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https://www.readbyqxmd.com/read/28748692/reductive-activation-of-c70-equatorial-carbons-and-structurally-characterized-c70-%C3%AE-adduct-with-closed-5-6-ring-fusion
#1
Wei-Wei Yang, Zong-Jun Li, Shu-Hui Li, Sheng-Li Wu, Zujin Shi, Xiang Gao
The C70 δ-adducts with closed [5,6]-ring fusion are an important type of compounds in classifying the bond delocalization in the equatorial belt of C70. However, the formation of such compounds is severely restricted due to the low reactivity of the carbon atoms in the flat equatorial region. Such a restriction is lifted when reduced anionic C70 species are used, where the inert equatorial carbon atoms are activated.
July 27, 2017: Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28747395/the-role-of-the-leading-edge-vortex-in-lift-augmentation-of-steadily-revolving-wings-a-change-in-perspective
#2
REVIEW
Mostafa R A Nabawy, William J Crowther
The presence of a stable leading edge vortex (LEV) on steadily revolving wings increases the maximum lift coefficient that can be generated from the wing and its role is important to understanding natural flyers and flapping wing vehicles. In this paper, the role of LEV in lift augmentation is discussed under two hypotheses referred to as 'additional lift' and 'absence of stall'. The 'additional lift' hypothesis represents the traditional view. It presumes that an additional suction/circulation from the LEV increases the lift above that of a potential flow solution...
July 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28746271/facial-assessment-and-injection-guide-for-botulinum-toxin-and-injectable-hyaluronic-acid-fillers-focus-on-the-upper-face
#3
Maurício de Maio, Arthur Swift, Massimo Signorini, Steven Fagien
Techniques for the administration of injectable fillers and neuromodulators for facial aesthetic rejuvenation and enhancement continue to evolve. As the number of physicians with limited experience in providing aesthetic treatments expands, the need for guidance and training from more experienced injectors has become apparent. The use of a slow, careful, and methodical injection technique is imperative in all treatment settings and for all facial areas. Constant attention to local anatomy, particularly arteries, veins, and nerve bundles, is critical for minimizing complications...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28746270/facial-nerve-supply-to-the-orbicularis-oculi-around-the-lower-eyelid-anatomy-and-its-clinical-implications
#4
Yeop Choi, Hyun Gu Kang, Yong Seok Nam, Jae-Goo Kang, In-Beom Kim
BACKGROUND: The motor innervation of the lower orbicularis oculi has not been clearly established. There is a discrepancy between anatomical descriptions and clinical outcomes of the motor innervation of the pretarsal orbicularis oculi muscle. Therefore, the purposes of this study were to identify every motor and sensory nerve of the lower eyelid, and to reveal the detailed motor nerve pathways toward the medial canthal area. METHODS: Fresh cadaver dissections were performed on 50 hemifaces under a surgical microscope...
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28744791/automatic-allograft-bone-selection-through-band-registration-and-its-application-to-distal-femur
#5
Yu Zhang, Lei Qiu, Fengzan Li, Qing Zhang, Li Zhang, Xiaohui Niu
Clinical reports suggest that large bone defects could be effectively restored by allograft bone transplantation, where allograft bone selection acts an important role. Besides, there is a huge demand for developing the automatic allograft bone selection methods, as the automatic methods could greatly improve the management efficiency of the large bone banks. Although several automatic methods have been presented to select the most suitable allograft bone from the massive allograft bone bank, these methods still suffer from inaccuracy...
July 25, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28743218/development-of-a-lumbar-emg-based-coactivation-index-for-the-assessment-of-complex-dynamic-tasks
#6
Peter Le, Alexander Aurand, Benjamin A Walter, Thomas M Best, Safdar N Khan, Ehud Mendel, William S Marras
The objective of this study was to develop and test an EMG-based coactivation index and compare it to a coactivation index defined by a biologically-assisted lumbar spine model to differentiate between tasks. The purpose was to provide a universal approach to assess coactivation of a multi-muscle system when a computational model is not accessible. The EMG-based index developed utilized anthropometric-defined muscle characteristics driven by torso kinematics and EMG. Muscles were classified as agonists/antagonists based upon 'simulated' moments of the muscles relative to the total 'simulated' moment...
July 26, 2017: Ergonomics
https://www.readbyqxmd.com/read/28741303/open-retropubic-colposuspension-for-urinary-incontinence-in-women
#7
REVIEW
Marie Carmela M Lapitan, June D Cody, Atefeh Mashayekhi
BACKGROUND: Urinary incontinence is a common and potentially debilitating problem. Stress urinary, incontinence as the most common type of incontinence, imposes significant health and economic burdens on society and the women affected. Open retropubic colposuspension is a surgical treatment which involves lifting the tissues near the bladder neck and proximal urethra in the area behind the anterior pubic bones to correct deficient urethral closure to correct stress urinary incontinence...
July 25, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28741055/effects-of-tunable-excitation-in-carotenoids-explained-by-the-vibrational-energy-relaxation-approach
#8
Vytautas Balevičius, Craig N Lincoln, Daniele Viola, Giulio Cerullo, Jürgen Hauer, Darius Abramavicius
Carotenoids are fundamental building blocks of natural light harvesters with convoluted and ultrafast energy deactivation networks. In order to disentangle such complex relaxation dynamics, several studies focused on transient absorption measurements and their dependence on the pump wavelength. However, such findings are inconclusive and sometimes contradictory. In this study, we compare internal conversion dynamics in [Formula: see text]-carotene, pumped at the first, second, and third vibronic progression peak...
July 24, 2017: Photosynthesis Research
https://www.readbyqxmd.com/read/28737930/self-collapse-lithography
#9
Chuanzhen Zhao, Xiaobin Xu, Qing Yang, Tianxing Man, Steven Jonas, Jeffrey J Schwartz, Anne M Andrews, Paul S Weiss
We report a facile, high-throughput soft lithography process that utilizes nanoscale channels formed naturally at the edges of microscale relief features on soft, elastomeric stamps. Upon contact with self-assembled monolayer (SAM) functionalized substrates, the roof of the stamp collapses, resulting in the selective removal of SAM molecules via a chemical lift-off process. With this technique, which we call self-collapse lithography (SCL), sub-30-nm patterns were achieved readily using masters with microscale features prepared by conventional photolithography...
July 24, 2017: Nano Letters
https://www.readbyqxmd.com/read/28737219/impacts-of-hydraulic-redistribution-on-grass-tree-competition-vs-facilitation-in-a-semi-arid-savanna
#10
Greg A Barron-Gafford, Enrique P Sanchez-Cañete, Rebecca L Minor, Sean M Hendryx, Esther Lee, Leland F Sutter, Newton Tran, Elizabeth Parra, Tony Colella, Patrick C Murphy, Erik P Hamerlynck, Praveen Kumar, Russell L Scott
A long-standing ambition in ecosystem science has been to understand the relationship between ecosystem community composition, structure and function. Differential water use and hydraulic redistribution have been proposed as one mechanism that might allow for the coexistence of overstory woody plants and understory grasses. Here, we investigated how patterns of hydraulic redistribution influence overstory and understory ecophysiological function and how patterns vary across timescales of an individual precipitation event to an entire growing season...
July 24, 2017: New Phytologist
https://www.readbyqxmd.com/read/28734810/retinal-pigment-epithelium-humps-in-high-myopia
#11
Alessandro Marchese, Adriano Carnevali, Riccardo Sacconi, Teresa Centoducati, Lea Querques, Francesco Bandello, Giuseppe Querques
PURPOSE: To report on the presence of retinal pigment epithelium (RPE) humps in high myopia, and to describe the distinctive features from pathological PEDs and choroidal neovascularizations (CNVs). DESIGN: Retrospective cross-sectional study. METHODS: Charts and imaging studies of highly myopic patients presenting between September 2015 and February 2017 at a university teaching hospital were consecutively reviewed. All patients underwent spectral domain optical coherence tomography (OCT)...
July 19, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28734706/emerging-minimally-invasive-treatment-options-for-male-lower-urinary-tract-symptoms
#12
REVIEW
Giuseppe Magistro, Christopher R Chapple, Mostafa Elhilali, Peter Gilling, Kevin T McVary, Claus G Roehrborn, Christian G Stief, Henry H Woo, Christian Gratzke
CONTEXT: Lower urinary tract symptoms (LUTS) are one of the most common and troublesome nonmalignant conditions affecting quality of life in aging men. A spectrum of established medical and surgical options is available to provide relief of bothersome LUTS. Both the adverse events of medication and the morbidity with surgical treatment modalities have to be counterbalanced against efficacy. Novel minimally invasive treatment options aim to be effective, ideally to be performed in an ambulatory setting under local anaesthesia and to offer a more favourable safety profile than existing reference techniques...
July 19, 2017: European Urology
https://www.readbyqxmd.com/read/28733722/non-specific-chronic-low-back-pain-differences-in-spinal-kinematics-in-subgroups-during-functional-tasks
#13
Rebecca Hemming, Liba Sheeran, Robert van Deursen, Valerie Sparkes
PURPOSE: A multidimensional classification approach suggests that motor control impairment subgroups exist in non-specific chronic low back pain (NSCLBP). Differences in sitting lumbar posture have been identified between two such subgroups [flexion pattern (FP) and active extension pattern (AEP)] and healthy individuals; however, functional spinal movement has not been explored. This study will evaluate whether NSCLBP subgroups exhibit regional spinal kinematic differences, compared to healthy individuals, during functional tasks...
July 21, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28733649/an-in-vitro-model-for-the-ocular-surface-and-tear-film-system
#14
Qiaozhi Lu, Hongbo Yin, Michael P Grant, Jennifer H Elisseeff
Dry eye is a complicated ocular surface disease whose exact pathogenesis is not yet fully understood. For the therapeutic evaluation and pathogenesis study of dry eye, we established an in vitro three-dimensional (3D) coculture model for the ocular surface. It is composed of rabbit conjunctival epithelium and lacrimal gland cell spheroids, and recapitulates the aqueous and mucin layers of the tear film. We first investigated the culture conditions for both cell types to optimize their secretory functions, by employing goblet cell enrichment, air-lifting culture, and 3D spheroid formation techniques...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728320/temple-and-postauricular-dissection-in-face-and-neck-lift-surgery
#15
Joo Heon Lee, Tae Suk Oh, Sung Wan Park, Jae Hoon Kim, Tanvaa Tansatit
Periauricular paresthesia may afflict patients for a significant amount of time after facelift surgery. When performing face and neck lift surgery, temple and posterior auricular flap dissection is undertaken directly over the auriculotemporal, great auricular, and lesser occipital nerve territory, leading to potential damage to the nerve. The auriculotemporal nerve remains under the thin outer superficial fascia just below the subfollicular level in the prehelical area. To prevent damage to the auriculotemporal nerve and to protect the temporal hair follicle, the dissection plane should be kept just above the thin fascia covering the auriculotemporal nerve...
July 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28727649/variables-affecting-intra-abdominal-pressure-during-lifting-in-the-early-postpartum-period
#16
Yvonne Hsu, Robert Hitchcock, Stefan Niederauer, Ingrid E Nygaard, Janet M Shaw, Xiaoming Sheng
OBJECTIVES: Intra-abdominal pressure (IAP) may contribute to pelvic floor health, although the direction and magnitude of such an effect, if any, are not yet known. Identifying individual characteristics, and in particular modifiable factors, associated with higher IAP during recovery from vaginal childbirth might serve to mitigate early pelvic floor dysfunction. The aim of this study was to identify characteristics associated with maximal IAP during lifting in postpartum primiparous women who delivered vaginally...
July 20, 2017: Female Pelvic Medicine & Reconstructive Surgery
https://www.readbyqxmd.com/read/28723817/a-systematic-review-of-the-effects-of-resistance-training-on-body-image
#17
Nicholas J SantaBarbara, James W Whitworth, Joseph T Ciccolo
The purpose of this systematic review was to identify and appraise the literature that has specifically tested the independent effects of resistance training (i.e., weight lifting) on body image in adults. A comprehensive search through December 2016 of electronic databases PubMed, Scopus, PsycNET, and Web of Science for relevant studies published in peer-reviewed journals was conducted, and PRISMA guidelines were followed. Inclusion criteria were that a study had to be: a) written in English; b) published in a peer-reviewed journal; c) conducted an assessment of body image using a validated scale before and after a stand-alone resistance training intervention (i...
July 17, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28720907/top-down-fabrication-and-enhanced-active-area-electronic-characteristics-of-amorphous-oxide-nanoribbons-for-flexible-electronics
#18
Hyun-June Jang, Ki Joong Lee, Kwang-Won Jo, Howard E Katz, Won-Ju Cho, Yong-Beom Shin
Inorganic amorphous oxide semiconductor (AOS) materials such as amorphous InGaZnO (a-IGZO) possess mechanical flexibility and outstanding electrical properties, and have generated great interest for use in flexible and transparent electronic devices. In the past, however, AOS devices required higher activation energies, and hence higher processing temperatures, than organic ones to neutralize defects. It is well known that one-dimensional nanowires tend to have better carrier mobility and mechanical strength along with fewer defects than the corresponding two-dimensional films, but until now it has been difficult, costly, and impractical to fabricate such nanowires in proper alignments by either "bottom-up" growth techniques or by "top-down" e-beam lithography...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28719761/rehabilitation-and-postoperative-management-practices-after-osteochondral-allograft-transplants-to-the-distal-femur-a-report-from-the-metrics-of-osteochondral-allografts-moca-study-group-2016-survey
#19
Marie S Kane, Karlee Lau, Dennis C Crawford
CONTEXT: We present the current spectrum of postoperative management practices for patients receiving distal femur osteochondral allograft (OCA) transplants. EVIDENCE ACQUISITION: The Joint Restoration Foundation database was examined in cooperation with the Metrics of Osteochondral Allografts study group to identify 121 surgeons who had performed at least 1 OCA transplant in the past year; 63% of surgeons responded. STUDY DESIGN: Clinical survey...
July 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28719393/restrictions-and-limitations-after-pelvic-floor-surgery-what-s-the-evidence
#20
Miles Murphy
PURPOSE OF REVIEW: A common concern regarding pelvic floor surgery is the relatively high risk of recurrence. In an effort to minimize this risk, many surgeons instruct their patients to avoid certain activities during the healing process so as not to damage the repair before proper healing has occurred. However, many of these restrictions have been historically based on little to no hard evidence. The purpose of this review is to present the latest evidence-based recommendations regarding restrictions and limitations after pelvic floor surgery...
July 17, 2017: Current Opinion in Obstetrics & Gynecology
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