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https://www.readbyqxmd.com/read/29457396/-ultrasonic-analysis-on-the-effect-of-strengthening-exercise-with-strong-tendon-on-lumbosacral-multifidus-muscles
#1
Ling-San Hu, Wei-An Yuan, Wei-Ye Chen, Zhi-Ling Gao, Hong-Sheng Zhan
OBJECTIVE: To study effects of strengthening exercise with strong tendon on the lumbosacral multifidus muscle. METHODS: Among 30 healthy volunteers, there were 21 males and 9 females, with an average age of(31.30±6.48) years old(ranged, 25 to 55 years old). The mean BMI was (21.70±1.95) kg/m²(ranged, 18.1 to 24.9 kg/m²). The ultrasonic image was used to analyze the thickness of lumbosacral multifidus(LM) under the follow conditions: supine position, and supine position with leg lifting 30°, 60°, 90°; seat and hip flexion, flexion to limit position, front to limit position with both hands climbing and strengthening the kidneys and the waist...
November 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29456893/the-effect-of-supragingival-glycine-air-polishing-on-periodontitis-during-maintenance-therapy-a-randomized-controlled-trial
#2
Hongye Lu, Lu He, Yibing Zhao, Huanxin Meng
Background: Glycine air polishing has been proved to be safe, comfortable and time-saving. Whether it could substitute ultrasonic scaling to remove dental plaque biofilm during periodontal maintenance remains unclear. The purposes of this study were to evaluate the effect of supragingival glycine air polishing (SGAP) on the subgingival periodontal pathogens during maintenance therapy and to check the association of periodontal pathogens and clinical parameters. Methods: Twenty-three chronic periodontitis patients during their maintenance therapy were enrolled in the 12-week study...
2018: PeerJ
https://www.readbyqxmd.com/read/29456777/toe-gap-force-is-related-to-ultrasonic-parameter-of-calcaneus-bone-status-in-general-population
#3
Tsuyoshi Tajika, Atsushi Yamamoto, Noboru Oya, Takanori Kitagawa, Hiroki Kobayashi, Hitoshi Shitara, Haku Iizuka, Kenji Takagishi, Hirotaka Chikuda
Background: Elucidating the relation between bone health condition and muscle strength can provide useful knowledge for Japan's super-aged society. This study ascertained the Speed Of Sound (SOS) of the calcaneus and upper and lower limb muscle strength in a general population. Methods: Medical examinations were conducted of 277 adult residents (100 men, 177 women; average age 67.1 years) of a mountain village. Bilateral hand grip and hand key pinch strength were measured...
2018: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/29456640/comparative-study-of-ultrasonic-elastography-and-conventional-ultrasound-in-diagnosis-of-malignant-anus-neoplasm
#4
Yicheng Zhu, Shuhao Deng, Yuan Zhang, Quan Jiang
The application value of conventional ultrasound and ultrasonic elastography (UE) in preoperative diagnosis and combined diagnosis of malignant anus neoplasms was investigated. One hundred and twenty patients, whose mass was detected by digital rectal examination, were examined using UE and conventional ultrasound before operation, and the results were compared with those of histopathological examinations after operation, so that the accuracy and imaging features of UE as well as UE combined with conventional ultrasound in diagnosing malignant anus neoplasm were analyzed...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29455498/-radiologic-observation-of-the-blood-supply-changes-around-the-knee-with-osteoarthritis
#5
Jin-Song Liu, Zhi-Yao Li
OBJECTIVE: To compare blood supply changes around the knee joint between normal and osteoarthritis knee. METHODS: From June 2014 to June 2015, 30 patients with knee osteoarthritis and 30 healthy adults were recruited. In osteoarthritis group, there were 9 males and 21 females, with a mean age of (65.967±7.132) years old(ranged, 53 to 82 years old), and the mean arterial pressure was(93.462±7.633) mmHg. In control group, there were 9 males and 21 females, with a mean age of (62...
August 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29455283/utilizing-hyaluronic-acid-as-a-versatile-platform-for-fluorescence-resonance-energy-transfer-based-glucose-sensing
#6
Minghao Ge, Pengli Bai, Mingli Chen, Jingjing Tian, Jun Hu, Xu Zhi, Huancai Yin, Jian Yin
Here, we utilized the ultrasonic emulsification technique to generate hyaluronic acid microspheres incorporating a fluorescence-based glucose biosensor. We synthesized a novel lanthanide ion luminophore based on Eu3+ . Eu sulfosuccinimidyl dextran (Eu-dextran) and Alexa Fluor 647 sulfosuccinimidyl-ConA (Alexa Fluor 647-ConA) were encapsulated in hyaluronic acid hydrogel to generate microspheres. Glucose sensing was carried out using a fluorescence resonance energy transfer (FRET)-based assay principle. A proportional fluorescence intensity increase was found within a 0...
February 17, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29451124/copper-oxide-loaded-plga-nanospheres-towards-a-multifunctional-nanoscale-platform-for-ultrasound-based-imaging-and-therapy
#7
Or Perlman, Iris S Weitz, Sarit Sivan, Hiba Abu-Khalla, Madeleine Benguigui, Yuval Shaked, Haim Azhari
Copper oxide nanoparticles (CuO-NPs) are increasingly investigated for diagnostic and therapeutic purposes. Recent work have demonstrated their anticancer potential as well as contrast agent capabilities for magnetic resonance imaging (MRI) and through-transmission ultrasound. However, no capabilities of CuO-NPS were demonstrated using conventional ultrasound systems, which, unlike the formers, are widely deployed in the clinic. Furthermore, in spite of their potential as multifunctional nano-based materials for diagnosis and therapy, CuO-NPs were delayed from further clinical translation due to their inherent toxicity...
February 16, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29450440/injection-molded-lab-on-a-disc-platform-for-screening-of-genetically-modified-e-coli-using-liquid-liquid-extraction-and-surface-enhanced-raman-scattering
#8
Lidia Morelli, Laura Serioli, Francesca Alessandra Centorbi, Christian Bille Jendresen, Marco Matteucci, Oleksii Ilchenko, Danilo Demarchi, Alex Toftgaard Nielsen, Kinga Zór, Anja Boisen
We present the development of an automated centrifugal microfluidic platform with integrated sample pre-treatment (filtration and liquid-liquid extraction) and detection (SERS-based sensing). The platform consists of eight calibration and four assay modules, fabricated with polypropylene using injection molding and bonded with ultrasonic welding. The platform was used for detection of a secondary bacterial metabolite (p-coumaric acid) from bacterial supernatant. The obtained extraction efficiency was comparable to values obtained in batch experiments and the SERS-based sensing showed a good correlation with HPLC analysis...
February 16, 2018: Lab on a Chip
https://www.readbyqxmd.com/read/29448674/preparation-and-performance-of-porous-polymer-electrolytes-doped-with-nano-al%C3%A2-o%C3%A2
#9
Qingbai Jiang, Bo Liang, Siqi Tang, Xu Chen
Porous polymer electrolytes (PPEs) doped with nano-Al2O3 were prepared by a joint application of ultrasonic treatment and control evaporation in vacuum oven. The morphology, pore size distribution, thermal, electrochemical and mechanical properties of the PPEs were investigated. The porosity distribution of PPEs was uniform and their pore size was relatively modest. The total resistance (Rt) of PPEs with 10% Al2O3 is only 9 Ω at 80 °C. The maximum tensile strength of the PPEs membranes reached to 24.43 MPa...
March 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448541/preparation-of-polyurethane-acrylate-coated-carbon-nanotube-nanocomposites-by-emulsion-polymerization
#10
Jila Talat, Mohammad Sabzi, Behrouz Safibonab, Iraj Hasanzadeh, Ali Arman, Isa Karimzadeh
The aim of this work was to prepare strong and conductive polyurethane acrylate nanocomposites. First, urethane prepolymers with different molecular weights and hydrophilicities were synthetized. Then, their corresponding polyurethane acrylate nanocomposites were prepared by ultrasonically-assisted emulsion polymerization in the presence of various ratios of urethane prepolymers and acrylate monomers. Thermogravimetric analysis (TGA) and tensile results showed that thermal stability and mechanical properties of polyurethane acrylate samples are significantly dependent on the molecular weight and hydrophilicity of the urethane prepolymer as well as the content of acrylate monomers...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448514/facile-one-pot-synthesis-of-graphene-oxide-by-sonication-assisted-mechanochemical-approach-and-its-surface-chemistry
#11
Madhab Bera, Pragya Gupta, Pradip K Maji
Facile one pot synthesis of graphene oxide (GO) by sonication assisted mechanochemical approach has been reported here. The amalgamation of ultrasonication and mechanical stirring has assisted the synthesis of GO in a short time duration of only 4 hours with good reaction yield. The structural characterization of GO was performed by X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Visible spectroscopy and Raman spectroscopy. Atomic force microscopic (AFM) analysis manifested the flake like morphology of GO with average sheet thickness ~1...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29448409/ultrasonic-measurements-of-the-bulk-flow-field-in-foams
#12
Richard Nauber, Lars Büttner, Kerstin Eckert, Jochen Fröhlich, Jürgen Czarske, Sascha Heitkam
The flow field of moving foams is relevant for basic research and for the optimization of industrial processes such as froth flotation. However, no adequate measurement technique exists for the local velocity distribution inside the foam bulk. We have investigated the ultrasound Doppler velocimetry (UDV), providing the first two-dimensional, non-invasive velocity measurement technique with an adequate spatial (10mm) and temporal resolution (2.5Hz) that is applicable to medium scale foam flows. The measurement object is dry aqueous foam flowing upward in a rectangular channel...
January 2018: Physical Review. E
https://www.readbyqxmd.com/read/29448051/elasticity-and-wave-velocity-in-fcc-iron-austenite-at-elevated-temperatures-experimental-verification-of-ab-initio-calculations
#13
Bevis Hutchinson, Mikael Malmström, Johan Lönnqvist, Pete Bate, Hossein Ehteshami, Pavel A Korzhavyi
High temperature crystal elasticity constants for face centred cubic austenite are important for interpreting the ultrasonic properties of iron and steels but cannot be determined by normal single crystal methods. Values of these constants have recently been calculated using an ab-initio approach and the present work was carried out to test their applicability using laser-ultrasonic measurements. Steel samples having a known texture were examined at temperatures between 800 °C and 1100 °C to measure the velocity of longitudinal P-waves which were found to be in good agreement with modelled values...
February 8, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29446935/amine-functionalized-al-mof-y-x-sm-2-o-3-zno-a-visible-light-driven-nanocomposite-with-excellent-photocatalytic-activity-for-the-photo-degradation-of-amoxicillin
#14
Reza Abazari, Ali Reza Mahjoub
A visible light-driven amine-functionalized Al-based MOF # @ y x Sm 2 O 3 -ZnO nanocomposite (NH 2 -MOF # @ y x Sm 2 O 3 -ZnO NCP) was synthesized as an effective photocatalyst for AMX degradation in the presence of ultrasound, in which # is MOF synthesis conditions from MOF I to MOF XII and x and y stand for the weight percentages of Sm 2 O 3 -to-ZnO and Sm 2 O 3 -ZnO-to-MOF, respectively. The β-lactam antibiotic AMX, which is widely used for treating Gram-positive and Gram-negative bacterial infections in both animals and humans, was employed as a model pollutant...
February 15, 2018: Inorganic Chemistry
https://www.readbyqxmd.com/read/29446912/cathodic-corrosion-of-a-bulk-wire-to-non-aggregated-functional-nanocrystals-and-nanoalloys
#15
Jicheng Feng, Dong Chen, Ahmad Sediq, Stefan Romeijn, Frans D Tichelaar, Wim Jiskoot, Jun Yang, Marc T M Koper
A key enabling step in leveraging the properties of nanoparticles (NPs) is to explore new, simple, controllable, and scalable nanotechnologies for their syntheses. Among 'wet' methods, cathodic corrosion has been used to synthesize catalytic aggre-gates with some control over their size and preferential faceting. Here, we report on a modification of the cathodic corrosion method for producing a range of non-aggregated nanocrystals (Pt, Pd, Au, Ag, Cu, Rh, Ir, Ni) and nanoalloys (Pt50Au50, Pd50Au50, AgxAu100-x) with potential for scaling up the production rate...
February 15, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29446827/effect-of-ultrasound-dielectric-pretreatment-on-the-oxidation-resistance-of-vacuum-fried-apple-chips
#16
Xu Shen, Min Zhang, Bhesh Bhandari, Zhimei Guo
BACKGROUND: In order to investigate ultrasound dielectric pretreatment effect on oxidation resistance of vacuum fried apple chips, apple slices were pretreated at ultrasonic power for 150, 250 and 400 W and time for 10, 20 and, 30 min, followed by vacuum frying (VF) . The quality and oxidation resistance of fried apple were evaluated by testing the dielectric properties and comparing moisture content, oil uptake, color, acid value (AV) and peroxide value (PV) of apple chips. RESULTS: Ultrasonic treatment can significantly change dielectric properties of apple slices...
February 15, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29446742/development-of-an-in-vitro-drug-delivery-efficiency-test-for-a-pulmonary-toxicokinetic-pig-study
#17
Nadine Schaefer, Ann-Katrin Kroll, Matthias W Laschke, Michael D Menger, Hans H Maurer, Markus R Meyer, Peter H Schmidt
BACKGROUND: Since their appearance on the drugs of abuse market, synthetic cannabinoids (SCs) are gaining increasing toxicological relevance. They are consumed without knowledge of their toxicokinetic (TK) and toxicodynamic properties and human studies are not allowed due to ethical reasons. A controlled animal TK study following nebulization of 4-ethylnaphthalene-1-yl-(1-pentylindole-3-yl)methanone (JWH-210), 2-(4-methoxyphenyl)-1-(1-pentyl-indole-3-yl)methanone (RCS-4) as well as Δ9-tetrahydrocannabinol (THC) to pigs should be helpful for better interpretation of analytical results in cases of misuse or poisoning...
February 14, 2018: Current Drug Delivery
https://www.readbyqxmd.com/read/29445839/vocalization-as-a-novel-endpoint-of-atypical-attachment-behavior-in-2-3-7-8-tetrachlorodibenzo-p-dioxin-exposed-infant-mice
#18
Eiki Kimura, Chiharu Tohyama
Mammalian attachment behaviors, such as crying, are essential for infant survival by receiving food, protection, and warmth from caregivers. Ultrasonic vocalization (USV) of infant rodents functions to promote maternal proximity. Impaired USV emission has been reported in mouse models of autism spectrum disorder, suggesting that USV is associated with higher brain function. In utero and lactational dioxin exposure is known to induce higher brain function abnormalities in adulthood; however, whether perinatal dioxin exposure affects behavior during infancy is unclear...
February 14, 2018: Archives of Toxicology
https://www.readbyqxmd.com/read/29445187/adult-male-mice-exposure-to-nonylphenol-alters-courtship-vocalizations-and-mating
#19
Daphné Capela, Carlos Dombret, Kevin Poissenot, Manon Poignant, Aude Malbert-Colas, Isabelle Franceschini, Matthieu Keller, Sakina Mhaouty-Kodja
The neural circuitry processing male sexual behavior is tightly regulated by testosterone and its neural metabolite estradiol. The present study evaluated the effects of adult exposure to low doses of nonylphenol (NP), a widespread environmental contaminant, on the neuroendocrine regulation of testosterone and expression of sexual behavior. Oral exposure of C57BL/6J males to NP (0.5, 5 or 50 μg/kg/day) for 4 weeks did not affect circulating levels of testosterone or the kisspeptin system, a key regulator of the gonadotropic axis...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29445076/clinical-utility-of-carotid-ultrasonography-in-the-prediction-of-cardiovascular-events-in-patients-with-diabetes-a-combined-analysis-of-data-obtained-in-five-longitudinal-studies
#20
Naoto Katakami, Tomoya Mita, Masahiko Gosho, Mitsuyoshi Takahara, Yoko Irie, Tetsuyuki Yasuda, Taka-Aki Matsuoka, Takeshi Osonoi, Hirotaka Watada, Iichiro Shimomura
AIM: It remains unclear whether measures used in carotid ultrasonography such as the intima-media thickness (IMT) and ultrasonic tissue characterization of the carotid using the gray-scale median (GSM) can add prognostic information beyond the conventional cardiovascular risk markers in patients with diabetes. METHODS: This study employed a combined analysis of data obtained in five longitudinal studies including a total of 3263 patients with diabetes but without apparent cardiovascular disease (CVD) at baseline...
February 14, 2018: Journal of Atherosclerosis and Thrombosis
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