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https://www.readbyqxmd.com/read/28346938/star-formation-inside-a-galactic-outflow
#1
R Maiolino, H R Russell, A C Fabian, S Carniani, R Gallagher, S Cazzoli, S Arribas, F Belfiore, E Bellocchi, L Colina, G Cresci, W Ishibashi, A Marconi, F Mannucci, E Oliva, E Sturm
Recent observations have revealed massive galactic molecular outflows that may have the physical conditions (high gas densities) required to form stars. Indeed, several recent models predict that such massive outflows may ignite star formation within the outflow itself. This star-formation mode, in which stars form with high radial velocities, could contribute to the morphological evolution of galaxies, to the evolution in size and velocity dispersion of the spheroidal component of galaxies, and would contribute to the population of high-velocity stars, which could even escape the galaxy...
March 27, 2017: Nature
https://www.readbyqxmd.com/read/28345788/horticultural-activity-predicts-later-localized-limb-status-in-a-contemporary-pre-industrial-population
#2
Jonathan Stieglitz, Benjamin C Trumble, Hillard Kaplan, Michael Gurven
OBJECTIVES: Modern humans may have gracile skeletons due to low physical activity levels and mechanical loading. Tests using pre-historic skeletons are limited by the inability to assess behavior directly, while modern industrialized societies possess few socio-ecological features typical of human evolutionary history. Among Tsimane forager-horticulturalists, we test whether greater activity levels and, thus, increased loading earlier in life are associated with greater later-life bone status and diminished age-related bone loss...
March 27, 2017: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/28345405/thickness-distribution-of-glenohumeral-joint-cartilage
#3
Christoph Schleich, Bernd Bittersohl, Gerald Antoch, Rüdiger Krauspe, Christoph Zilkens, Jörn Kircher
High-resolution 3-dimensional cartilage-specific magnetic resonance imaging (MRI) was performed at 3 T to test the following hypotheses: (1) there is a nonuniform cartilage thickness distribution both on the proximal humerus and on the glenoid surface and (2) the glenohumeral joint as a combined system is congruent with the level of the joint cartilage surface without substantial radial mismatch. Inclusion of 38 volunteers (19 females, mean age 24.34 ± 2.22 years; range 21-29 years) in a prospective study...
April 2017: Cartilage
https://www.readbyqxmd.com/read/28344570/tanycytes-as-regulators-of-seasonal-cycles-in-neuroendocrine-function
#4
REVIEW
Jo E Lewis, Francis J P Ebling
Annual cycles of physiology and behavior are highly prevalent in organisms inhabiting temperate and polar regions. Examples in mammals include changes in appetite and body fat composition, hibernation and torpor, growth of antlers, pelage and horns, and seasonal reproduction. The timing of these seasonal cycles reflects an interaction of changing environmental signals, such as daylength, and intrinsic rhythmic processes: circannual clocks. As neuroendocrine signals underlie these rhythmic processes, the focus of most mechanistic studies has been on neuronal systems in the hypothalamus...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28344538/surgical-excision-of-mycosis-fungoides-using-thumb-sparing-reconstruction
#5
Giancarlo McEvenue, Ashley Kim, Paul Binhammer
Background: The differential for soft tissue tumors of the hand and upper limb is broad. Hematologic malignancy remains quite low on the differential for soft tissue tumors involving the hand, and there is little in the literature describing surgical management of such cutaneous manifestations. When the tumor is large or involves the thumb, careful consideration of reconstructive options is required. Methods: We present a rare case of an aggressively enlarging mycosis fungoides, a cutaneous T-cell lymphoma tumor, involving the thumb...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344527/reverse-radial-forearm-flap-to-provide-arterial-inflow-to-a-toe-transfer
#6
Joohak Kim, Alfred P Yoon, Neil F Jones
Background: Toe-to-thumb transfer has become the gold standard for thumb reconstruction, but in badly mutilated hands, additional soft tissue coverage may be required or a suitable recipient artery may not be available. There are only 3 case reports describing the successful use of a reverse radial forearm flap for coverage of a soft tissue defect around the thumb as well as providing arterial inflow for a toe transfer, performed either simultaneously or secondarily. Methods: A single surgeon's experience of all toe-to-hand transfers performed in conjunction with a reverse radial forearm flap between 1995 and 2014 was reviewed, including patient demographics, type of toe transfer and vascular pedicle, whether immediate or secondary, follow-up, and complications...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344525/mri-correlation-of-radial-head-fractures-and-forearm-injuries
#7
Hisham Awan, Robert Goitz
Background: Radial head fractures can be associated with soft tissue injuries of the forearm and wrist. The Essex-Lopresti injury can lead to significant morbidity, especially if the diagnosis is not made acutely. Better identification of such injuries is needed to allow optimal surgical treatment and prevent long-term sequelae. We used magnetic resonance imaging (MRI) to correlate the degree of soft tissue injuries with radial head fractures. Methods: Sixteen pairs of forearms with an associated radial head fracture in 15 patients prospectively underwent an MRI within 2 weeks of their injury...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344523/scaphoid-nonunion-with-poor-prognostic-factors-the-role-of-the-free-medial-femoral-condyle-vascularized-bone-graft
#8
Tahseen Chaudhry, Lauren Uppal, Dominic Power, Michael Craigen, Simon Tan
Background: To report on the results of free medial femoral condyle (MFC) vascularized bone graft for scaphoid nonunions with 1 or more poor prognostic factors. Methods: We have used the free MFC vascularized bone graft for scaphoid nonunions that have 1 or more factors associated with a poor prognosis. These were, a delay in presentation of over 5 years, a proximal pole nonunion, the presence of avascular necrosis (AVN), or previous nonunion surgery. We used this technique on 20 patients over a 4.5-year period...
March 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28344331/basis-neutral-hilbert-space-analyzers
#9
Lane Martin, Davood Mardani, H Esat Kondakci, Walker D Larson, Soroush Shabahang, Ali K Jahromi, Tanya Malhotra, A Nick Vamivakas, George K Atia, Ayman F Abouraddy
Interferometry is one of the central organizing principles of optics. Key to interferometry is the concept of optical delay, which facilitates spectral analysis in terms of time-harmonics. In contrast, when analyzing a beam in a Hilbert space spanned by spatial modes - a critical task for spatial-mode multiplexing and quantum communication - basis-specific principles are invoked that are altogether distinct from that of 'delay'. Here, we extend the traditional concept of temporal delay to the spatial domain, thereby enabling the analysis of a beam in an arbitrary spatial-mode basis - exemplified using Hermite-Gaussian and radial Laguerre-Gaussian modes...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28344085/protection-of-polyphenols-in-blueberry-juice-by-vacuum-assisted-block-freeze-concentration
#10
Patricio Orellana-Palma, Guillermo Petzold, Lissage Pierre, José Manuel Pensaben
Block freeze concentration allows produces high-quality cryoconcentrates with important protection of valuable components from fresh fruit juices. The aim of this study was to investigate the use of vacuum-assisted block freeze concentration under different experimental conditions to protect polyphenols in the elaboration of concentrated blueberry juice. Fresh blueberry juice was radial or unidirectional frozen at -20 and -80 °C for 12 h and vacuum process was performed at 80 kPa during 120 min. Results showed a significant solute increased in the concentrated fraction in all treatments, and the best treatment was - 20 °C/unidirectional with a value of ≈63 °Brix, equivalent to an increase of 3...
March 23, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28343853/factors-influencing-functional-outcome-of-proximal-interphalangeal-joint-collateral-ligament-injury-when-treated-with-buddy-strapping-and-exercise
#11
Young Hak Roh, Young Do Koh, Jae Yun Go, Jung Ho Noh, Hyun Sik Gong, Goo Hyun Baek
STUDY DESIGN: Prospective cohort. INTRODUCTION AND PURPOSE: This study evaluates the factors influencing treatment outcomes of proximal interphalangeal (PIP) joint collateral ligament injuries when treated with buddy strapping. METHODS: Sixty-seven patients treated with buddy strapping for a PIP joint injury were enrolled. The finger range of motion (ROM), grip strength, and a Quick Disability of the Arm, Shoulder, and Hand (QuickDASH) score were assessed at 3 and 6 months after the initial injury...
March 23, 2017: Journal of Hand Therapy: Official Journal of the American Society of Hand Therapists
https://www.readbyqxmd.com/read/28343824/assessment-of-corrosion-fretting-and-material-loss-of-retrieved-modular-total-knee-arthroplasties
#12
Audrey J Martin, Kirsten A Seagers, Douglas W Van Citters
BACKGROUND: Modular junctions in total hip arthroplasties have been associated with fretting, corrosion, and debris release. The purpose of this study is to analyze damage severity in total knee arthroplasties of a single design by qualitative visual assessment and quantitative material loss measurements to evaluate implant performance and patient impact via material loss. METHODS: Twenty-two modular knee retrievals of the same manufacturer were identified from an institutional review board-approved database...
February 28, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28343808/an-anatomic-evaluation-of-arthroscopic-access-to-the-radial-head
#13
Jonathan D Hodax, Travis D Blood, Dominic T Kleinhenz, Megan Gorman, Alison Biercevicz, Manuel DaSilva
PURPOSE: To determine the area of the radial head accessible for visualization and screw placement from the standard anteromedial and anterolateral portals used in elbow arthroscopy. METHODS: Five cadaveric elbows were arthroscopically evaluated using standard anteromedial and anterolateral portals. Markers (pins) were placed into the accessible portions of the radial head at maximal pronation and supination. Specimens were then evaluated by computed tomography, and the arc of the radial head accessible from each portal was determined...
March 23, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28343235/transcription-dependent-radial-distribution-of-tcf7l2-regulated-genes-in-chromosome-territories
#14
Keyvan Torabi, Darawalee Wangsa, Immaculada Ponsa, Markus Brown, Anna Bosch, Maria Vila-Casadesús, Tatiana S Karpova, Maria Calvo, Antoni Castells, Rosa Miró, Thomas Ried, Jordi Camps
Human chromosomes occupy distinct territories in the interphase nucleus. Such chromosome territories (CTs) are positioned according to gene density. Gene-rich CTs are generally located in the center of the nucleus, while gene-poor CTs are positioned more towards the nuclear periphery. However, the association between gene expression levels and the radial positioning of genes within the CT is still under debate. In the present study, we performed three-dimensional fluorescence in situ hybridization experiments in the colorectal cancer cell lines DLD-1 and LoVo using whole chromosome painting probes for chromosomes 8 and 11 and BAC clones targeting four genes with different expression levels assessed by gene expression arrays and RT-PCR...
March 25, 2017: Chromosoma
https://www.readbyqxmd.com/read/28342884/oral-cancer-reconstruction-using-the-supraclavicular-artery-island-flap-comparison-to-free-radial-forearm-flap
#15
Christian Welz, Martin Canis, Sabina Schwenk-Zieger, Jennifer L Spiegel, Bernhard G Weiß, Yiannis Pilavakis
PURPOSE: To evaluate whether the pedicled supraclavicular artery island flap (SCAIF) is a sufficient alternative to the fasciocutaneous radial forearm free flap (RFFF) for oral reconstruction in cancer surgery. PATIENTS AND METHODS: The authors designed and implemented a retrospective cohort study composed of all consecutive patients who underwent head and neck reconstruction after cancer surgery at their tertiary university hospital from 2013 to 2016. Demographics and peri- and postoperative information were recorded and statistically analyzed...
March 2, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28342252/the-arm-has-it-adventures-in-right-heart-and-radial-approaches
#16
EDITORIAL
Richard R Heuser
No abstract text is available yet for this article.
March 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28342249/-cognitive-radial-access
#17
EDITORIAL
Nayef Abouzaki, George W Vetrovec
No abstract text is available yet for this article.
March 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28342212/high-speed-whole-brain-oximetry-by-golden-angle-radial-mri
#18
Wen Cao, Yulin V Chang, Erin K Englund, Hee Kwon Song, Suliman Barhoum, Zachary B Rodgers, Michael C Langham, Felix W Wehrli
PURPOSE: To determine whole-brain cerebral metabolic rate of oxygen (CMRO2 ), an improved imaging approach, based on radial encoding, termed radial OxFlow (rOxFlow), was developed to simultaneously quantify draining vein venous oxygen saturation (SvO2 ) and total cerebral blood flow (tCBF). METHODS: To evaluate the efficiency and precision of the rOxFlow sequence, 10 subjects were studied during a paradigm of repeated breath-holds with both rOxFlow and Cartesian OxFlow (cOxFlow) sequences...
March 25, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28341967/new-organ-based-tube-current-modulation-method-to-reduce-the-radiation-dose-during-computed-tomography-of-the-head-evaluation-of-image-quality-and-radiation-dose-to-the-eyes-in-the-phantom-study
#19
Jung-Su Kim, Soon-Mu Kwon, Jung-Min Kim, Sang-Wook Yoon
A new organ-based tube current modulation (NOB-TCM) method was designed with the intent to decrease tube current by 30% over a prescribed 90° radial arc across the anterior aspect of the radiosensitive organ, without increasing tube current in the remaining radial arc. We compared a reference scan and five other dose-reducing methods with regard to effects on dose, practicality, and image quality to determine the most effective method for the reduction of the radiation dose to the eyes during CT examinations of the head...
March 24, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28341879/intra-articular-findings-in-symptomatic-minor-instability-of-the-lateral-elbow-smile
#20
Paolo Arrigoni, Davide Cucchi, Riccardo D'Ambrosi, Usman Butt, Marc R Safran, Patrick Denard, Pietro Randelli
PURPOSE: Lateral epicondylitis is generally considered an extra-articular condition. The role of minor instability in the aetiology of lateral elbow pain has rarely been considered. The aim of this study was to evaluate the correlation of lateral ligamentous laxity with aspects of intra-articular lateral elbow pathology and investigate the role of minor instability in lateral elbow pain. METHODS: Thirty-five consecutive patients aged between 20 and 60 years with recalcitrant lateral epicondylitis who had failed conservative therapy and had no previous trauma or overt instability, were included...
March 24, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
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