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Relevant bibliographies by topics / Waltham (Mass.)

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Academic literature on the topic 'Waltham (Mass.)'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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Journal articles on the topic "Waltham (Mass.)"

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Salamone, Loran M., Thomas Fuerst, Marjolein Visser, Marialice Kern, Thomas Lang, Maurice Dockrell, Jane A. Cauley, Michael Nevitt, Francis Tylavsky, and Tim G. Lohman. "Measurement of fat mass using DEXA: a validation study in elderly adults." Journal of Applied Physiology 89, no. 1 (July 1, 2000): 345–52. http://dx.doi.org/10.1152/jappl.2000.89.1.345.

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The accuracy of total body fat mass and leg fat mass measurements by fan-beam dual-energy X-ray absorptiometry (DEXA) was assessed in 60 healthy elderly subjects (aged 70–79 yr). Total fat and leg fat mass at four leg regions (total leg, thigh, midthigh, and calf) were measured with the QDR 4500A (Hologic, Waltham, MA). The four-compartment model and multislice computed tomography scans were selected as criterion methods for total fat and leg fat mass, respectively. Total fat mass from DEXA was positively associated with fat mass from the four-compartment model with a standard error of the estimate ranging from 1.4 to 1.6 kg. DEXA fan-beam tended to overestimate fat mass for total leg and total thigh fat mass, whereas only marginal differences in fat mass measurements at the midthigh and calf were demonstrated (≤0.08 kg, P< 0.0005). Although there were significant differences between DEXA fan beam and the criterion methods, these differences were of small magnitude, suggesting that DEXA is an accurate method for measurement of fat mass for the elderly.

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Barrio-Parra, Fernando, Miguel Izquierdo-Díaz, Luis Jesús Fernández-Gutiérrez del Álamo, Bárbara Biosca, and Eduardo De Miguel. "Modelling the Transference of Trace Elements between Environmental Compartments in Abandoned Mining Areas." International Journal of Environmental Research and Public Health 17, no. 14 (July 15, 2020): 5117. http://dx.doi.org/10.3390/ijerph17145117.

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An openly accessible cellular automaton has been developed to predict the preferential migration pathways of contaminants by surface runoff in abandoned mining areas. The site where the validation of the results of the Contaminant Mass Transfer Cellular Automaton (CMTCA) has been carried out is situated on the steep flank of a valley in the Spanish northwestern region of Asturias, at the foot of which there is a village with 400 inhabitants, bordered by a stream that flows into a larger river just outside the village. Soil samples were collected from the steep valley flank where the mine adits and spoil heaps are situated, at the foot of the valley, and in the village, including private orchards. Water and sediment samples were also collected from both surface water courses. The concentration of 12 elements, including those associated with the Cu-Co-Ni ore, were analyzed by ICP-OES (Perkin Elmer Optima 3300DV, Waltham, MA, USA) and ICP-MS (Perkin Elmer NexION 2000, Waltham, MA, USA). The spatial representation of the model’s results revealed that those areas most likely to be crossed by soil material coming from source zones according to the CMTCA exhibited higher pollution indexes than the rest. The model also predicted where the probabilities of soil mass transfer into the stream were highest. The accuracy of this prediction was corroborated by the results of trace element concentrations in stream sediments, which, for elements associated with the mineral paragenesis (i.e., Cu, Co, Ni, and also As), increased between five- and nine-fold downstream from the predicted main transfer point. Lastly, the river into which the stream discharges is also affected by the mobilization of mined materials, as evidenced by an increase of up to 700% (in the case of Cu), between dissolved concentrations of those same elements upstream and downstream of the confluence of the river and the stream.

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WEILL, Georges. "La conférence internationale sur «Les juifs dans la France contemporaine» (Université Brandeis, Waltham (Mass.), 16-19 avril 1983)." Revue des Études Juives 144, no. 1 (January 1, 1985): 293–96. http://dx.doi.org/10.2143/rej.144.1.2012997.

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Ma, Zhe, Xuexiao Cao, Xiao Guo, Meng Wang, Xiaoliang Ren, Ranran Dong, Rui Shao, and Yan Zhu. "Establishment and Validation of an In Vitro Screening Method for Traditional Chinese Medicine-Induced Nephrotoxicity." Evidence-Based Complementary and Alternative Medicine 2018 (June 28, 2018): 1–15. http://dx.doi.org/10.1155/2018/2461915.

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Renal injury is among the adverse drug reactions (ADRs) caused by herbal medicine products (HMPs). Traditional Chinese medicines (TCMs) have been practiced for over 2000 years in China and East Asia, and herbs are currently used worldwide for the treatment and prevention of chronic and acute disease. Operetta high content analysis (HCA, PerkinElmer, Waltham, MA, USA), which is an in vitro, sensitive, reproducible, multiparametric screening method, was used to evaluate the cytotoxicity of HMPs in cultures of HEK293 human embryo kidney cells. Cytotoxic results were validated by an animal-based subacute toxicity assay. The renal safety of 18 active pharmaceutical agents from 13 TCM herbs with known nephrotoxic potential was evaluated in HEK293 human embryonic kidney cells. A panel of five parameters, cell viability, nuclear area, nuclear roundness, mitochondrial mass, and mitochondrial membrane potential, was utilized to evaluate drug-induced renal mitochondrial and nuclear injury. HCA can be a useful tool for preclinical screening and postclinical evaluation of HMPs. The nephrotoxicity of diosbulbin B and other HMPs was evident at a concentration as low as 0.01 μM.

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Amerinatanzi, Amirhesam, Reza Mehrabi, Hamdy Ibrahim, Amir Dehghan, Narges Shayesteh Moghaddam, and Mohammad Elahinia. "Predicting the Biodegradation of Magnesium Alloy Implants: Modeling, Parameter Identification, and Validation." Bioengineering 5, no. 4 (November 29, 2018): 105. http://dx.doi.org/10.3390/bioengineering5040105.

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Magnesium (Mg) and its alloys can degrade gradually up to complete dissolution in the physiological environment. This property makes these biomaterials appealing for different biomedical applications, such as bone implants. In order to qualify Mg and its alloys for bone implant applications, there is a need to precisely model their degradation (corrosion) behavior in the physiological environment. Therefore, the primary objective develop a model that can be used to predict the corrosion behavior of Mg-based alloys in vitro, while capturing the effect of pitting corrosion. To this end, a customized FORTRAN user material subroutine (or VUMAT) that is compatible with the finite element (FE) solver Abaqus/Explicit (Dassault Systèmes, Waltham, MA, USA) was developed. Using the developed subroutine, a continuum damage mechanism (CDM) FE model was developed to phenomenologically estimate the corrosion rate of a biocompatible Mg–Zn–Ca alloy. In addition, the mass loss immersion test was conducted to measure mass loss over time by submerging Mg–Zn–Ca coupons in a glass reactor filled with simulated body fluid (SBF) solution at pH 7.4 and 37 °C. Then, response surface methodology (RSM) was applied to calibrate the corrosion FE model parameters (i.e., Gamma (γ), Psi (ψ), Beta (β), and kinetic parameter (Ku)). The optimum values for γ, ψ, β and Ku were found to be 2.74898, 2.60477, 5.1, and 0.1005, respectively. Finally, given the good fit between FE predictions and experimental data, it was concluded that the numerical framework precisely captures the effect of corrosion on the mass loss over time.

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Qin, Zeshi, and Juan Shi. "Feasibility of Species Origin Traceability by Hydrogen Stable Isotopes: Sample Case of Lymantria dispar L. (Lepidoptera: Erebidae)." Forests 11, no. 11 (November 17, 2020): 1209. http://dx.doi.org/10.3390/f11111209.

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Lymantria dispar L. (Lepidoptera: Erebidae) is an international quarantine pest with many hosts, widely distributed in Asia, Europe, and America. L. dispar is distributed mainly in the Eastern Monsoon Region of China. Currently, the most effective means of prevention and control of this pest are timely monitoring and early warning. However, their implementation is usually hampered by the lack of feasible methods and tools for fast tracking and traceability. Stable isotope technology can be used for material traceability, but in China, it is rarely employed for insect traceability. Therefore, using L. dispar as an example, we conducted a case study to explore the feasibility of using hydrogen stable isotopes for pest-source traceability. The grid data of hydrogen stable isotopes of global precipitation were downloaded from the Online Isotopes in Precipitation Calculator (OIPC; Bowen and Revenaugh, 2003, Bowen, 2017), and then, a zoning map of hydrogen stable isotopes of precipitation in mainland China was constructed using ArcGIS 10.4.1 (Esri, Redlands, CA, USA). The wings of 284 L. dispar adults captured in five regions in China were selected as experimental samples. A Finnigan Delta V Advantage Isotope Ratio Mass Spectrometer (Thermo Fisher Scientific, Inc., Waltham, Massachusetts, U.S.) and a Flash 2000 HT Elemental Analyzer (Thermo Fisher Scientific, Inc., Waltham, Massachusetts, U.S.) were used to measure the hydrogen stable isotope (δ2H) value of the samples. Then, using the recorded local precipitation hydrogen stable isotope of the sampling site, we performed a data simulation using R software (v.3.2.1; R Development Core Team, Vienna, Austria). A linear regression equation was next established: y = 1.186x − 13.247, where x represents the hydrogen stable isotope ratio of precipitation and y denotes the hydrogen stable isotope ratio of L. dispar. The t-test, F-test, and R2 test results confirmed the high significance and matching with the simulation data used in the model. To further verify the accuracy of the model, L. dispar samples from Chengdu in Sichuan Province were collected for model back-testing. The verification results also evidenced that the actual source of the L. dispar sample can be obtained based on the method applied and the model developed in this paper.

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Altman, Douglas G. "Medical uses of statistics. John C. Bailar, III, and Frederick Mosteller (eds), Nejm books, Waltham mass., 1986. no. of pages: 425. price: £20." Statistics in Medicine 7, no. 9 (September 1988): 1001. http://dx.doi.org/10.1002/sim.4780070912.

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Ligouri, Gianna, Todd Shoepe, and Hawley Almstedt. "Whole Body Vibration Training is Osteogenic at the Spine in College-Age Men and Women." Journal of Human Kinetics 31, no. 1 (March 1, 2012): 55–68. http://dx.doi.org/10.2478/v10078-012-0006-8.

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Whole Body Vibration Training is Osteogenic at the Spine in College-Age Men and WomenOsteoporosis is a chronic skeletal disease characterized by low bone mass which is currently challenging the American health care system. Maximizing peak bone mass early in life is a cost-effective method for preventing osteoporosis. Whole body vibration (WBV) is a novel exercise method with the potential to increase bone mass, therefore optimizing peak bone and decreasing the risk for osteoporotic fracture. The aim of this investigation was to evaluate changes in bone mineral density at the hip, spine, and whole body in college-age men and women who underwent a WBV training protocol. Active men (n=6) and women (n=4), ages 18-22 participated in the WBV training; while an additional 14 volunteers (1 male, 13 female) served as controls. All participants completed baseline and follow-up questionnaires to assess health history, physical activity, dietary intake, and menstrual history. The WBV training program, using a Vibraflex 550, incorporated squats, stiff-leg dead lifts, stationary lunges, push-up holds, bent-over rows, and jumps performed on the platform, and occurred 3 times a week, for 12 weeks. Dual energy x-ray absorptiometry (Hologic Explorer, Waltham, MA, USA) was used to assess bone mineral density (BMD, g/cm2). A two-tailed, t-test identified significantly different changes in BMD between the WBV and control groups at the lateral spine (average change of 0.022 vs. -0.015 g/cm2). The WBV group experienced a 2.7% and 1.0% increase in BMD in the lateral spine and posterior-anterior spine while the control group decreased 1.9% and 0.9%, respectively. Results indicate that 12 weeks of WBV training was osteogenic at the spine in college-age men and women.

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9

Wrigley, C. C. "Medicine, Tradition and Development in Kenya and Tanzania, 1920–1970. By Ann Beck. Waltham, Mass.: Crossroads Press, 1981. Pp. viii + 114. No price stated." Journal of African History 26, no. 4 (October 1985): 441–42. http://dx.doi.org/10.1017/s0021853700029042.

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Vittum, P. J. "Efficacy of Several Turf Insecticides Against European Chafer Larvae, Home Lawn, 1995." Arthropod Management Tests 21, no. 1 (January 1, 1996): 366. http://dx.doi.org/10.1093/amt/21.1.366.

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Abstract Six turf insec-ticides were tested for efficacy against European chafer larvae on a home lawn in Waltham, Mass. Grub populations were ca. 60% eggs, 40% early first instar at the time of application. The lawn consisted of 30% perennial ryegrass, 30% annual bluegrass, 30% crabgrass, and 10% dandelion, and was mowed at ca. 1.5 inches. Treatment plots were 8 ft by 8 ft, replicated 5 times, arranged in a RCB. All applications were made between 11:00 AM and 12:30 PM on 1 Aug 95. Liquid formulations were applied by hand with a watering can, 3 liters per plot. Granular formulations were applied using glass jars with perforated lids. Conditions at the time of application were as follows: air temp. 85° F, sunny and moderately humid with light SW wind (5-10 mph); soil type, silty loam; soil pH 6.6; water pH, 8.2. All plots were hand watered with 0.1 inch immediately after application, and an additional 0.2 inch was applied through overhead irrigation within 2 hr after application. No measurable rain fell in the area for 2 wk after application. Product efficacy was evaluated on 17 Oct (77 DAT) by removing 5 cupcutter plugs (4.25 inch diam) from near the center of each plot, dislodging soil with a hand trowel, and counting all grubs to a depth of 3 inches.

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Dissertations / Theses on the topic "Waltham (Mass.)"

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Walther, Antje [Verfasser]. "Cl. perfringens beim Broiler : ein Beitrag zum Vorkommen in der kommerziellen Mast sowie experimentelle Untersuchungen zur Tenazität des Erregers und seine Beeinflussung durch Kokzidieninfektionen / vorgelegt von Antje Walther." 2009. http://d-nb.info/996197648/34.

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Books on the topic "Waltham (Mass.)"

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Saint Jude Parish (Waltham, Mass.). 40th anniversary Saint Jude Parish, Waltham-Watertown, November 2, 1989. [Waltham, Mass: St. Jude Parish, 1989.

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United States. Congress. House. Committee on Public Works and Transportation. Frederick C Murphy Federal Center: Report (to accompany H.R. 1206). [Washington, D.C.?: U.S. G.P.O., 1994.

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United States. Congress. House. Committee on Public Works and Transportation. Subcommittee on Public Buildings and Grounds. General Services Administration's Federal Buildings Fund and reorganization: Hearings before the Subcommittee on Public Buildings and Grounds of the Committee on Public Works and Transportation, House of Representatives, One Hundred Third Congress, second session, February 24 and March 22, 1994 : Edward J. Schwartz Courthouse ... (H.R. 3770); Byron White United States Courthouse ... (H.R. 3693); Frederick C. Murphy Federal Center ... (H.R. 2318). Washington: U.S. G.P.O., 1994.

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Castner, Elizabeth D. Tercentennial history of the first parish in Waltham, Massachusetts 1696-1996. First Parish in Waltham, 1998.

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Developing democratic socialism in America: October 18-19, 1986, Brandeis University, Waltham, Mass. [Milwaukee, Wis.]: Frank P. Zeidler, 1986.

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Boston (Mass. Environment Dept. Notice of decision/certificate of design approval, application #91-162: lally park; Waltham; union park street. 1990.

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R, M. Bradley and Co Inc. Rmb. 1990.

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US GOVERNMENT. General Services Administration's Federal Buildings Fund and reorganization: Hearings before the Subcommittee on Public Buildings and Grounds of the Committee ... C. Murphy Federal Center ... (H.R. 2318). For sale by the U.S. G.P.O., Supt. of Docs., Congressional Sales Office, 1994.

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Britain, Great. Barnet, Enfield, Cheshunt, Chingford, Waltham Abbey: Street A-Z Atlas (A-Z Street Maps & Atlases). Geographers' A-Z Map Company Ltd., 2005.

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Silva, Fabiano Marcos, and Renata de Castro Matias. Sinergias e singularidades na atuação do enfermeiro no contexto da reforma psiquiátrica: uma revisão de literatura. Editora Amplla, 2021. http://dx.doi.org/10.51859/amplla.ssa702-1121-0.

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Esta obra é dedicada a todos os meus familiares, com carinho especial à minha mãe Maria de Lourdes Fernandes, primeira enfermeira que me cuidou. Às minhas irmãs Mirella Fernandes Silva e Giselly Fernanda Silva Manso, que me incentivaram e nunca permitiram que desistisse. Ao meu pai José Raymundo da Silva, por sempre me instruir com sua conduta e honestidade invejável. À minha amada filha Vitória Fabiana Ferreira da Silva, minha primogênita, que mesmo na minha ausência sempre esteve no meu coração e nas minhas preces. Minha esposa, Izabel Cristina Virgínio, esteio da minha casa e rainha do meu lar. Às minhas finadas avós, Antônia de Andrade e Maria Olímpia de Jesus, que com sua simplicidade me ensinaram que a serenidade e fé são poderosas armas removedoras de montanhas. Aos meus avôs, José Bernardo da Silva (In Memorian) e Benedito Vilas Boas Fernandes (In Memorian), que em algum lugar em suas mentes octogenárias ainda enxergam o moleque arteiro e curioso. Ao amigo Walther Stevano, estrela que hoje brilha no céu junto aos seus compatriotas da Força Expedicionária Brasileira. Ao médico Psiquiatra Kléber Lincoln Gomes, pelas valiosas contribuições. A todos os amigos e profissionais Enfermeiros e Professores da Faculdade Wenceslau Braz. A todos os internos dos hospitais psiquiátricos do meu país, que vivem atormentados em seus pensamentos pelas mais sombrias perturbações, inimagináveis aos que se consideram psicologicamente sãos; À todas as vítimas do Complexo Hospitalar Psiquiátrico de Barbacena-MG, cenário da mais terrível tragédia humana em solo Brasileiro; Perdoem-nos; não sabíamos o que estávamos fazendo. Ao Médico dos médicos, Jesus Cristo, verdadeiro Deus e verdadeiro Homem.

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Conference papers on the topic "Waltham (Mass.)"

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Zhang, Guanghui, Shubo Yu, Zhansheng Liu, Kefan Xu, and Yu Li. "The Thermo-Hydrodynamic Analysis of the Plain Journal Bearing With Centered Circumferential Groove: Numerical Simulation vs. Experiment." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14364.

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Abstract In order to increase the reliability of the oil lubricated journal bearing, the thermal characteristics of the plain journal bearing are investigated and optimized. In this paper, the steady state thermo-hydrodynamic analysis of the plain journal bearing with centered circumferential groove is studied by numerical simulation and experiments. The diameter of the journal bearing is 190mm, and the load of the bearing is 6150N, which is operated with the rotating speed of 5560 r/min. The flow characteristics including the temperature distribution in the clearance of the bearing are simulated by ANSYS CFX, where the Walther viscosity temperature relation and the cavitation effect are considered. The test rig for measuring the pressure and temperature distributing in established, which is driven by electrical motor and certain bearing load can be exerted on it. In the experiments, the temperature distribution of the bearing is measured by 10 temperature sensors, which is arranged on three cross sections along the axial direction. The temperature of the lubricating oil is obtained by the sensors on the shell of the bearing, which is installed in the Babbitt metal. In order to obtain the circumferential distribution of the temperature, the sensors locate at different circumferential angles. The influence of geometrical parameters on the temperature distribution is studied, including the bearing clearance, the bearing length and the groove width by numerical simulation and experiment. The bearing clearance ratios of 1.8‰ and 2.5‰ are compared, and as the increment of the bearing clearance ratio, the temperature of the bearing decreased, which is benefit from the flow mass into the bearing increases. For the bearing length increasing from 90mm to 94mm, the maximum temperature decreases about 3K. For the groove width varying from 20mm to 19mm and 18mm, the temperature of the bearing decreases. The comparison of the numerical results and experiments are presented, and they show similar tendency for the temperature distribution, but the difference of temperature values exists. Based on the results from variation of bearing clearance ratio, bearing length and groove width, the optimized parameters of the bearing are proposed by determining the groove width with 18mm, bearing length with 94mm and the bearing clearance ratio with 2.1‰. The thermo-hydrodynamic analysis from the CFD and the experiments for the optimized bearing are carried out. The results indicate that the thermal performance of the bearing is improved. Compared with original design of the bearing, the maximum temperature is reduced by approximately 5K for optimized design of the bearing.

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