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https://www.readbyqxmd.com/read/28511708/enzyme-mediated-formulation-of-stable-elliptical-silver-nanoparticles-tested-against-clinical-pathogens-and-mdr-bacteria-and-development-of-antimicrobial-surgical-thread
#1
Rupak Thapa, Chintan Bhagat, Pragya Shrestha, Suvash Awal, Pravin Dudhagara
BACKGROUND: Silver nanoparticles (AgNPs) are believed to be emerging tool against various infectious diseases including multi-drug resistant (MDR) bacteria. In the present study, in vitro synthesis of AgNPs was optimized using 1:50 ratio of macerozyme (25 μg/μl) and 1 mM AgNO3 incubated at 80 °C for 8 h. AgNPs were characterized by UV-Visible spectroscopy, dynamic light scattering (DLS), scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy (TEM) and X-ray diffraction (XRD)...
May 16, 2017: Annals of Clinical Microbiology and Antimicrobials
https://www.readbyqxmd.com/read/28435109/visible-light-inactivation-of-e-%C3%A2-coli-cytotoxicity-and-ros-determination-of-biochemically-capped-gold-nanoparticles
#2
Faheem Ullah Khan, Yongmei Chen, Naeem Ullah Khan, Aftab Ahmad, Kamran Tahir, Zia UlHaq Khan, Arif Ullah Khan, Shifa Ullah Khan, Muslim Raza, Pingyu Wan
The formation of metal nanoparticles is one of the most vast and intensifying research areas in favor of prospective applications for the advancement of new technologies. It is a well-founded, significant feature of green chemistry that making marvelous interconnection between nano-biotechnology and microbial biotechnology. In the present research, the aqueous extract of medicinally important plant Coptis Chinensis (in Chinese called "gold thread") was applied for the synthesis of gold nanoparticles (Au-NPs)...
April 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28430736/vertical-lifting-a-new-optimal-thread-lifting-technique-for-asians
#3
Seung Hoon Kang, Eun Jung Byun, Hei Sung Kim
BACKGROUND: With the evolution of facial rejuvenation methods, thread lifts have gained popularity among patients who seek cosmetic improvement. Absorbable wedge-shaped polydioxanone (PDO) sutures are currently available, and they are extremely popular in the aesthetic clinics in Korea. In case of midface and mandibular jowl lift, threads are most often inserted in an oblique manner with vectors of rejuvenation directed toward the temple. However, specific characteristics of skeletal anatomy should be considered when deciding which technique to use in Asians...
April 19, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28379737/living-with-the-choice-a-grounded-theory-of-iraqi-refugee-resettlement-to-the-u-s
#4
Lisa A Davenport
Though the United States has become a place of increasing resettlement for refugees, particularly Iraqi refugees who have been forced to flee their homeland due to violence, persecution and civil unrest, little is known about Iraqi refugee resettlement in the United States, or the way in which resettlement impacts health and adjustment. A grounded theory study was conducted to develop a substantive theory of Iraqi refugee resettlement. Participants in the qualitative study included 29 Iraqi refugees and 2 community partners who participated in face-to face interviews...
April 2017: Issues in Mental Health Nursing
https://www.readbyqxmd.com/read/28377916/empowering-the-physiotherapy-profession-in-ethiopia-through-leadership-development-within-the-doctoring-process
#5
Cheryl Burditt Footer, Hailu Seifu Tsegaye, Tesfaye Asnake Yitnagashaw, Wintana Mekonnen, Tizita Destaw Shiferaw, Endashaw Abera, Alice Davis
Ethiopia recently introduced the Doctor of Physiotherapy (DPT) degree at Addis Ababa University as a mechanism to increase the work force capacity of primary care providers in the health sector. The DPT program was supported by an international academic partnership and was designed to empower physiotherapists as leaders to move the profession forward. The curriculum was framed by core pedagogical principles and strategies and was phased into two programs. First, the 4-year Advanced Standing DPT program focused on developing registered Ethiopian physiotherapists with Bachelor of Science degrees as academic faculty...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28344565/from-attire-to-assault-clothing-objectification-and-de-humanization-a-possible-prelude-to-sexual-violence
#6
Bhuvanesh Awasthi
In the context of objectification and violence, little attention has been paid to the perception neuroscience of how the human brain perceives bodies and objectifies them. Various studies point to how external cues such as appearance and attire could play a key role in encouraging objectification, dehumanization and the denial of agency. Reviewing new experimental findings across several areas of research, it seems that common threads run through issues of clothing, sexual objectification, body perception, dehumanization, and assault...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28324810/the-emotional-process-from-diagnosis-to-birth-following-a-prenatal-diagnosis-of-fetal-anomaly-a-qualitative-study-of-messages-in-online-discussion-boards
#7
Tommy Carlsson, Veronica Starke, Elisabet Mattsson
OBJECTIVE: to explore written statements found in online discussion boards where parents currently expecting, or with previous experience of expecting, a child with a prenatally diagnosed congenital anomaly communicate about their emotional process from diagnosis to birth. DESIGN: cross-sectional qualitative study of messages in public online discussion boards. SETTING: Swedish public discussion boards about reproductive subjects. SAMPLE: ten pregnant women and eight parents (of children with prenatal diagnoses) who had written 852 messages in five threads in Swedish online discussion boards identified via systematic searches...
March 2, 2017: Midwifery
https://www.readbyqxmd.com/read/28323715/the-safety-and-strength-of-a-novel-medial-partial-nonthreaded-pedicle-screw-a-cadaveric-and-biomechanical-investigation
#8
Mun Keong Kwan, Chris Yin Wei Chan, Lim Beng Saw, Shanmugam Rukmanikanthan, Lawrence G Lenke
STUDY DESIGN: Cadaveric and biomechanical study. OBJECTIVE: The aim of this study was to assess the safety and pullout strength of medial, partial nonthreaded thoracic pedicle screws compared with conventional screws. SUMMARY OF BACKGROUND DATA: The perforation rate of the pedicle screws has been reported as high as 41%. Nerve injury and irritation can result from the compression of malpositioned screw on neural structures. METHODS: Ten fresh cadavers were studied...
April 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28255918/morphological-and-molecular-characterization-of-four-sarcocystis-spp-including-sarcocystis-linearis-n-sp-from-roe-deer-capreolus-capreolus-in-italy
#9
Bjørn Gjerde, Stefano Giacomelli, Alessandro Bianchi, Irene Bertoletti, Hajime Mondani, Lucia Rita Gibelli
Fresh (frozen/thawed) muscle samples from four 2-12-year-old roe deer (Capreolus capreolus) from the Sondrio province in north-eastern Italy were examined under a dissecting microscope, and about 180 sarcocysts were isolated and identified to morphological type in wet mounts by light microscopy (LM). Seventy-seven of these sarcocysts were subsequently examined by molecular methods, comprising polymerase chain reaction (PCR) amplification and sequencing of the partial cytochrome c oxidase subunit I gene (cox1) of all isolates, as well as PCR amplification, cloning and sequencing of the complete18S ribosomal RNA (rRNA) gene of two isolates of each species found...
March 2, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28165323/role-of-tim17-in-coupling-the-import-motor-to-the-translocation-channel-of-the-mitochondrial-presequence-translocase
#10
Keren Demishtein-Zohary, Umut Günsel, Milit Marom, Rupa Banerjee, Walter Neupert, Abdussalam Azem, Dejana Mokranjac
The majority of mitochondrial proteins use N-terminal presequences for targeting to mitochondria and are translocated by the presequence translocase. During translocation, proteins, threaded through the channel in the inner membrane, are handed over to the import motor at the matrix face. Tim17 is an essential, membrane-embedded subunit of the translocase; however, its function is only poorly understood. Here, we functionally dissected its four predicted transmembrane (TM) segments. Mutations in TM1 and TM2 impaired the interaction of Tim17 with Tim23, component of the translocation channel, whereas mutations in TM3 compromised binding of the import motor...
February 6, 2017: ELife
https://www.readbyqxmd.com/read/28063986/evidence-of-structurally-continuous-collagen-fibrils-in-tendons
#11
Rene B Svensson, Andreas Herchenhan, Tobias Starborg, Michael Larsen, Karl E Kadler, Klaus Qvortrup, S Peter Magnusson
Tendons transmit muscle-generated force through an extracellular matrix of aligned collagen fibrils. The force applied by the muscle at one end of a microscopic fibril has to be transmitted through the macroscopic length of the tendon by mechanisms that are poorly understood. A key element in this structure-function relationship is the collagen fibril length. During embryogenesis short fibrils are produced but they grow rapidly with maturation. There is some controversy regarding fibril length in adult tendon, with mechanical data generally supporting discontinuity while structural investigations favor continuity...
January 5, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28033643/suspension-threads
#12
Elen C D J De Masi, Flávia D J De Masi, Roberta D J De Masi
Suture threads are a minimally invasive surgical technique for facial rejuvenation. Its use was initiated by Sulamanidze et al with propylene after Serdev introduced suture with polycaproamide; however, these types of suture increased inflammatory reaction. For correction of the aging face, surgeons are devising more procedures with fewer incisions and shorter postoperative recovery periods. Many of these procedures use absorbable and nonabsorbable sutures in the dermis and subcutis to lift lax skin. The polydioxanone suture is currently a great option for antiaging treatment, because besides the ease of applicability and good results, it also has a low incidence of adverse reactions...
December 2016: Facial Plastic Surgery: FPS
https://www.readbyqxmd.com/read/27943316/to-give-and-to-get-how-nurse-faculty-scholars-contribute-and-benefit-from-participating-in-interdisciplinary-research-teams
#13
Guillermina R Solis
BACKGROUND: Meeting the demands for career advancement in the faculty tenure track of a university becomes a challenge for new researchers when active nursing research is limited or nonexistent. Nurse faculty transitioning from clinical practice settings may face greater difficulty climbing the ladder of promotion because of the limited opportunity for nursing research. A way to create a research thread that will allow an opportunity to ease into the new role and build an effective research team is to participate in an interdisciplinary research (IDR) team...
April 2017: Nursing Forum
https://www.readbyqxmd.com/read/27748691/investigation-on-the-cutaneous-change-induced-by-face-lifting-monodirectional-barbed-polydioxanone-thread
#14
Jihee Kim, Zhenlong Zheng, Heesu Kim, Kyung Ae Nam, Kee Yang Chung
BACKGROUND: Owing to its potentially greater mechanical force on the implanted tissue, barbed thread is frequently used in face-lifting procedures. However, the long-term durability thereof remains controversial. Moreover, reports on underlying histologic and molecular changes resulting from face-lifting procedures are scarce. OBJECTIVE: To evaluate histologic and molecular changes induced by absorbable, barbed face-lifting thread in an animal model. MATERIALS AND METHODS: Fragments of monofilament, monodirectionally barbed polydioxanone thread were implanted in dorsal skin from 12 guinea pigs...
January 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/27504362/an-innovative-method-of-assessing-the-mechanical-axis-deviation-in-the-lower-limb-in-standing-position
#15
Jagannath Kamath, Raja Shekar Danda, Nikil Jayasheelan, Rohit Singh
INTRODUCTION: Various methods of measuring mechanical axis deviation of lower limb have been described including radiographic and CT scanogram, intraoperative fluoroscopy with the use of an electrocautery cord. These methods determine the mechanical axis in a supine, non-weight bearing position. Although long cassette standing radiographic view is used for the purpose but is not available at most centres. A dynamic method of determining the mechanical axis in a weight bearing position was devised in this study...
June 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27460842/hagfish-slime-and-mucin-flow-properties-and-their-implications-for-defense
#16
Lukas Böni, Peter Fischer, Lukas Böcker, Simon Kuster, Patrick A Rühs
When hagfish (Myxinidae) are attacked by predators, they form a dilute, elastic, and cohesive defensive slime made of mucins and protein threads. In this study we propose a link between flow behavior and defense mechanism of hagfish slime. Oscillatory rheological measurements reveal that hagfish slime forms viscoelastic networks at low concentrations. Mucins alone did not contribute viscoelasticity, however in shear flow, viscosity was observed. The unidirectional flow, experienced by hagfish slime during suction feeding by predators, was mimicked with extensional rheology...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27454946/threading-through-macrocycles-enhances-the-performance-of-carbon-nanotubes-as-polymer-fillers
#17
Alejandro López-Moreno, Belén Nieto-Ortega, Maria Moffa, Alberto de Juan, M Mar Bernal, Juan P Fernández-Blázquez, Juan J Vilatela, Dario Pisignano, Emilio M Pérez
In this work, we study the reinforcement of polymers by mechanically interlocked derivatives of single-walled carbon nanotubes (SWNTs). We compare the mechanical properties of fibers made of polymers and of composites with pristine SWNTs, mechanically interlocked derivatives of SWNTs (MINTs), and the corresponding supramolecular models. Improvements of both Young's modulus and tensile strength of up to 200% were observed for the polystyrene-MINT samples with an optimized loading of just 0.01 wt %, while the supramolecular models with identical chemical composition and loading showed negligible or even detrimental influence...
August 23, 2016: ACS Nano
https://www.readbyqxmd.com/read/27351597/unidirectional-threading-into-a-bowl-shaped-macrocyclic-trimer-of-boron-dipyrrin-complexes-through-multipoint-recognition
#18
Takashi Nakamura, Gento Yamaguchi, Tatsuya Nabeshima
Bowl-shaped macrocycles have the distinctive feature that their two sides are differentiated, and thus can be developed into elaborate hosts that fix a target molecule in a controlled geometry through multipoint interactions. We now report the synthesis of a bowl-shaped macrocyclic trimer of the boron-dipyrrin (BODIPY) complex and its unidirectional threading of guest molecules. Six polarized B(δ+) -F(δ-) bonds are directed towards the center of the macrocycle, which enables strong recognition of cationic guests...
August 8, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27329047/cdse-nanoplatelets-living-polymers
#19
Santanu Jana, Patrick Davidson, Benjamin Abécassis
Colloidal CdSe nanoplatelets are considered to be excellent candidates for many applications in nanotechnology. One of the current challenges is to self-assemble these colloidal quantum wells into large ordered structures to control their collective optical properties. We describe a simple and robust procedure to achieve controlled face-to-face self-assembly of CdSe nanoplatelets into micron-long polymer-like threads made of up to ∼1000 particles. These structures are formed by addition of oleic acid to a stable colloidal dispersion of platelets, followed by slow drying and re-dispersion...
August 1, 2016: Angewandte Chemie
https://www.readbyqxmd.com/read/27006683/mesoscale-morphology-at-nanoscale-resolution-serial-block-face-scanning-electron-microscopy-reveals-fine-3d-detail-of-a-novel-silk-spinneret-system-in-a-tube-building-tanaid-crustacean
#20
Tomonari Kaji, Keiichi Kakui, Naoyuki Miyazaki, Kazuyoshi Murata, A Richard Palmer
BACKGROUND: The study of morphology is experiencing a renaissance due to rapid improvements in technologies for 3D visualization of complex internal and external structures. But 3D visualization of the internal structure of mesoscale objects - those in the 10-1000 μm range - remains problematic. They are too small for microCT, many lack suitable specific fluorescent markers for confocal microscopy, or they require labor-intensive stacking and smoothing of individual TEM images. Here we illustrate the first comprehensive morphological description of a complete mesoscale biological system at nanoscopic resolution using ultra-modern technology for 3D visualization - serial block-face scanning electron microscopy (SBF-SEM)...
2016: Frontiers in Zoology
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