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1. Dissolution of potassium chloride as a test process for isothermal calorimeters operated in the milli-Watt range

Author:
Vikegard, Peter
Source:
Thermochimica acta 2021 v.695 pp. 178810
ISSN:
0040-6031
Subject:
normal values,   etc   ; adverse effects; calibration; calorimeters; enthalpy; heat flow; injection; liquids; literature; mixing; potassium chloride; water;     Show all 12 Subjects
Abstract:
... A test and calibration method for isothermal calorimeters equipped with a device for liquid injection and mixing is described. The procedure was developed with special reference to calorimeters operated with heat flow values in the milli-watt range. The investigated reaction was the dissolution of potassium chloride in water at 298 K in the concentration range 56–80 water molecules per KCl entity ...
DOI:
10.1016/j.tca.2020.178810

2. Evaluation of thermal optical analysis (TOA) using an aqueous binary mixture

Author:
Grimes, Courtney D.; Conny, Joseph M.; Dickerson, Russell R.
Source:
Atmospheric environment 2020 v.241 pp. 117647
ISSN:
1352-2310
Subject:
normal values,   etc   ; atmospheric chemistry; monitoring; organic carbon; temperature; uncertainty;     Show all 6 Subjects
Abstract:
... Thermal-Optical Analysis (TOA), a commonly implemented technique used to measure the amount of particulate carbon in the atmosphere or deposited on a filter substrate, distinguishes organic carbon (OC) from elemental carbon (EC) through the monitoring of laser light, heating, and measuring evolved carbon. Here, we present a method to characterize the TOA transmission method with an aqueous binary ...
DOI:
10.1016/j.atmosenv.2020.117647

3. The importance of sample size with regard to the robustness of postmortem reference values

Author:
Söderberg, C.; Tillmar, A.; Johansson, A.; Wernvik, E.; Jönsson, A.K.; Druid, H.
Source:
Forensic science international 2020 v.311 pp. 110292
ISSN:
0379-0738
Subject:
normal values,   etc   ; blood; drugs; necropsy; poisoning; sample size; toxicology;     Show all 7 Subjects
Abstract:
... Evaluating postmortem toxicological results is a challenging task due to multiple factors affecting blood concentrations after death. In order to improve the diagnostic accuracy in cases of suspected fatal intoxication different compilations of postmortem reference drug concentrations are often used. However, it is not clear what constitutes a reliable postmortem reference value.The current study ...
DOI:
10.1016/j.forsciint.2020.110292

4. Taking the Motion out of Floating Lidar: Turbulence Intensity Estimates with a Continuous-Wave Wind Lidar

Author:
Kelberlau, Felix; Neshaug, Vegar; Lønseth, Lasse; Bracchi, Tania; Mann, Jakob
Source:
Remote Sensing 2020 v.12 no.5
ISSN:
2072-4292
Subject:
normal values,   etc   ; algorithms; lidar; remote sensing; turbulent flow; wind;     Show all 6 Subjects
Abstract:
... Due to their motion, floating wind lidars overestimate turbulence intensity (T I) compared to fixed lidars. We show how the motion of a floating continuous-wave velocity–azimuth display (VAD) scanning lidar in all six degrees of freedom influences the T I estimates, and present a method to compensate for it. The approach presented here uses line-of-sight measurements of the lidar and high-frequenc ...
DOI:
10.3390/rs12050898

5. Terahertz Time of Flight Spectroscopy as a Coating Thickness Reference Method for Partial Least Squares Near Infrared Spectroscopy Models

Author:
Mohan, Shikhar; Odani, Noritaka; Hossain, Md. Nayeem; Feng, Hanzhou; Li, Yi; Kato, Eiji; Drennen, James K.; Anderson, Carl A.
Source:
Analytical chemistry 2020 v.92 no.5 pp. 3658-3665
ISSN:
1520-6882
Subject:
normal values,   etc   ; coatings; least squares; models; monitoring; near-infrared spectroscopy;     Show all 6 Subjects
Abstract:
... Near infrared spectroscopy (NIRS) is often used during the tablet coating process to assess coating thickness. As the coating process proceeds, the increase and decrease in NIRS signal from both the coating formulation and tablet core has been related to coating thickness. Partial least-squares models are often generated relating NIRS spectra to reference coating thickness measurements for in-line ...
DOI:
10.1021/acs.analchem.9b04750

6. Microstructural Effect Limitations in the Analysis of SnAg, SnBi and SnIn Lead-free Solders by Wavelength Dispersion X-Ray Spectrometry

Author:
Tadeusz Gorewoda,; Mzyk, Zofia; Anyszkiewicz, Jacek; Bilewska, Katarzyna; Cybulski, Andrzej; Gołębiewska-Kurzawska, Joanna; Knapik, Magdalena; Kostrzewa, Justyna; Grzegorczyk, Magdalena; Malara, Szymon
Source:
Journal of analytical chemistry 2020 v.75 no.1 pp. 56-62
ISSN:
1061-9348
Subject:
normal values,   etc   ; X-ray fluorescence spectroscopy; calibration; furnaces; microstructure; wavelengths;     Show all 6 Subjects
Abstract:
... This article describes the effects of microstructures in an analysis of lead-free solders, namely SnAg, SnBi and SnIn, using X-ray fluorescence spectrometry (XRF). The size of the microstructures in the samples and calibration materials has a strong impact on the calibration accuracy and results. A comparison of the microstructure size and critical thickness values demonstrated the importance of t ...
DOI:
10.1134/S1061934820010086

7. Effect of oral administration of docohexanoic acid on anemia and inflammation in hemodialysis patients: A randomized controlled clinical trial

Author:
Ruperto, Mar; Rodríguez-Mendiola, Nuria; Díaz-Domínguez, Martha; Giménez-Moyano, Sara; García-Bermejo, M. Laura; Fernández-Lucas, Milagros
Source:
Clinical nutrition ESPEN 2021 v.41 pp. 129-135
ISSN:
2405-4577
Subject:
normal values,   etc   ; C-reactive protein; administrative management; adverse effects; anemia; biomarkers; blood serum; clinical nutrition; erythropoietin; hemodialysis; hemoglobin; homocysteine; inflammation; laboratories; men; mortality; oral administration; patients; regression analysis;     Show all 19 Subjects
Abstract:
... Docohexanoic acid (DHA), a dietary n-3 polyunsaturated fatty-acid omega-3 (n-3, PUFA), showed potential beneficial effects in reducing all-cause mortality in hemodialysis (HD) patients. This randomized trial aimed to analyze whether DHA supplementation was a modulator of erythropoietin (EPO) response and inflammation in hemodialysis (HD) patients.In this controlled clinical trial, 52 HD patients w ...
DOI:
10.1016/j.clnesp.2020.12.004

8. Determination of carcinoembryonic antigen as a tumor marker using a novel graphene-based label-free electrochemical immunosensor

Author:
Jozghorbani, Maryam; Fathi, Mojtaba; Kazemi, Sayed Habib; Alinejadian, Navid
Source:
Analytical biochemistry 2021 v.613 pp. 114017
ISSN:
0003-2697
Subject:
normal values,   etc   ; antibodies; antigen-antibody complex; antigens; behavior; biochemistry; blood serum; detection; dielectric spectroscopy; electrochemistry; electrodes; enzyme-linked immunosorbent assay; graphene; graphene oxide; humans; immunosensors; neoplasms; screening; voltammetry;     Show all 19 Subjects
Abstract:
... In this work, a simple label-free electrochemical immunosensor for the detection of carcinoembryonic antigen (CEA) was developed. At first, the GC electrode was coated with partially reduced graphene oxide (rGO) to form a platform to bind the antibody. After activating the carboxyl groups of rGO through the EDC/NHS linker, the electrode surface was covered with the antibody. Then, the electrochemi ...
DOI:
10.1016/j.ab.2020.114017

9. Simultaneous quantification of steroid hormones and endocannabinoids (ECs) in human hair using an automated supported liquid extraction (SLE) and LC-MS/MS – Insights into EC baseline values and correlation to steroid concentrations

Author:
Voegel, Clarissa Daniela; Baumgartner, Markus R.; Kraemer, Thomas; Wüst, Stefan; Binz, Tina Maria
Source:
Talanta 2021 v.222 pp. 121499
ISSN:
0039-9140
Subject:
normal values,   etc   ; androstenedione; automation; cannabinoids; cleaning; cortisol; cortisone; females; hairs; humans; liquid chromatography; males; methanol; progesterone; solvents; steroid hormones; stress response; tandem mass spectrometry; testosterone; young adults;     Show all 20 Subjects
Abstract:
... Endogenous steroid hormones and endocannabinoids (ECs) are important regulators in the stress response of the human body. For the measurement of chronic stress, hair analysis has been established as method of choice for long-term and retrospective determination of endogenous stress markers. A sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of five ...
DOI:
10.1016/j.talanta.2020.121499

10. Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study

Author:
Langade, Deepak; Thakare, Vaishali; Kanchi, Subodh; Kelgane, Sunil
Source:
Journal of ethnopharmacology 2021 v.264 pp. 113276
ISSN:
0378-8741
Subject:
normal values,   etc   ; Withania somnifera; analysis of variance; anxiety; clinical examination; clinical trials; drug therapy; patients; placebos; questionnaires; root extracts; sleep; sleep disorders; traditional medicine; volunteers;     Show all 15 Subjects
Abstract:
... Ashwagandha (Withania somnifera (L.) Dunal.) is long known for its sleep-inducing effects. Ashwagandha can be proposed as an alternative to the recommended present treatments for insomnia. This study aimed to evaluate the pharmacological effect of Ashwagandha root extract on sleep in healthy subjects and also in the subjects having insomnia.We performed a randomized, parallel-group, stratified des ...
DOI:
10.1016/j.jep.2020.113276

11. Assessment of some governance aspects in waste management systems: A case study in Mexican municipalities

Author:
Turcott Cervantes, Dolores Elizabeth; Romero, Elvira Olay; del Consuelo Hernández Berriel, María; Martínez, Ana López; del Consuelo Mañón Salas, María; Lobo, Amaya
Source:
Journal of cleaner production 2021 v.278 pp. 123320
ISSN:
0959-6526
Subject:
normal values,   etc   ; case studies; decision making; developing countries; governance; issues and policy; laws and regulations; management systems; municipal solid waste; uncertainty; waste management;     Show all 11 Subjects
Abstract:
... Many municipalities, particularly in developing countries, have a lack of information to guide decision-making to improve municipal solid waste management (MSWM). They need tools that systematize the collection and analysis of data, and then assess all aspects of the system, including both technical and non-technical ones. This work presents a field study covering 66 Mexican municipalities. A new ...
DOI:
10.1016/j.jclepro.2020.123320

12. InSAR Multitemporal Data over Persistent Scatterers to Detect Floodwater in Urban Areas: A Case Study in Beletweyne, Somalia

Author:
Pulvirenti, Luca; Chini, Marco; Pierdicca, Nazzareno
Source:
Remote Sensing 2020 v.13 no.1
ISSN:
2072-4292
Subject:
normal values,   etc   ; algorithms; calibration; case studies; floods; interferometry; remote sensing; suburban areas; urban areas; Somalia;     Show all 10 Subjects
Abstract:
... A stack of Sentinel-1 InSAR data in an urban area where flood events recurrently occur, namely Beletweyne town in Somalia, has been analyzed. From this analysis, a novel method to deal with the problem of flood mapping in urban areas has been derived. The approach assumes the availability of a map of persistent scatterers (PSs) inside the urban settlement and is based on the analysis of the tempor ...
DOI:
10.3390/rs13010037

13. Comparability of heavy mineral data – The first interlaboratory round robin test

Author:
Dunkl, István; von Eynatten, Hilmar; Andò, Sergio; Lünsdorf, Keno; Morton, Andrew; Alexander, Bruce; Aradi, László; Augustsson, Carita; Bahlburg, Heinrich; Barbarano, Marta; Benedictus, Aukje; Berndt, Jasper; Bitz, Irene; Boekhout, Flora; Breitfeld, Tim; Cascalho, João; Costa, Pedro J.M.; Ekwenye, Ogechi; Fehér, Kristóf; Flores-Aqueveque, Valentina; Führing, Philipp; Giannini, Paulo; Goetz, Walter; Guedes, Carlos; Gyurica, György; Hennig-Breitfeld, Juliane; Hülscher, Julian; Jafarzadeh, Mahdi; Jagodziński, Robert; Józsa, Sándor; Kelemen, Péter; Keulen, Nynke; Kovacic, Marijan; Liebermann, Christof; Limonta, Mara; Lužar-Oberiter, Borna; Markovic, Frane; Melcher, Frank; Miklós, Dóra Georgina; Moghalu, Ogechukwu; Mounteney, Ian; Nascimento, Daniel; Novaković, Tea; Obbágy, Gabriella; Oehlke, Mathias; Omma, Jenny; Onuk, Peter; Passchier, Sandra; Pfaff, Katharina; Lincoñir, Luisa Pinto; Power, Matthew; Razum, Ivan; Resentini, Alberto; Sági, Tamás; Salata, Dorota; Salgueiro, Rute; Schönig, Jan; Sitnikova, Maria; Sternal, Beata; Szakmány, György; Szokaluk, Monika; Thamó-Bozsó, Edit; Tóth, Ágoston; Tremblay, Jonathan; Verhaegen, Jasper; Villaseñor, Tania; Wagreich, Michael; Wolf, Anna; Yoshida, Kohki
Source:
Earth-science reviews 2020 v.211 pp. 103210
ISSN:
0012-8252
Subject:
normal values,   etc   ; algorithms; automation; chemical analysis; metadata; mineral resources; minerals; rocks; sediments; silicates; uncertainty;     Show all 11 Subjects
Abstract:
... Heavy minerals are typically rare but important components of siliciclastic sediments and rocks. Their abundance, proportions, and variability carry valuable information on source rocks, climatic, environmental and transport conditions between source to sink, and diagenetic processes. They are important for practical purposes such as prospecting for mineral resources or the correlation and interpr ...
DOI:
10.1016/j.earscirev.2020.103210

14. Improved Zenith Tropospheric Delay Modeling Using the Piecewise Model of Atmospheric Refractivity

Author:
Yang, Liu; Gao, Jingxiang; Zhu, Dantong; Zheng, Nanshan; Li, Zengke
Source:
Remote Sensing 2020 v.12 no.23
ISSN:
2072-4292
Subject:
normal values,   etc   ; accuracy; compliance; global positioning systems; latitude; longitude; models; remote sensing; troposphere; weather forecasting; China;     Show all 11 Subjects
Abstract:
... As one of the atmosphere propagation delays, the tropospheric delay is a significant error source that should be properly handled in high-precision global navigation satellite system (GNSS) applications. We propose an improved zenith tropospheric delay (ZTD) modeling method whereby the piecewise model of the atmospheric refractivity is introduced. Compared with using the exponential model to fit Z ...
DOI:
10.3390/rs12233876

15. Reference Values for Handgrip Strength in the Basque Country Elderly Population

Author:
Río, Xabier; Larrinaga-Undabarrena, Arkaitz; Coca, Aitor; Guerra-Balic, Myriam
Source:
Biology 2020 v.9 no.12
ISSN:
2079-7737
Subject:
normal values,   etc   ; age; decline; deterioration; elderly; health promotion; men; muscle tissues; population; strength training; therapeutics; women;     Show all 12 Subjects
Abstract:
... Strength training is currently the most recommended primary therapeutic strategy to prevent and reverse the decline of muscle mass, strength, and functional deterioration associated with age. The aim is to provide reference values of handgrip strength (HGS) in the Basque Country population and compare the values with other populations. A total of 1869 subjects from the health-promoting programme f ...
DOI:
10.3390/biology9120414

16. Transport of polymers in contact lenses and impact on lubricity

Author:
Yu, Yifan; Guerriero, Timothy; Carpenter, James; Chauhan, Anuj
Source:
Colloids and surfaces 2020 v.603 pp. 125123
ISSN:
0927-7757
Subject:
normal values,   etc   ; carboxymethylcellulose; lubricants; molecular weight; phosphates; polyvinyl alcohol; soaking; ultraviolet-visible spectroscopy;     Show all 8 Subjects
Abstract:
... Contact lens induced discomfort (CLD) has been recognized as the most common cause of contact lens wearer drop-out over the past four decades. Many studies show correlation between comfort and lubricity, which can be increased by incorporation of lubricating polymers in lenses to serve as comfort agents. The objective of this study is to measure the effect of two different comfort-agent incorporat ...
DOI:
10.1016/j.colsurfa.2020.125123

17. Evaluation of bias correction methods for APHRODITE data to improve hydrologic simulation in a large Himalayan basin

Author:
Ji, Xuan; Li, Yungang; Luo, Xian; He, Daming; Guo, Ruoyu; Wang, Jing; Bai, Yang; Yue, Caiyun; Liu, Chang
Source:
Atmospheric research 2020 v.242 pp. 104964
ISSN:
0169-8095
Subject:
normal values,   etc   ; basins; climatic zones; floodplains; loci; rain gauges; runoff; satellites; watersheds; China;     Show all 10 Subjects
Abstract:
... Gridded precipitation products have the advantages of wide spatial coverage and high spatiotemporal resolution compared to conventional rain-gauge data, and have been extensively applied in hydrology-related research. As one of the most representative of the gridded precipitation products, APHRODITE performs well in most regions over Asia except around the Tibetan Plateau. This study implemented f ...
DOI:
10.1016/j.atmosres.2020.104964

18. Determination of Larval Instars of Semanotus bifasciatus (Coleoptera: Cerambycidae) Based on Frequency Distributions of Morphological Variables

Author:
Li, Na; Wu, Lei; Geng, Yongxin; Wei, Danfeng; Chen, Min
Source:
Journal of entomological science 2020 v.55 no.3 pp. 405-415
ISSN:
0749-8004
Subject:
normal values,   etc   ; Platycladus; Semanotus; body length; frequency distribution; head; insect larvae; instars; pests; trees; China;     Show all 11 Subjects
Abstract:
... Semanotus bifasciatus Motschulsky (Coleoptera: Cerambycidae) is one of the most destructive pests of Platycladus trees in China. Morphological measurements, such as head capsule (HC) width, can be very useful and practical indicators for identifying larval instars of coleopteran species. In this study, six morphological variables, including HC width, pronotum width, mandible length and width, and ...
DOI:
10.18474/0749-8004-55.3.405

19. Arsenic in marine sediments: how robust a redox proxy?

Author:
Tribovillard, Nicolas
Source:
Palaeogeography, palaeoclimatology, palaeoecology 2020 v.550 pp. 109745
ISSN:
0031-0182
Subject:
normal values,   etc   ; arsenic; cold; hydrogen sulfide; iron; marine sediments; molybdenum; organic matter; paleoecology; shale; uranium;     Show all 11 Subjects
Abstract:
... Arsenic (As) is reputed to be a redox-sensitive element but has not been fully explored yet as a proxy in marine sediments and sedimentary rocks, compared to extensively examined elements such as molybdenum (Mo) and uranium (U). Here the behavior of As is compared to that of Mo and U in a number of paleo-environmental situations that have been studied before and are, therefore, rather well constra ...
DOI:
10.1016/j.palaeo.2020.109745

20. Direct measurement of Cu and Pb isotopic ratios without column chemistry for bronze materials using MC-ICP-MS

Author:
Bao, Zhian; Zong, Chunlei; Liang, Peng; Zhang, Yan; Chen, Kaiyun; Yuan, Honglin
Source:
Analytical methods 2020 v.12 no.20 pp. 2599-2607
ISSN:
1759-9679
Subject:
normal values,   etc   ; acidity; analytical methods; copper; isotope labeling; isotopes; lead; quality control; thallium;     Show all 9 Subjects
Abstract:
... This study presents a practical method for high-precision Cu and Pb isotope determination without column chemistry for bronze materials using MC-ICP-MS. The standard-sample bracketing method combined with Ga internal normalization (SSBIN) was used to correct the instrumental mass bias during Cu isotopic analysis. The effects of acidity mismatch, concentration mismatch, and matrix effect were rigor ...
DOI:
10.1039/d0ay00561d