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https://www.readbyqxmd.com/read/28343229/cytological-findings-of-ascitic-fluid-with-a-malignant-ovarian-steroid-cell-tumor-a-case-report-and-literature-review
#1
Nobuaki Kosaka, Kiyoshi Hasegawa, Kaori Kiuchi, Shoko Ochiai, Tamiko Nagai, Hiromi Machida, Yasuo Imai, Ichio Fukasawa
BACKGROUND: Ovarian steroid cell tumors (SCTs) are rare and usually benign, although 25-43% are reportedly malignant. The cytologic findings of these rare ovarian tumors have almost never been reported. CASE: We report a rare case of a malignant ovarian SCT with peritoneal dissemination and malignant ascites in a 40-year-old woman. Her tumor was classified as stage IIB (pT2bNoM0) according to the FIGO (International Federation of Gynecology and Obstetrics) classification system, and she was treated with adjuvant chemotherapy following staging laparotomy...
March 25, 2017: Acta Cytologica
https://www.readbyqxmd.com/read/28335461/design-and-validation-of-a-low-cost-portable-device-to-quantify-postural-stability
#2
Yong Zhu
Measurement of the displacement of the center-of-pressure (COP) is an important tool used in biomechanics to assess postural stability and human balance. The goal of this research was to design and validate a low-cost portable device that can offer a quick indication of the state of postural stability and human balance related conditions. Approximate entropy (ApEn) values reflecting the amount of irregularity hiding in COP oscillations were used to calculate the index. The prototype adopted a portable design using the measurements of the load cells located at the four corners of a low-cost force platform...
March 18, 2017: Sensors
https://www.readbyqxmd.com/read/28334646/defluoridation-of-drinking-water-using-a-new-flow-column-electrocoagulation-reactor-fcer-experimental-statistical-and-economic-approach
#3
Khalid S Hashim, Andy Shaw, Rafid Al Khaddar, Montserrat Ortoneda Pedrola, David Phipps
A new batch, flow column electrocoagulation reactor (FCER) that utilises a perforated plate flow column as a mixer has been used to remove fluoride from drinking water. A comprehensive study has been carried out to assess its performance. The efficiency of fluoride removal (R%) as a function of key operational parameters such as initial pH, detention time (t), current density (CD), inter-electrode distance (ID) and initial concentration (C0) has been examined and an empirical model has been developed. A scanning electron microscopy (SEM) investigation of the influence of the EC process on morphology of the surface of the aluminium electrodes, showed the erosion caused by aluminium loss...
March 20, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28318414/the-prevalence-of-self-reported-premenstrual-symptoms-and-evaluation-of-regular-exercise-with-premenstrual-symptoms-among-female-employees-in-taiwan
#4
Su-Ying Tsai, Fu-Chen Kuo, Hsin-Chih Kuo, Li-Ling Liao
Few studies have focused on premenstrual symptoms in employees. This study explored the prevalence of premenstrual symptoms in 7,193 female employees aged 18-55 years in a large electronics manufacturer in Taiwan from August 2014 to December 2014 and examined whether regular exercise was associated with premenstrual symptoms. Information was collected on demographics, lifestyle, menstrual history, menstrual pain, and premenstrual symptoms. Half of the participants reported irregular menstruation; 79.4% reported a moderate menstruation amount, and half reported little impact of menstrual pain at work...
March 20, 2017: Women & Health
https://www.readbyqxmd.com/read/28287728/characterization-of-biomolecular-helices-and-their-complementarity-using-geometric-analysis
#5
Kevin Hauser, Yiqing He, Miguel Garcia-Diaz, Carlos Simmerling, Evangelos A Coutsias
A general method is presented to characterize the helical properties of potentially irregular helices, such as those found in protein secondary and tertiary structures, and nucleic acids. The method was validated using artificial helices with varying numbers of points, points per helical turn, pitch and radius. The sensitivity of the method was validated by applying increasing amounts of random perturbation to the coordinates of these helices; 399,360 helices in total were evaluated. In addition, the helical parameters of protein secondary structure elements and nucleic acid helices were analyzed...
March 13, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28254297/a-novel-chitosan-hydrogel-membrane-by-an-improved-electrophoretic-deposition-and-its-characteristics-in-vitro-and-in-vivo
#6
Wen-Wen Li, Hai-Yan Wang, Yu-Qing Zhang
Here, we report a novel chitosan hydrogel membrane (CHM) created by an improved electrophoretic deposition. Unlike a traditional CHM by electrophoretic deposition, the CHM was formed on a nanoporous film as a barrier using a homemade device at a high DC voltage (60 VDC). The CHM maximum recovery of 81.7% could be achieved after 1h of electrophoretic deposition. The transparent CHM with an elongation of 42.46% and swelling index of 538.86% was a mixture of type I and type II crystal structures. SEM revealed that the CHM had an irregular net structure...
May 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28241535/speckle-reduction-in-laser-projection-using-microlens-array-screens
#7
Jaël Pauwels, Guy Verschaffelt
We report on a novel speckle reduction scheme using microlens arrays as screen material for application in laser-based projection systems. The scheme is based on properly adjusting the coherence properties on the screen: when the coherence area on the microlens-array screen is smaller than the microlens footprint, there is no interference between the fields emitted by the different microlenses and as a result no speckle is formed. We measured and modelled the speckle properties of microlens arrays with regular and irregular structure and lens sizes, and also a paper screen for comparison...
February 20, 2017: Optics Express
https://www.readbyqxmd.com/read/28223552/ca-mg-zn-co3-and-ca-mg-co3-tri-and-bi-elemental-carbonate-microparticles-for-novel-injectable-self-gelling-hydrogel-microparticle-composites-for-tissue-regeneration
#8
Timothy E L Douglas, Katarzyna Sobczyk, Agata Lapa, Katarzyna Wlodarczyk, Gilles Brackman, Irina Vidiasheva, Katarzyna Reczyńska, Krzysztof Pietryga, David Schaubroeck, Vitaliy Bliznuk, Pascal Van der Voort, Heidi Declercq, Jan Van den Bulcke, Sangram Samal, Dmitry Khalenkow, Bogdan Parakhonskiy, Joris Van Acker, Tom Coenye, Malgorzata Lewandowska-Szumiel, Elzbieta Pamula, Andre Skirtach
Injectable composites for tissue regeneration can be developed by dispersion of inorganic microparticles and cells in a hydrogel phase. In this study, multifunctional carbonate microparticles containing different amounts of calcium, magnesium and zinc were mixed with solutions of gellan gum (GG), an anionic polysaccharide, to form injectable hydrogel-microparticle composites, containing Zn, Ca and Mg. Zn and Ca were incorporated into microparticle preparations to a greater extent than Mg. Microparticle groups were heterogeneous and contained microparticles of differing shape and elemental composition...
February 22, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28191698/short-and-long-term-complications-and-the-impact-on-quality-of-life-after-cervical-conization-by-harmonic-scalpel
#9
Megumi Furugori, Mikiko Asai-Sato, Kayoko Katayama, Fumiki Hirahara, Etsuko Miyagi
AIM: The incidence of non-obstetrical complications after cervical conization is low, and women receive minimal postsurgical attention. In this study, we investigated whether women felt any discomfort after undergoing conization by harmonic scalpel, one of the hot-knife devices widely used in Japan. METHODS: Eighty-eight women aged 20-47 years who were still experiencing menstrual cycles and had undergone harmonic conization participated in a questionnaire survey regarding perisurgical complications and postsurgical changes in gynecological issues...
February 13, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28180226/facile-fabrication-of-sudan-red-particle-microcapsules-by-a-polymerizable-gemini-surfactant-and-molecular-assembly-mechanisms
#10
Yaqian Wu, Haike Yan, Xuefeng Shi, Jinben Wang
An efficient method was developed to encapsulate water insoluble organic particles of Sudan red III (SR) in aqueous suspensions by using a polymerizable cationic gemini surfactant, 1,3-bis(N,N-dimethyl-N-cetylammonium)-2-(propylacrylate dibromide) (AGC16). The AGC16 coated SR microcapsules (AGC16@SR) were prepared by absorption of AGC16 on the surface of SR, followed by in situ homopolymerization (PAGC16). Several measurements, including transmission and scanning electron microscopy, isothermal titration calorimetry, zeta potential, electron paramagnetic resonance and small angle X-ray scattering, were performed to determine the adsorption amount of AGC16, and the layer structures and the molecular assembly mechanism in the AGC16@SR and PAGC16@SR systems, respectively...
February 9, 2017: Soft Matter
https://www.readbyqxmd.com/read/28178220/a-signal-processing-approach-with-a-smooth-empirical-mode-decomposition-to-reveal-hidden-trace-of-corrosion-in-highly-contaminated-guided-wave-signals-for-concrete-covered-pipes
#11
Javad Rostami, Jingming Chen, Peter W Tse
Ultrasonic guided waves have been extensively applied for non-destructive testing of plate-like structures particularly pipes in past two decades. In this regard, if a structure has a simple geometry, obtained guided waves' signals are easy to explain. However, any small degree of complexity in the geometry such as contacting with other materials may cause an extra amount of complication in the interpretation of guided wave signals. The problem deepens if defects have irregular shapes such as natural corrosion...
February 7, 2017: Sensors
https://www.readbyqxmd.com/read/28176614/acanthomatous-ameloblastoma-with-atypical-foci-in-five-dogs
#12
Jennifer L Malmberg, Elizabeth W Howerth, Barb E Powers, Paula A Schaffer
Acanthomatous ameloblastoma is a common, locally invasive, nonmetastasizing tumor of the canine oral cavity. The long-term prognosis for canine acanthomatous ameloblastoma is good if complete excision can be achieved, usually by maxillectomy or mandibulectomy. A variant of acanthomatous ameloblastoma with atypical foci was noted in 5 dogs. There was no age, breed, or sex predisposition. Atypical cells were pleomorphic with a high mitotic rate. They were immunohistochemically negative for cytokeratin, vimentin, melan A, PNL2, CD3, Pax5, CD18, chromogranin A, and synaptophysin...
January 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28169261/comparative-evaluation-of-tooth-substance-loss-and-its-correlation-with-the-abrasivity-and-chemical-composition-of-different-dentifrices
#13
Ram Prakash Singh, Sidhartha Sharma, Ajay Logani, Naseem Shah, Surendra Singh
CONTEXT: In India, teeth cleaning with tooth powder is common in rural and semi-urban areas. These dentifrices may contain low-quality abrasives, which may have a deleterious effect on dental hard tissues. AIMS: This study aims to evaluate the tooth substance loss caused by different dentifrices and to correlate it with chemical composition, size, and shape of abrasives used. SETTINGS AND DESIGN: An indigenously made automated machine was used for brushing the specimens...
November 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/28161991/stabilizing-ability-of-surfactant-on-physicochemical-properties-of-drug-nanoparticles-generated-from-solid-dispersions
#14
Thanu Thongnopkoon, Satit Puttipipatkhachorn
This study was aimed to examine the nanoparticle formation from redispersion of binary and ternary solid dispersions. Binary systems composed of various ratios of glibenclamide (GBM) and polyvinylpyrrolidone K30 (PVP-K30), whereas a constant amount at 2.5%w/w of a surfactant, sodium lauryl sulfate (SLS) or Gelucire44/14 (GLC), was added to create ternary systems. GBM nanoparticles were collected after the systems were dispersed in water for 15 minutes. The obtained nanoparticles were characterized for size distribution, crystallinity, thermal behavior, molecular structure, and dissolution properties...
February 6, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/28158927/analysis-of-the-roles-of-dietary-protein-and-calcium-in-fluoride-induced-changes-in-t-lymphocyte-subsets-in-rat
#15
Hongwei Wang, Bianhua Zhou, Ruiyan Niu, Jinming Wang, Jianhai Zhang, Jundong Wang
The roles of dietary protein (Pr) and calcium (Ca) levels on the changes in T-lymphocyte subsets induced by excessive fluoride (F) intake were assessed using rats that were malnourished for 120 days as a model. The CD(4+) and CD(8+) T-lymphocytes in the spleen tissue were determined by flow cytometry and immunofluorescence assay. The percentages of CD(3+) , CD(4+) , and CD(8+) T-lymphocytes were reduced in the spleen of rats exposed to excessive F, and malnutrition aggravated these changes in the T-lymphocytes...
February 3, 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/28138409/the-standards-of-an-ultrasound-examination-of-the-prostate-gland-part-1
#16
REVIEW
Janusz F Tyloch, Andrzej Paweł Wieczorek
The article discusses the principles of the proper performance of the ultrasound examination of the prostate gland. The paper has been divided into two parts: the general one and the detailed one. The first part presents the necessary requirements referring to the ultrasound apparatus for performing transabdominal examinations of the urinary bladder and the prostate gland as well as for transrectal examinations of the prostate gland. The paper also describes the techniques of performing both examinations together with the methods of measuring the capacity of the urinary bladder and the volume of the prostate gland...
December 2016: Journal of Ultrasonography
https://www.readbyqxmd.com/read/28107034/automated-measurement-of-magnesium-calcium-ratios-in-gastropod-shells-using-laser-induced-breakdown-spectroscopy-for-paleoclimatic-applications
#17
Adolfo Cobo, Asier García-Escárzaga, Igor Gutiérrez-Zugasti, Jesús Setién, Manuel R González-Morales, José Miguel López-Higuera
The chemical composition of mollusk shells offers information about environmental conditions present during the lifespan of the organism. Shells found in geological deposits and in many archeological sites can help to reconstruct past climatic conditions. For example, a correlation has been found between seawater temperature and the amount of some substituent elements (e.g., magnesium, strontium) in the biogenerated calcium carbonate matrix of the shell, although it is very species-specific. Here we propose the use laser-induced breakdown spectroscopy (LIBS) to estimate Mg/Ca ratios in modern specimens of the common limpet Patella vulgata...
January 1, 2017: Applied Spectroscopy
https://www.readbyqxmd.com/read/28101433/use-of-sonic-tomography-to-detect-and-quantify-wood-decay-in-living-trees
#18
Gregory S Gilbert, Javier O Ballesteros, Cesar A Barrios-Rodriguez, Ernesto F Bonadies, Marjorie L Cedeño-Sánchez, Nohely J Fossatti-Caballero, Mariam M Trejos-Rodríguez, José Moises Pérez-Suñiga, Katharine S Holub-Young, Laura A W Henn, Jennifer B Thompson, Cesar G García-López, Amanda C Romo, Daniel C Johnston, Pablo P Barrick, Fulvia A Jordan, Shiran Hershcovich, Natalie Russo, Juan David Sánchez, Juan Pablo Fábrega, Raleigh Lumpkin, Hunter A McWilliams, Kathleen N Chester, Alana C Burgos, E Beatriz Wong, Jonathan H Diab, Sonia A Renteria, Jennifer T Harrower, Douglas A Hooton, Travis C Glenn, Brant C Faircloth, Stephen P Hubbell
PREMISE OF THE STUDY: Field methodology and image analysis protocols using acoustic tomography were developed and evaluated as a tool to estimate the amount of internal decay and damage of living trees, with special attention to tropical rainforest trees with irregular trunk shapes. METHODS AND RESULTS: Living trunks of a diversity of tree species in tropical rainforests in the Republic of Panama were scanned using an Argus Electronic PiCUS 3 Sonic Tomograph and evaluated for the amount and patterns of internal decay...
December 2016: Applications in Plant Sciences
https://www.readbyqxmd.com/read/28096004/the-effect-of-standard-pain-assessment-on-pain-and-analgesic-consumption-amount-in-patients-undergoing-arthroscopic-shoulder-surgery
#19
Sevilay Erden, Sevil Güler Demir, Ulunay Kanatlı, Fatma Danacı, Banu Carboğa
Pain assessment has a key role in relief of the postoperative pain. In this study, we aimed to examine the effect of the Standard Pain Assessment Protocol (SPAP), which we developed based on acute pain guidelines, on pain level, and analgesic consumption. The study population consisted of a total of 101 patients who had arthroscopic shoulder surgery. The routine pain assessment was administered to the control group, while the SPAP was administered to the study group. The routine pain therapy of the clinic was administered to the subjects from both groups based on the pain assessment...
February 2017: Applied Nursing Research: ANR
https://www.readbyqxmd.com/read/28069670/the-acyl-desaturase-cer17-is-involved-in-producing-wax-unsaturated-primary-alcohols-and-cutin-monomers
#20
Xianpeng Yang, Huayan Zhao, Dylan K Kosma, Pernell Tomasi, John M Dyer, Rongjun Li, Xiulin Liu, Zhouya Wang, Eugene P Parsons, Matthew A Jenks, Shiyou Lü
We report n-6 monounsaturated primary alcohols (C26:1, C28:1, and C30:1 homologs) in the cuticular waxes of Arabidopsis (Arabidopsis thaliana) inflorescence stem, a class of wax not previously reported in Arabidopsis. The Arabidopsis cer17 mutant was completely deficient in these monounsaturated alcohols, and CER17 was found to encode a predicted ACYL-COENZYME A DESATURASE LIKE4 (ADS4). Studies of the Arabidopsis cer4 mutant and yeast variously expressing CER4 (a predicted fatty acyl-CoA reductase) with CER17/ADS4, demonstrated CER4's principal role in synthesis of these monounsaturated alcohols...
February 2017: Plant Physiology
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