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https://www.readbyqxmd.com/read/27936048/linear-in-the-parameters-oblique-least-squares-lols-provides-more-accurate-estimates-of-density-dependent-survival
#1
Vasco M N C S Vieira, Aschwin H Engelen, Oscar R Huanel, Marie-Laure Guillemin
Survival is a fundamental demographic component and the importance of its accurate estimation goes beyond the traditional estimation of life expectancy. The evolutionary stability of isomorphic biphasic life-cycles and the occurrence of its different ploidy phases at uneven abundances are hypothesized to be driven by differences in survival rates between haploids and diploids. We monitored Gracilaria chilensis, a commercially exploited red alga with an isomorphic biphasic life-cycle, having found density-dependent survival with competition and Allee effects...
2016: PloS One
https://www.readbyqxmd.com/read/27935599/magnetic-resonance-imaging-of-the-functional-anatomy-of-the-superior-oblique-muscle-in-patients-with-primary-superior-oblique-overaction
#2
Q Gong, M Janowski, H Tang, Q Yang, H Wei, X Zhou, L Liu
PurposeTo quantitatively determine the size and contractility of the superior oblique (SO) muscle in primary SO overaction (PSOOA).Patients and methodsA prospective, observational study was conducted on 12 patients with PSOOA, and 10 healthy, orthotropic subjects. Sets of contiguous, 2 mm slice thickness, quasi-coronal magnetic resonance imaging were obtained during different gazes, giving pixel resolution of 0.391 mm. Cross-sectional areas of the SO muscles were determined in primary position, supraduction, and infraduction to evaluate size and contractility...
December 9, 2016: Eye
https://www.readbyqxmd.com/read/27932308/reaching-to-virtual-targets-the-oblique-effect-reloaded-in-3-d
#3
Christos Kaspiris-Rousellis, Constantinos Siettos, Ioannis Evdokimidis, Nikolaos Smyrnis
Perceiving and reproducing direction of visual stimuli in 2-D space produces the visual oblique effect, which manifests as increased precision in the reproduction of cardinal compared to oblique directions. A second cognitive oblique effect emerges when stimulus information is degraded (such as when reproducing stimuli from memory) and manifests as a systematic distortion where reproduced directions close to the cardinal axes deviate towards the oblique, leading to space expansion at cardinal and contraction at oblique axes...
December 5, 2016: Neuroscience
https://www.readbyqxmd.com/read/27930445/motion-and-muscle-activity-are-affected-by-instability-location-during-a-squat-exercise
#4
Brian C Nairn, Chad A Sutherland, Janessa D M Drake
Squat exercise training using instability devices have become increasingly popular for a multitude of reasons. Many devices generate instability at the feet and provide a bottom-up perturbation; however, the effect of a top-down instability device during a squat remains unclear. In order to induce instability at the upper body, a water-filled cylinder called the Attitube® was used. This study analyzed the effects of instability location (top-down, bottom-up, no instability) during a squat exercise in terms of kinematics and muscle activation...
November 19, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27930425/the-gracillimus-orbitis-muscle
#5
David R Jordan, Bazil Stoica
The gracillimus orbitis muscle is an anomalous, accessory, or supernumerary extraocular muscle that, although is rarely seen clinically in the human orbit, has been identified in 5% to 14% of dissected cadaver orbits. It arises from the medial surface of the levator near its origin and runs forward between the levator and superior oblique muscles resembling one of the other extraocular muscles. More anteriorly, it becomes thinner, less well defined, and mostly fibrous. Its major insertion is into the fascia surrounding the trochlea, while other fibers may travel to the supratrochlear artery, intermuscular septum, the levator or medial rectus muscle, and the fascia surrounding the superior ophthalmic vein...
December 7, 2016: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/27929484/dosimetric-assessment-of-brass-mesh-bolus-for-postmastectomy-photon-radiotherapy
#6
Ryan Manger, Adam Paxton, Laura Cerviño
Brass mesh bolus has been shown to be an acceptable substitute for tissue-equivalent bolus to increase superficial dose for chest wall tangent photon radiotherapy. This work investigated the increase in surface dose, the change in the dose at depth, and the safety implications of higher energy photon beams when using brass mesh bolus for postmastectomy chest wall radiotherapy. A photon tangent plan was delivered to a thorax phantom, and the superficial dose ranged from 40%-72% of prescription dose with no bolus...
July 25, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27928445/surgical-treatment-using-the-unit-rod-in-children-with-neuromuscular-scoliosis
#7
Nedelcu T, Georgescu I, Leroux J, Lechevallier J, Barbilian A, Tuhar I
The article represents a retrospective clinical and radiological study. Objective. To assess the safety and the stability in time of the Unit Rod instrumentation in the treatment of severe neuromuscular scoliosis in children and adolescents. Summary. The treatment of patients with neuromuscular scoliosis always represents a challenge. The patients are debilitated and usual interventions are very long with great loss of blood. Serious complications can compromise the result of the surgery. The technique we used (the Unit Rod) is worldwide recognized, is simple, and gives excellent stability with a low rate of complications...
October 2016: Journal of Medicine and Life
https://www.readbyqxmd.com/read/27927507/sacral-alar-iliac-fixation-in-pediatric-deformity-radiographic-outcomes-and-complications
#8
Amit Jain, Khaled M Kebaish, Paul D Sponseller
STUDY DESIGN: Retrospective case series. OBJECTIVES: To assess the radiographic outcomes and complications of sacral-alar-iliac (SAI) fixation in children. SUMMARY OF BACKGROUND DATA: Pelvic fixation in children undergoing spinal deformity surgery can be challenging because of complex anatomy, compound biomechanical forces at the lumbosacral junction, and poor bone quality. METHODS: Radiographic and clinical records of 80 consecutive patients aged 18 years or younger who underwent posterior spinal fusion surgery with SAI fixation by one pediatric orthopedic surgeon and who had a minimum 2 years of follow-up (mean follow-up: 3...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27927506/correction-of-pelvic-obliquity-after-spinopelvic-fixation-in-children-with-cerebral-palsy-a-comparison-study-with-minimum-two-year-follow-up
#9
Oussama Abousamra, Tristan Nishnianidze, Kenneth J Rogers, Ilhan A Bayhan, Petya Yorgova, Suken A Shah
STUDY DESIGN: Single institution cohort data were collected prospectively and reviewed retrospectively. OBJECTIVES: This study aims to compare outcomes among three different instrumentation types: unit rod, iliac screws, and sacral alar iliac (SAI) screws in terms of pelvic obliquity correction in children with cerebral palsy (CP). SUMMARY OF BACKGROUND DATA: The optimal choice for spinopelvic fixation in CP scoliosis with pelvic obliquity is controversial...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27927505/outcomes-of-pelvic-fixation-in-growing-rod-constructs-an-analysis-of-patients-with-a-minimum-of-4-years-of-follow-up
#10
Jaysson T Brooks, Amit Jain, Francisco Sanchez-Perez-Grueso, David L Skaggs, George H Thompson, Behrooz A Akbarnia, Paul D Sponseller
STUDY DESIGN: Retrospective review. OBJECTIVE: To evaluate which distal anchors in growing rod (GR) constructs optimally correct major curve, pelvic obliquity, sagittal alignment, T1-S1 length, thoracic kyphosis, and lumbar lordosis with the fewest complications at 4 or more years' postoperative follow-up. SUMMARY OF BACKGROUND DATA: Pelvic fixation to the ilium and/or sacrum in GR constructs is used to treat patients with early-onset scoliosis...
May 2016: Spine Deformity
https://www.readbyqxmd.com/read/27924416/endoscope-assisted-oblique-lumbar-interbody-fusion-for-the-treatment-of-cauda-equina-syndrome-a-technical-note
#11
Jin-Sung Kim, Ji-Hoon Seong
OBJECTIVE: The goal of this paper was to describe how endoscope-assisted oblique lumbar interbody fusion (OLIF) could remove huge lumbar disc herniation (HLDH) manifested with cauda equina syndrome (CES). METHODS: In this study, the authors made an attempt to treat CES with a direct endoscopic decompression through the OLIF corridor and performed OLIF in two patients with HLDH. RESULTS: Two patients with HLDH were successfully treated using OLIF with spinal endoscopic discectomy...
December 7, 2016: European Spine Journal
https://www.readbyqxmd.com/read/27922577/is-it-in-or-out-the-optimal-fluoroscopic-views-for-intraoperative-determination-of-proper-lateral-mass-screw-placement
#12
Sang Bum Kim, John M Rhee, Byung Hak Oh, You Gun Won, Yousun Jung, Kun Young Park, William C Hutton, Chulmin Kim
STUDY DESIGN: Cadaveric OBJECTIVE.: Determine optimal fluoroscopic views for detecting cervical lateral mass screw (LMS) violations SUMMARY OF BACKGROUND DATA.: Single plane intraoperative xrays are commonly used but frequently inadequate due to its complex trajectory. Fluoroscopy can be taken in multiple planes, but the ideal fluoroscopic view to assess malposition is not known: depending on the view, any given screw may look "in" or "out". METHODS: C3-6 LMS were inserted in 3 cadavers...
December 2, 2016: Spine
https://www.readbyqxmd.com/read/27921328/comprehensive-profile-of-bilateral-astigmatism-rule-similarity-and-symmetry-patterns-of-the-axes-in-the-fellow-eyes
#13
Amir Asharlous, Mehdi Khabazkhoob, Abbasali Yekta, Hassan Hashemi
PURPOSE: To study rule similarity (isorule or anisorule) and symmetry patterns of axes (direct and mirror) in bilateral astigmatism. METHODS: Six years of data were collected from four ophthalmology clinics in Tehran. After applying the exclusion criteria (having eye disease or history of ocular surgery), final analyses were performed on data of 160 608 cases whose mean age was 39.2 ± 15.4 years (10-80 years) and 53.7% female. All subjects had autorefraction, retinoscopy, and subjective refraction data...
December 5, 2016: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/27921157/assessment-of-pisotriquetral-misalignment-with-magnetic-resonance-imaging-is-it-associated-with-trauma
#14
Hee-Dong Chae, Hye Jin Yoo, Sung Hwan Hong, Ja-Young Choi, Heung Sik Kang
OBJECTIVE: Our objective was to determine whether there is an association between pisotriquetral (PT) malalignment and acute distal radius fracture by using magnetic resonance imaging (MRI). METHODS: We evaluated 138 patients who underwent 3-T MRI of the wrists. Group A comprised 85 patients with acute distal radius fracture, and group B comprised 53 patients without trauma. PT interval and angle and pisiform excursion were measured on oblique axial and sagittal multiplanar reformats...
December 5, 2016: European Radiology
https://www.readbyqxmd.com/read/27920631/invasive-lobular-carcinoma-of-the-breast-appearance-on-digital-breast-tomosynthesis
#15
Ahuva Grubstein, Yael Rapson, Sara Morgenstern, Itai Gadiel, Amit Haboosheh, Rinat Yerushalmi, Maya Cohen
BACKGROUND: The aim of this study was to characterize the signs of invasive lobular carcinoma of the breast on digital breast tomosynthesis (DBT) imaging. PATIENTS AND METHODS: The study group included 23 women with pathologically proven invasive lobular carcinoma of the breast for whom both digital mammography (DM) and DBT images were available. The images were read jointly by 2 experienced breast radiologists. Findings were recorded according to the descriptors in the Breast Imaging and Reporting Data System lexicon and correlated with the detailed pathology results...
October 2016: Breast Care
https://www.readbyqxmd.com/read/27920492/flap-double-twist-technique-for-prevention-of-lasik-flap-striae
#16
Karim Mahmoud Nabil
A novel flap double twist technique was applied to reduce the incidence of post-laser-assisted in situ keratomileusis (LASIK) flap striae. The flap is floated and stroked in the same way as is done for management of first postoperative day striae, where the method is to float and irrigate the flap into position, followed by applying gentle pressure on the flap with a wet Merocel microsponge and moving the flap away from the hinge position. The sponge is then manually squeezed to become drier, and the flap is continuously stroked in a direction opposite to the hinge...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27919924/gradual-vs-abrupt-reduction-of-carpels-in-syncarpous-gynoecia-a-case-study-from-polyscias-subg-arthrophyllum-araliaceae-apiales
#17
Polina V Karpunina, Alexei A Oskolski, Maxim S Nuraliev, Porter P Lowry, Galina V Degtjareva, Tahir H Samigullin, Carmen M Valiejo-Roman, Dmitry D Sokoloff
PREMISE OF THE STUDY: Revealing the relative roles of gradual and abrupt transformations of morphological characters is an important topic of evolutionary biology. Gynoecia apparently consisting of one carpel have evolved from pluricarpellate syncarpous gynoecia in several angiosperm clades. The process of reduction can involve intermediate stages, with one fertile and one or more sterile carpels (pseudomonomery). The possible origin of monomery directly via an abrupt change of gynoecium merism has been a matter of dispute...
December 5, 2016: American Journal of Botany
https://www.readbyqxmd.com/read/27919673/proximal-tibial-anterior-open-wedge-oblique-osteotomy-a-novel-technique-to-correct-genu-recurvatum
#18
Tae Woo Kim, Sahnghoon Lee, Jung-Ro Yoon, Hyuk-Soo Han, Myung Chul Lee
BACKGROUND: For successful acute correction of genu recurvatum, accurate correction of plateau angle, restoration of anatomical axis, rigid fixation, and preservation of patellar height are essential. However, a surgical treatment that satisfies all these conditions has not yet been established. The purpose of this study was to evaluate the novel technique of proximal tibial anterior open-wedge oblique osteotomy (PT-AOWOO) for the treatment of genu recurvatum. METHODS: Five patients with genu recurvatum underwent PT-AOWOO from 2008 to 2013...
December 2, 2016: Knee
https://www.readbyqxmd.com/read/27918903/a-confirmatory-factor-analysis-of-the-utrecht-work-engagement-scale-for-students-in-a-chinese-sample
#19
Lina Meng, Yi Jin
BACKGROUND: Educational institutions play an important role in encouraging students' engagement with course work. Educators are finding instruments to measure students' engagement in order to develop strategies to improve it. Little is known about the factor structure of the Utrecht Work Engagement Scale for Students among Chinese nursing students. OBJECTIVES: The aim of this research was to examine the factor structure of the Utrecht Work Engagement Scale for Students via confirmatory factor analysis...
November 26, 2016: Nurse Education Today
https://www.readbyqxmd.com/read/27917664/abdominal-wall-ectopic-testis-torsion-mimicking-a-spigelian-hernia-in-an-adult
#20
M Natarajan, H M Alnajjar, C I Woodward, M Tshuma, T Marshall, M Rochester
We report an unusual case of an ectopic testis identified in a 37-year-old man presenting with acute severe right iliac fossa pain and an irreducible mass. Initially diagnosed as a Spigelian hernia, computed tomography and ultrasonography identified the presence of an ectopic testis in the abdominal wall. Interparietal testicular ectopia is an extremely rare condition. We present and discuss the first case in the literature of an ectopic testis located between the internal and external oblique muscle layers of the anterior abdominal wall in an adult...
December 5, 2016: Annals of the Royal College of Surgeons of England
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