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https://www.readbyqxmd.com/read/29328291/whispering-gallery-modes-in-a-single-silica-microparticle-attached-to-an-optical-microfiber-and-their-application-for-highly-sensitive-displacement-sensing
#1
Ningyu Liu, Lei Shi, Song Zhu, Xinbiao Xu, Shixing Yuan, Xinliang Zhang
A compact and relatively stable structure is experimentally demonstrated to excite whispering gallery modes (WGMs) in a single chemically fabricated silica microparticles with a diameter of around 10.6 μm attached to an optical microfiber. The resonance dip with an extinction ratio of 14 dB and Q factor of around 300 has been achieved. Based on the WGMs in this structure, an in-line fiber-optic displacement sensor is presented with a high sensitivity of 33 dB/mm and a measurement range of over 400 μm. The measurement resolution of this displacement sensor can reach to ~10 μm...
January 8, 2018: Optics Express
https://www.readbyqxmd.com/read/29309733/flexible-and-hierarchically-structured-sulfur-composite-cathode-based-on-the-carbonized-textile-for-high-performance-li-s-batteries
#2
Peibo Gao, Shixing Xu, Zhangwei Chen, Xi Huang, Zhihao Bao, Changshi Lao, Guangming Wu, Yongfeng Mei
Carbon hosts have been utilized to obtain composite cathodes with high sulfur loadings for Li-S battery. However the complicated synthesis process may hinder their practical applications. Besides, their mechanical and electrochemical properties shall be further improved. Herein, a facile scalable dip-coating process is developed to synthesize a flexible composite cathode with a high sulfur loading. Via the process, a hybrid composed of carbon nanotubes, carbon black, sulfur and titania nanoparticles is successfully conformally coated on the carbonized textile (c-textile)...
January 8, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29274823/change-in-the-temporal-coordination-of-the-finger-joints-with-ulnar-nerve-block-during-different-power-grips-analyzed-with-a-sensor-glove
#3
N J Wachter, M Mentzel, C Häderer, G D Krischak, J Gülke
Ulnar nerve injuries can cause deficient hand movement patterns. Their assessment is important for diagnosis and rehabilitation in hand surgery cases. The purpose of this study was to quantify the changes in temporal coordination of the finger joints during different power grips with an ulnar nerve block by means of a sensor glove. In 21 healthy subjects, the onset and end of the active flexion of the 14 finger joints when gripping objects of different diameters was recorded by a sensor glove. The measurement was repeated after an ulnar nerve block was applied in a standardized setting...
December 20, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/29234053/liquid-crystal-based-electrically-tuned-electromagnetically-induced-transparency-metasurface-switch
#4
Hang Su, Hao Wang, Hua Zhao, Tingyu Xue, Jingwen Zhang
In this study, a structure to realize a switchover between two different responses of electromagnetically induced transparency (EIT) was designed and implemented by simulation. Taking advantage of the anisotropy in the structure and the coupling between the radiative and dark elements, a metasurface switch with modulation depth of over 85% between orthogonal polarization incident light illuminations was demonstrated. The key mode switchover between the "on" and "off" states was achieved by electrically changing the dressing light polarization with a liquid crystals layer pre-aligned with a mature technology, without changing the incident light and an expected and reversible transition from an EIT-like spectrum to a strong spectral dip was observed...
December 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29154539/electrokinetic-removal-of-dodecyl-sulfate-micelles-from-digested-protein-samples-prior-to-electrospray-ionization-mass-spectrometry
#5
Ria Marni Tubaon, Paul Raymond Haddad, Joselito P Quirino
In proteomics, dodecyl sulfate (DS-) as sodium salt is commonly used in protein solubilization prior to tryptic digestion, but the presence of the DS- hampers the electrospray ionization mass spectrometric (ESI-MS) analysis. The development of DS- depletion techniques is therefore important especially when dealing with small samples where there could be poor sensitivity due to sample loss or dilution during sample preparation. Here, we present a simple and fast electrokinetic removal method of DS- from small volumes of peptide and digested protein samples prior to ESI-MS...
November 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/29146158/plasma-microrna-155-5p-is-increased-among-patients-with-chronic-kidney-disease-and-nocturnal-hypertension
#6
Dominika Klimczak, Marek Kuch, Tomasz Pilecki, Dorota Żochowska, Agnieszka Wirkowska, Leszek Pączek
MicroRNAs play multiple roles in the regulation of blood pressure (BP). Nevertheless, to date, no study has assessed the association between microRNA plasma expression and BP control in chronic kidney disease (CKD) patients. Given this background, we evaluated the plasma expression of miR-155-5p, a translational inhibitor of angiotensin receptor type I, in CKD patients, to determine the association between miR-155-5p level and BP control. In this single-center cross-sectional study, we analyzed the miR-155-5p concentration by quantitative reverse transcriptase polymerase chain reaction using the U6 snRNA as a reference gene and 24-hour ambulatory blood pressure monitoring in CKD patients (stage ≥2) in relation to a control group of healthy age-matched and gender-matched individuals, with normal BP proven by the ambulatory blood pressure monitoring...
December 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29128778/circadian-blood-pressure-patterns-and-blood-pressure-control-in-patients-with-chronic-kidney-disease
#7
Nicola Di Daniele, Danilo Alunni Fegatelli, Valentina Rovella, Veronica Castagnola, Marco Gabriele, Angelo Scuteri
BACKGROUND AND AIMS: Hypertension is a major risk factor for chronic kidney disease (CKD), and CKD progression is associated with suboptimal blood pressure (BP) control. Here we evaluate the impact of CKD on the attainment of BP control and the circadian BP profile in older subjects. METHODS: In this observational study, we studied 547 patients referred to the hypertension clinic, of whom 224 (40.9%) had CKD. Blood pressure (BP) control and circadian BP patterns were evaluated by 24-hour ambulatory BP monitoring...
December 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29098880/specificity-of-reversible-adp-ribosylation-and-regulation-of-cellular-processes
#8
Kerryanne Crawford, Juan José Bonfiglio, Andreja Mikoč, Ivan Matic, Ivan Ahel
Proper and timely regulation of cellular processes is fundamental to the overall health and viability of organisms across all kingdoms of life. Thus, organisms have evolved multiple highly dynamic and complex biochemical signaling cascades in order to adapt and survive diverse challenges. One such method of conferring rapid adaptation is the addition or removal of reversible modifications of different chemical groups onto macromolecules which in turn induce the appropriate downstream outcome. ADP-ribosylation, the addition of ADP-ribose (ADPr) groups, represents one of these highly conserved signaling chemicals...
November 3, 2017: Critical Reviews in Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28980066/blood-pressure-profile-is-associated-with-microalbuminuria-and-retinopathy-in-hypertensive-nondiabetic-patients
#9
Berrin Karadag, Tolga Ozyigit, Zeliha Serindag, Aysegul Ilhan, Beste Ozben
BACKGROUND: Target organ damage is important for global cardiovascular risk assessment. The aim of this study was to explore the association between the blood pressure profile and end-organ damage in a hypertensive non-diabetic cohort. METHODS: A total of 560 consecutive hypertensive nondiabetic patients (mean age: 58.2 ± 13.3 years, 221 men) were included in the study. All patients underwent thorough physical examination including fundoscopic examination. First morning urine samples were obtained from each patient and measurement of the albumin-to-creatinine ratio in first morning urine collection samples was used for diagnosis of microalbuminuria...
October 4, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28870547/association-of-ambulatory-blood-pressure-monitoring-parameters-with-the-framingham-stroke-risk-profile
#10
Georgios Tsivgoulis, Maria Pikilidou, Aristeidis H Katsanos, Kimon Stamatelopoulos, Fotios Michas, Aikaterini Lykka, Christina Zompola, Angeliki Filippatou, Efstathios Boviatsis, Konstantinos Voumvourakis, Nikolaos Zakopoulos, Efstathios Manios
The Framingham Stroke Risk Profile (FSRP) is a novel and reliable tool for estimating the 10-year probability for incident stroke in stroke-free individuals, while the predictive value of ambulatory blood pressure monitoring (ABPM) for first-ever and recurrent stroke has been well established. We sought to evaluate cross-sectionally the association of ABPM parameters with FSRP score in a large sample of 2343 consecutive stroke-free individuals (mean age: 56.0±12.9, 49.1% male) who underwent 24-hour ABPM. True hypertensives showed significantly higher FSRP (11...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28862720/effect-of-the-different-implant-protocols-on-peri-implant-bone-a-6-month-prospective-study-in-beagle-dogs
#11
Dandan Song, Hui Zheng, Yan Huang, Xucheng Ma, Guowu Ma, Xin Liang
OBJECTIVE: To compare the effects of different implant placement and loading protocols on the marginal bone loss (MBL) in beagles by intraoral radiography. METHODS AND MATERIALS: 61 dental implants were inserted on 9 beagle dogs at bilateral lower posteriors according to 8 different protocols: immediate implant placement and immediate loading for 3 months (IIP + IL3) or 6 months (IIP + IL6) and unloading (IIP + UL), immediate implant placement and delayed loading for 3 months (IIP + DL3) or 6 months (IIP + DL6), delayed implant placement and immediate loading for 3 months (DIP + IL3) or delayed loading for 3 months (DIP + DL3) and unloading (DIP + UL)...
August 11, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28853574/light-induced-surface-reactions-at-the-bismuth-vanadate-potassium-phosphate-interface
#12
Marco Favaro, Fatwa F Abdi, Marlene Lamers, Ethan J Crumlin, Zhi Liu, Roel van de Krol, David E Starr
Bismuth vanadate has recently drawn significant research attention as a light-absorbing photoanode due to its performance for photoelectrochemical water splitting. In this study, we use in situ ambient pressure X-ray photoelectron spectroscopy with "Tender" X-rays (4.0 keV) to investigate a polycrystalline bismuth vanadate (BiVO4) electrode in contact with an aqueous potassium phosphate (KPi) solution at open circuit potential under both dark and light conditions. This is facilitated by the creation of a 25 to 30 nanometers thick electrolyte layer using the "dip-and-pull" method...
August 30, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28834120/the-relationship-between-a-blunted-morning-surge-and-a-reversed-nocturnal-blood-pressure-dipping-or-riser-pattern
#13
Takeshi Fujiwara, Naoko Tomitani, Keiko Sato, Ayako Okura, Noriyuki Suzuki, Kazuomi Kario
The authors sought to determine the association between the blunted morning blood pressure (BP) surge and nocturnal BP dipping of the "riser" pattern in 501 patients with hypertension enrolled in the ACHIEVE-ONE (Ambulatory Blood Pressure Control and Home Blood Pressure [Morning and Evening] Lowering by the N-Channel Blocker Cilnidipine) trial. The patients' sleep-trough morning BP surge and prewaking surge were calculated and then classified according to their nocturnal systolic BP reduction pattern as extreme dippers, dippers, nondippers, and risers...
November 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28834119/racial-differences-in-nocturnal-dipping-status-in-diabetic-kidney-disease-results-from-the-stop-dkd-simultaneous-risk-factor-control-using-telehealth-to-slow-progression-of-diabetic-kidney-disease-study
#14
Leah L Zullig, Clarissa J Diamantidis, Hayden B Bosworth, Manjushri V Bhapkar, Huiman Barnhart, Megan M Oakes, Jane F Pendergast, Julie J Miller, Uptal D Patel
While racial variation in ambulatory blood pressure (BP) is known, patterns of diurnal dipping in the context of diabetic kidney disease have not been well defined. The authors sought to determine the association of race with nocturnal dipping status among participants with diabetic kidney disease enrolled in the STOP-DKD (Simultaneous Risk Factor Control Using Telehealth to Slow Progression of Diabetic Kidney Disease) trial. The primary outcome was nocturnal dipping-percent decrease in average systolic BP from wake to sleep-with categories defined as reverse dippers (decrease <0%), nondippers (0%-<10%), and dippers (≥10%)...
August 20, 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28754607/reversal-of-nocturnal-non-dipping-of-blood-pressure-after-levothyroxine-therapy-in-patients-with-subclinical-hypothyroidism
#15
Mannmath Nath, Balram Gupta, Madhukar Rai, Surya K Singh
AIMS: To study the loss of diurnal variation in blood pressure in normotensive patients with Subclinical/overt hypothyroidism and effect of Levothyroxine (L-T4) treatment. MATERIALS AND METHODS: In this interventional study Eighty patients between 17- 50 years with newly detected OH and SCH (74 women and 6 men) and nine euthyroid subjects (all men) with blood pressure <140/90 were recruited. All patients underwent 24h ambulatory blood pressure monitoring (ABPM) using ABPM machine before and after treatment with L-T4...
July 20, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28736895/independent-association-between-age-and-circadian-systolic-blood-pressure-patterns-in-adults-with-hypertension
#16
Ming Deng, Da-Wei Chen, Yi-Fei Dong, Peng Lu, Bi-Ming Zhan, Jian-Qing Xu, Xi-Xin Ji, Ping Li, Xiao-Shu Cheng
Previous studies indicate a preliminary association between age and circadian blood pressure (BP) variation. This association would be affected by confounding factors in real-world populations. The authors investigated whether this is a convincingly independent association in a real-world population of adults with hypertension. Clinical data and findings of 24-hour ambulatory BP monitoring were obtained from 297 consecutive adults with hypertension (60.19±0.77 years). BP dipping patterns were categorized based on the percentage of nocturnal BP drop...
October 2017: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/28733831/nocturnal-blood-pressure-dipping-is-abolished-in-old-elderly-hospitalized-patients
#17
Francesco Salvo, Chiara Lonati, Michele Berardi, Andrea Riccardo Errani, Carlo Lorenzo Muzzulini, Alberto Morganti
INTRODUCTION: During sleep there is reduction of blood pressure (BP) caused by a decrease of the sympathetic nervous tone. This nocturnal "dipping" phenomenon, assessable with ambulatory blood pressure monitoring (ABPM), is blunted with increasing age. AIM: To assess the effect of hospitalization on night-time BP fall in old-elderly patients. METHODS: We analysed 78 ABPM of old-elderly hospitalized patients (mean age 91 ± 0.5 years) and those of 18 outpatients as control group...
December 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28704507/regular-moist-snuff-dipping-does-not-affect-endurance-exercise-performance
#18
Frida Björkman, Fredrik Edin, C Mikael Mattsson, Filip Larsen, Björn Ekblom
Physiological and medical effects of snuff have previously been obtained either in cross-sectional studies or after snuff administration to non-tobacco users. The effects of snuff cessation after several years of daily use are unknown. 24 participants with >2 years of daily snuff-use were tested before and after >6 weeks snuff cessation (SCG). A control group (CO) of 11 snuff users kept their normal habits. Resting heart rate (HR) and blood pressure (BP) were significantly lower in SCG after snuff cessation, and body mass was increased by 1...
2017: PloS One
https://www.readbyqxmd.com/read/28701886/overexpression-of-ginseng-ugt72al1-causes-organ-fusion-in-the-axillary-leaf-branch-of-arabidopsis
#19
Ngoc Quy Nguyen, Ok Ran Lee
BACKGROUND: Glycosylation of natural compounds increases the diversity of secondary metabolites. Glycosylation steps are implicated not only in plant growth and development, but also in plant defense responses. Although the activities of uridine-dependent glycosyltransferases (UGTs) have long been recognized, and genes encoding them in several higher plants have been identified, the specific functions of UGTs in planta remain largely unknown. METHODS: Spatial and temporal patterns of gene expression were analyzed by quantitative reverse transcription (qRT)-polymerase chain reaction (PCR) and GUS histochemical assay...
July 2017: Journal of Ginseng Research
https://www.readbyqxmd.com/read/28701884/cis-prenyltransferase-interacts-with-a-nogo-b-receptor-homolog-for-dolichol-biosynthesis-in-panax-ginseng-meyer
#20
Ngoc Quy Nguyen, Sang-Choon Lee, Tae-Jin Yang, Ok Ran Lee
BACKGROUND: Prenyltransferases catalyze the sequential addition of isopentenyl diphosphate units to allylic prenyl diphosphate acceptors and are classified as either trans-prenyltransferases (TPTs) or cis-prenyltransferases (CPTs). The functions of CPTs have been well characterized in bacteria, yeast, and mammals compared to plants. The characterization of CPTs also has been less studied than TPTs. In the present study, molecular cloning and functional characterization of a CPT from a medicinal plant, Panax ginseng Mayer were addressed...
July 2017: Journal of Ginseng Research
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