect of air pollution among years 1999-2001 and 2006-2008. 3) to compare the applicability of case-crossover design in this study with other design as time series study. Time-stratified case-crossover analysis was used to evaluate the short term effects of ambient air pollution (Nitrogen dioxide (NO₂), Ozone (O₃), Carbon monoxide (CO), Sulfur dioxide (SO₂) and Particulate matter 10 μg/m³ (PM₁₀)) on natural, cardiovascular and respiratory mortality. Controls period were selected by matched days of the week in the same month. Time dependent variables such as temperature today (lag0) and humidity yesterday (lag1) for non-external mortality model, circulatory mortality and respiratory mortality we used moving average of humidity as adjustor in the model of conditional logistic regression analyses. 228,103 non-external deaths in study periods were included. The findings for non-external mortality showed statistically significant associations with PM₁₀ CO and NO₂ in adjusted models, adjusted OR 1.008 ( 95 %CI 1.004-1.012) adjusted OR 1.002 (95 %CI 1.001-1.004) and adjusted OR 1.008 ( 95 %CI 1.003-1.013) respectively. Carbon monoxide has a difference effect between 2 periods with statistically significant (P-value 0.01), specially for period two has effect on non-external mortality than period one. Ozone level was significant increasing. PM₁₀ CO NO₂ and O₃ (8 hours) have effected on circulatory mortality in adjusted model but respiratory mortality did not. This study showed precise air pollutions in 2006-2008 were more problems than 1999-2001 and statistic significant association. The both methods, time series study and case-crossover study provide generally similar evidence. The using both methods to estimated adverse health effect from air pollution are increasing the strong estimation models.
DOI: 10.14457/cu.the.2011.1792
title: Gold nanopowders for jewelry and decorative applications

description: Gold nanopowders were successfully prepared via a novel green chemistry route. The solution of high concentration of Au³⁺ ion (10,000 ppm) was reduced by sucrose or starch solution in alkaline condition; reducing species were occurred via alkaline degradation of sucrose or starch. The synthesized gold nanoppowders had particles size in the range of nanometer to sub-micrometer (150 – 4,000 nm) as indicated by scanning electron microscope and the complete reduction was investigated by UV-visible spectroscopy. The particle size could be selectively controlled by adjusting concentration of gold ion, concentration of sucrose, and concentration of alkaline. The use of environmentally benign substance like sucrose and starch offer number of benefits such as low production cost, toxic waste reduction, and controllable reaction. This novel route can be easily scaled-up for large-scale production of gold nanopowders.
DOI: 10.14457/cu.the.2011.1793
title: Encapsulation of pendimethalin by ate coalginmposite beads

description: In this research, the formulations for chitosan and chitosan-alginate beads containing pendimethalin were developed and explored for their control release ability. The entrapment of pendimethalin in chitosan beads was investigated. The release rate of pendimethalin loaded chitosan was not satisfactory. To increase the release rate of pendimethalin, alginate as a good water soluble polymer and can act as hydrogel was used in combination with chitosan. The study showed that chitosan and chitosan-alginate beads had very low release rates. To solve this problem, alginate beads were prepared to control the release of pendimethalin. During drying process of making beads, the initial spherical shape was lost and shrinkage occurred. The beads were eventually prepared using alginate and starch. SEM images of beads suggested the formation of spherical beads. FTIR confirmed chemical stability of pendimethalin in alginate-starch beads. A series of beads with different compositions were prepared by varying type of starch, ratio of alginate, starch, concentration of CaCl₂ and immersion time. When the concentration of CaCl₂ and immersion time were increased, the swelling and release rate decreased. The mechanism of alginate-starch beads was believed to release pendimethalin at the beginning once the beads were swelled and then eroded together with pendimethalin release. The study showed that alginate-starch beads had sufficient release of pendimethalin. The efficacy study confirmed that alginate-starch beads could be used to control the germination of weeds.
DOI: 10.14457/cu.the.2011.1794
title: Synthesis of high-concentration palladium nanoparticles using sucrose as reducing agent

description: In this work, we have developed a novel green chemistry approach for the synthesis of high-concentration (100-1000 ppm) palladium nanoparticles (PdNPs) and flowerlike palladium microstructures (FPdµSTs) using reducing agent and stabilizer which are very cheap and harmless to the environment PdCL[superscript 2-][subscript 4] was reduced while the obtained nanoparticles were stabilized by a non-toxic sucrose and hydrogen peroxide (HP). Spherical PdNPs and FPdµSTs with particle size in the range of 100 nm to 5 μm were successfully synthesized. The added sodium hydroxide is a key factor for the generation of reducing species from sucrose. The optimal synthesized condition was determined in order to completely reduce all PdCL[superscript 2-][subscript 4] and to produce small PdNPs with high stability. This approach can be scaled-up for the production of high-concentration PdNPs for industrial use with a highly competitive price. Morphology (size and shape) and complexity of the FPdµSTs could be tuned through the synthetic conditions (i.e., concentrations of PdCL[superscript 2-][subscript 4] and HP). The time dependent investigation of FPdµSTs formation suggested that the FPdµSTs evolved from PdNPs with a particle size of 3 nm. The naked FPdµSTs with clean surfaces are expected to possess high catalytic activity.
DOI: 10.3886/icpsr37411.v1
title: Massachusetts Health Reform Survey, 2018
title: Version 1

description: In April 2006, Massachusetts passed a comprehensive health care reform bill entitled An Act Providing Access To Affordable, Quality, Accountable Health Care (Chapter 58 of the Acts of 2006), that sought to move the state to near universal coverage. In order to track the impacts of Chapter 58, the Blue Cross Blue Shield of Massachusetts Foundation began funding an annual telephone survey of nonelderly adults in the Commonwealth in fall 2006, just prior to the implementation of key elements of the law. That survey, called the Massachusetts Health Reform Survey (MHRS), was fielded in the fall of 2006-2010, 2012, 2013, 2015, and 2018. This data collection comprises data from the 2018 round of the Massachusetts Health Reform Survey (MHRS). Topics covered by the survey include health insurance status; specific types of health insurance coverage held by the survey respondents; insurance premiums and covered services for those with insurance; access to and use of health care; out-of-pocket health care costs and medical debt; health and disability status; mental health and substance use disorders. Demographic variables include income, race, and employment status.
description: ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection: Checked for undocumented or out-of-range codes..
description: Response Rates: 13.6 percent
description: Datasets: DS0: Study-Level Files DS1: Public Use DS2: Restricted Use
description: Health Reform Monitoring Survey (HRMS) Series
description: computer-assisted telephone interview (CATI)
description: Adults aged 19-64 in Massachusetts households with a landline telephone and/or a cellphone. Smallest Geographic Unit: State
description: The MHRS sample was designed by Marketing Systems Group (MSG), using the GENESYS IDplus procedures to eliminate non-working and business landline numbers from the sample. Households were selected using stratified random-digit dialing. One respondent was randomly selected from each eligible household. Uninsuredand low- and moderate-income adults were oversampled.
DOI: 10.7910/dvn/1hgiv8/4u2bhh
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DOI: 10.7910/dvn/1hgiv8/8h9hjg
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DOI: 10.7910/dvn/1hgiv8/9i4ev1
title: 0000071136.nc

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DOI: 10.7910/dvn/1hgiv8/ax0mro
title: 0000072720.nc

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DOI: 10.7910/dvn/1hgiv8/b62vh8
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DOI: 10.7910/dvn/1hgiv8/bfahy6
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DOI: 10.7910/dvn/1hgiv8/bpwfbq
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DOI: 10.7910/dvn/1hgiv8/fdlryk
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DOI: 10.7910/dvn/1hgiv8/ixcglf
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DOI: 10.14457/cu.the.2011.1795
title: Synthesis of silver nanopowders at high concentrations via green nanotechnology

description: A novel technique for a mass scale production of spherical silver particles powders was developed. A green chemical technique was employed for the preparation of high concentration silver particles colloid (50000 – 100000 ppm). The silver particles powder could be easily precipitated from the colloid. The results from scanning electron microscope (SEM) and dynamic light scattering particle size analyzer indicated a controllable size from nano-scale to micro-scale ranges associated with the employed conditions including concentration of silver salt, concentration of reducing saccharine, pH, and the mixing sequence. Since the synthetic system was designed to meet green chemistry protocols (i.e., using natural substances as the environmentally reducing agent, controlling the complete reduction of silver salt, reducing derivatives, generating no by-products, and performing all procedure under the atmospheric conditions), the production cost is very low and very economic competitive compared that using the conventional borohydride chemistry. The silver particles powders can be employed as raw materials in various industries, such as filler for nanocomposites, conductive silver ink in electronic industry, surface coating for antibacterial applications, and nanosilver clay in jewelry industry.
DOI: 10.14457/cu.the.2011.1796
title: Effect of sol-gel derived supports on CO2 reforming reaction of methane over supported nickel catalysts

description: Effect of sol-gel derived supports on CO₂ reforming reaction of methane over supported nickel catalysts was studied as well as the effect of different types of supports, prepared by sol-gel method and solvothermal method, different phase of alumina and amount of metal loaded on catalysts. It had been found that 7% Ni/y-Al₂O₃ (AIP,solgel) and 50%y-x-Al₂O₃ (AIP,solvothermal) had the highest conversion of 87% and 85.5%, respectively with the highest coke resistance of all the catalysts studied in CO₂ reforming reaction of methane at 700 ℃ and 1 atm. In addition, the effect of addition of water into feed steam had also observed and found the slightly conversion increase with the water addition during the 6 hours on stream of reaction.
DOI: 10.18112/openneuro.ds002257.v1.0.0
title: CRYPTO and PROVIDE EEG Baseline Data
DOI: 10.7910/dvn/1hgiv8/fou6gn
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DOI: 10.7910/dvn/1hgiv8/iihjol
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DOI: 10.7910/dvn/1hgiv8/k4phe7
title: 0000071568.nc

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DOI: 10.7910/dvn/1hgiv8/kxhoyw
title: 0000076392.nc

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DOI: 10.7910/dvn/1hgiv8/o17afv
title: 0000073152.nc

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title: 0000075960.nc

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DOI: 10.7910/dvn/1hgiv8/tq2p4e
title: 0000075456.nc

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DOI: 10.7910/dvn/1hgiv8/wrc3cz
title: 0000076032.nc

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DOI: 10.14457/cu.the.2011.1797
title: Factors influecing depression among elderly in Ban Bangkhae nursing homes, Bangkok, Thailand after flooding

description: Background: Depression is the most common mental health disorder, a disease that that involves the body, mood and thoughts. It is often under diagnosed, especially among elderly people in the nursing home setting. The objective of this study is to determine the prevalence of depression among the elderly people in the nursing home setting, Bangkok, Thailand and identify factors associated with depression. Methods: Cross-sectional study was conducted among 237 participants above the age of 60 at Ban Bangkhae nursing homes; Bangkok Thailand, The measurement tools consisted of Thai Geriatric Depression Scale, UCLA Loneliness Scale (ULS) and other related questionnaires. Multivariable linear regression was used to find association between depressive symptoms and factors with statistical significant of each analysis against the p-value 0.05. Results: The prevalence of major depression was 7.2% and the prevalence of minor depression was 32.1%. The adjusted R Square is 0.413, and F value is 33.873 (p value &lt;0.001) and the Durbin-Watson is 1.746. Loneliness (β = 0.54, P &lt; 0.001), Insomnia, (β = 1.85, P &lt; 0.002) and Lack Social Activity (β = -0.39, P &lt; 0.001) Inadequate of Vitamin D (β = -1.45, P &lt; 0.014) and physical activity (β = -1.46, P &lt; 0.021) associated with depression where (β) is the regression coefficient. Insomnia, loneliness, Physical Activity, Inadequate Vitamin D and Social Activity were found to be the prominent factors with depressive symptoms among Ban Bangkhae nursing homes setting. Limitation: Unforeseen flooding natural disaster from October and December 2011 may have overestimate of the prevalence of depression. Conclusion: The prevalence of depressive symptoms 39.1% was high in comparing to the findings in Thai community dwelling elderly. Insomnia, loneliness, Lack of social Activity, Physical Activity and Inadequate Vitamin D were identified as important factors to emphasize when assessing for depression in the nursing home setting. The findings of this study will assist in developing adequate prevention and treatment strategies among the elderly in the nursing home population.