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https://www.readbyqxmd.com/read/28538695/a-new-calibration-method-for-commercial-rgb-d-sensors
#1
Walid Darwish, Shenjun Tang, Wenbin Li, Wu Chen
Commercial RGB-D sensors such as Kinect and Structure Sensors have been widely used in the game industry, where geometric fidelity is not of utmost importance. For applications in which high quality 3D is required, i.e., 3D building models of centimeter‑level accuracy, accurate and reliable calibrations of these sensors are required. This paper presents a new model for calibrating the depth measurements of RGB-D sensors based on the structured light concept. Additionally, a new automatic method is proposed for the calibration of all RGB-D parameters, including internal calibration parameters for all cameras, the baseline between the infrared and RGB cameras, and the depth error model...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538682/enteric-viruses-and-fecal-bacteria-indicators-to-assess-groundwater-quality-and-suitability-for-irrigation
#2
Osvalda De Giglio, Giuseppina Caggiano, Francesco Bagordo, Giovanna Barbuti, Silvia Brigida, Federica Lugoli, Tiziana Grassi, Giuseppina La Rosa, Luca Lucentini, Vito Felice Uricchio, Antonella De Donno, Maria Teresa Montagna
According to Italian Ministerial Decree No. 185 of 12 June 2003, water is considered suitable for irrigation if levels of fecal bacteria (i.e., Escherichia coli and Salmonella) are within certain parameters. The detection of other microorganisms is not required. The aim of this study is to determine the bacteriological quality of groundwater used for irrigation and the occurrence of enteric viruses (Norovirus, Enterovirus, Rotavirus, Hepatovirus A), and to compare the presence of viruses with the fecal bacteria indicators...
May 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28538681/human-thalamic-somatosensory-nucleus-ventral-caudal-vc-as-a-locus-for-stimulation-by-inputs-from-tactile-noxious-and-thermal-sensors-on-an-active-prosthesis
#3
REVIEW
Jui Hong Chien, Anna Korzeniewska, Luana Colloca, Claudia Campbell, Patrick Dougherty, Frederick Lenz
The forebrain somatic sensory locus for input from sensors on the surface of an active prosthesis is an important component of the Brain Machine Interface. We now review the neuronal responses to controlled cutaneous stimuli and the sensations produced by Threshold Stimulation at Microampere current levels (TMIS) in such a locus, the human thalamic Ventral Caudal nucleus (Vc). The responses of these neurons to tactile stimuli mirror those for the corresponding class of tactile mechanoreceptor fiber in the peripheral nerve, and TMIS can evoke sensations like those produced by the stimuli that optimally activate each class...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538641/prehospital-plasma-resuscitation-associated-with-improved-neurologic-outcomes-after-traumatic-brain-injury
#4
Matthew C Hernandez, Cornelius A Thiels, Johnathon M Aho, Elizabeth B Habermann, Martin D Zielinski, James A Stubbs, Donald H Jenkins, Scott P Zietlow
INTRODUCTION: Trauma related hypotension and coagulopathy worsen secondary brain injury in patients with traumatic brain injuries (TBI). Early damage control resuscitation with blood products may mitigate hypotension and coagulopathy. Preliminary data suggest resuscitation with plasma in large animals improve neurologic function after TBI; however, data in humans are lacking. METHODS: We retrospectively identified all poly-trauma patients age >15 years with head injuries undergoing prehospital resuscitation with blood products at a single level I trauma center from 01/2002 to 12/2013...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538623/impact-of-a-novel-pi3-kinase-inhibitor-in-preventing-mitochondrial-dna-damage-and-damage-associated-molecular-pattern-accumulation-results-from-the-biochronicity-project
#5
George E Black, Kyle K Sokol, Donald M Moe, Jon Simmons, David Muscat, Victor Pastukh, Gina Capley, Olena Gorodnya, Mykhalo Ruchko, Mark B Roth, Mark Gillespie, Matthew J Martin
BACKGROUND: Despite improvements in the management of severely injured patients, development of multiple organ dysfunction syndrome (MODS) remains a morbid complication of traumatic shock. One of the key attributes of MODS is a profound bioenergetics crisis, for which the mediators and mechanisms are poorly understood. We hypothesized that metabolic uncoupling using an experimental PI3-kinase inhibitor, LY294002 (LY), may prevent mitochondrial abnormalities that lead to the generation of mitochondrial DNA (mtDNA) damage and the release of mtDNA damage associated molecular patterns (DAMPs) METHODS: 16 swine were studied using LY294002 (LY), a non-selective PI3-KI: Animals were assigned to Trauma only (TO, N=3); LY drug only (LYO, N=3); and Experimental (N=10), trauma + drug (LY+T) groups...
May 22, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28538607/evaluation-of-highest-level-pediatric-trauma-activation-criteria
#6
Jessica A Zagory, Minna M Wieck, Brooke E Lerner, Suzanne Moody, Richard A Falcone, Rita V Burke
BACKGROUND: Despite the presence of a tiered in-hospital trauma triage system for the past decade, trauma centers still struggle with a definitive list of highest level activation criteria. In 2002, the American College of Surgeons (ACS) mandated 6 criteria for highest level activation. However, it is unknown if pediatric trauma centers follow these criteria. The purpose of this study is to identify and categorize the highest level pediatric trauma criteria used by pediatric trauma centers in the United States...
May 23, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28538595/after-posterior-fusions-for-adult-spinal-deformity-operative-time-is-more-predictive-of-perioperative-morbidity-rather-than-surgical-invasiveness-a-need-for-speed
#7
Andre M Samuel, Michael C Fu, Nidharshan S Anandasivam, Matthew L Webb, Adam M Lukasiewicz, Han Jo Kim, Jonathan N Grauer
STUDY DESIGN: Retrospective cohort study OBJECTIVE.: To determine the independent effects of operative time and surgical invasiveness on perioperative outcomes after posterior spinal fusions for adult spinal deformity. SUMMARY OF BACKGROUND DATA: Morbidity is high after posterior fusions for adult spinal deformity. While previous reports have demonstrated an association between perioperative outcomes and the extent of correction and fusion (number of posterior levels fused, pelvic fixation, combined anterior-posterior fusion), no study has looked at the independent effects of the surgical invasiveness after controlling for operative time...
May 22, 2017: Spine
https://www.readbyqxmd.com/read/28538576/the-effects-of-motorcycle-helmet-legislation-on-craniomaxillofacial-injuries
#8
Nicholas S Adams, Patrick A Newbury, Mitchell G Eichhorn, Alan T Davis, Robert J Mann, John W Polley, John A Girotto
BACKGROUND: Motorcycle helmet legislation has been a contentious topic for over a half-century. Benefits of helmet use in motorcycle trauma patients are well documented. In 2012, Michigan repealed its universal motorcycle helmet law in favor of a partial helmet law. The authors describe the early clinical effects on facial injuries throughout Michigan. METHODS: Retrospective data from the Michigan Trauma Quality Improvement Program trauma database were evaluated...
June 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28538520/radiation-induced-cerebellar-cerebral-functional-connectivity-alterations-in-nasopharyngeal-carcinoma-patients
#9
Qiongmin Ma, Ling-Li Zeng, Jian Qin, Zhiguo Luo, Jianpo Su, Donglin Wu, Shijun Qiu, Dewen Hu
The current study aimed to investigate the altered cerebellar-cerebral functional connectivity (FC) induced by radiotherapy to nasopharyngeal carcinoma (NPC) patients. Twenty-four NPC patients without treatment, and 35 NPC patients receiving radiotherapy underwent functional MRI scanning. Montreal cognitive assessment (MoCA) was performed to evaluate the cognitive status of all participants. FC between 10 predefined cerebellar seeds, which were demonstrated to be involved in different brain functional networks, and all brain voxels was obtained for each participant...
May 19, 2017: Neuroreport
https://www.readbyqxmd.com/read/28538468/hearing-preservation-in-pediatric-cochlear-implantation
#10
Matthew L Carlson, Neil S Patel, Nicole M Tombers, Melissa D DeJong, Alyce I Breneman, Brian A Neff, Colin L W Driscoll
OBJECTIVE: Currently, there is a paucity of literature evaluating hearing preservation outcomes in children following cochlear implantation. The objective of the current study is to report pediatric hearing preservation results following cochlear implantation with conventional full-length electrodes. STUDY DESIGN: Retrospective review (2000-2016). SETTING: Tertiary referral center. PATIENTS: All pediatric patients with a ≤ 75 dB preoperative low-frequency pure tone average (LFPTA; 250-500 Hz average), who underwent cochlear implantation with a conventional length electrode...
May 22, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28538459/patient-comprehension-and-compliance-survey-to-assess-postoperative-pain-regimens-in-the-orthopaedic-trauma-population
#11
Anup K Gangavalli, Ajith Malige, Saqib Rehman, Chinenye O Nwachuku
OBJECTIVE: This study aims to determine the groups of patients who are at risk for noncompliance and misunderstanding of their pain regimen. DESIGN: Survey-based cohort study. SETTING: Suburban Level-I trauma center. PATIENTS/PARTICIPANTS: A total of 171 patients between the ages of 18-89 years who underwent surgical fixation of fractures involving the pelvis, long bones, or periarticular regions of the knee, ankle, elbow, and wrist...
June 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28538458/continuous-femoral-nerve-catheters-decrease-opioid-related-side-effects-and-increase-home-disposition-rates-among-geriatric-hip-fracture-patients
#12
Diren Arsoy, Michael J Gardner, Derek F Amanatullah, James I Huddleston, Stuart B Goodman, William J Maloney, Julius A Bishop
OBJECTIVE: To evaluate the effect of continuous femoral nerve catheter (CFNC) for postoperative pain control in geriatric proximal femur fractures compared with standard analgesia (SA) treatment. DESIGN: Retrospective comparative study. SETTING: Academic Level 1 trauma center. PATIENTS/PARTICIPANTS: We retrospectively identified 265 consecutive geriatric hip fracture patients who underwent surgical treatment. INTERVENTION: One hundred forty-nine patients were treated with standard analgesia without nerve catheter whereas 116 patients received an indwelling CFNC...
June 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28538457/patterns-of-opioid-prescribing-for-an-orthopaedic-trauma-population
#13
John Ruder, Meghan K Wally, McKell Oliverio, Rachel B Seymour, Joseph R Hsu
OBJECTIVES: To determine opioid-prescribing practices to the orthopaedic trauma (OT) population at one Level I trauma center. DESIGN: A retrospective study of discharge prescriptions for adult patients with OT. Prescription details, injury burden, and patient demographics were abstracted for patients from initial injury through a 2-month follow-up. SETTING: Level I trauma center. PATIENTS/PARTICIPANTS: Adult patients with OT admitted over a 30-day period (n = 110)...
June 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28538454/open-tibia-shaft-fractures-and-soft-tissue-coverage-the-effects-of-management-by-an-orthopaedic-microsurgical-team
#14
James VandenBerg, Daniel Osei, Martin I Boyer, Michael J Gardner, William M Ricci, Amanda Spraggs-Hughes, Christopher M McAndrew
OBJECTIVES: To compare the timing of soft-tissue (flap) coverage and occurrence of complications before and after the establishment of an integrated orthopaedic trauma/microsurgical team. DESIGN: Retrospective cohort study. SETTING: A single level 1 trauma center. PATIENTS: Twenty-eight subjects (13 pre- and 15 post-integration) with open tibia shaft fractures (OTA/AO 42A, 42B, and 42C) treated with flap coverage between January 2009 and March 2015...
June 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28538325/heart-rate-variability-discriminates-competitive-levels-in-professional-soccer-players
#15
Riccardo Proietti, Selenia di Fronso, Lucas A Pereira, Laura Bortoli, Claudio Robazza, Fabio Y Nakamura, Maurizio Bertollo
Proietti, R, di Fronso, S, Pereira, LA, Bortoli, L, Robazza, C, Nakamura, FY, and Bertollo, M. Heart rate variability discriminates competitive levels in professional soccer players. J Strength Cond Res 31(6): 1719-1725, 2017-Heart rate variability (HRV) has been increasingly used to monitor team sports athletes. Besides the traditional time domain indices (i.e., the SD of successive RR intervals [SDNN] and the root mean square difference of successive normal RR intervals [RMSSD]), recently the use of the stress score (SS), which is an inverse function of the SD2 index derived from the Poincaré plot, and the sympathetic/parasympathetic ratio (S/PS) to monitor soccer players has been proposed...
June 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28538227/self-directedness-predicts-quality-of-life-in-individuals-with-psychotic-experiences-a-1-year-follow-up-study
#16
Letícia Oliveira Alminhana, Miguel Farias, Gordon Claridge, C Robert Cloninger, Alexander Moreira-Almeida
There is a high prevalence of psychotic-like experiences in nonclinical patient cohorts from Brazil. This study aimed to test whether personality dimensions, as well as schizotypy, are important predictors of quality of life (QoL) in individuals with psychotic experiences (PE). METHOD: 115 participants were recruited from Spiritist Centers in Brazil. At the 1-year follow up, 90 participants (78%) were reassessed. Instruments were the SCID-I (Structured Clinical Interview for DSM-IV), TCI-R 140 (Revised Temperament and Character Inventory), OLIFE-R (Oxford-Liverpool Inventory of Feelings and Experiences), and WHOQOL-BREF (World Health Organization QoL Instrument)...
May 25, 2017: Psychopathology
https://www.readbyqxmd.com/read/28538160/colonialism-and-genetics-of-comparative-development
#17
Ideen Riahi
This study argues that European colonial policies and former colonies' genetic variation (genetic distance to Europeans and genetic diversity) were interlinked. Over a prolonged period of time, populations that were genetically far from Europeans and had extreme levels of genetic diversity (e.g. in Sub-Saharan Africa and the Americas) adapted to environments that were significantly different from the climatic conditions of continental Europe. This resulted in a divergence in populations' resistance to infectious diseases and positive relationships between European settler mortality at the time of colonization, genetic distance to the technological frontier, and genetic diversity...
May 9, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28538144/probing-the-potential-role-of-non-b-dna-structures-at-yeast-meiosis-specific-dna-double-strand-breaks
#18
Rucha Kshirsagar, Krishnendu Khan, Mamata V Joshi, Ramakrishna V Hosur, K Muniyappa
A plethora of evidence suggests that different types of DNA quadruplexes are widely present in the genome of all organisms. The existence of a growing number of proteins that selectively bind and/or process these structures underscores their biological relevance. Moreover, G-quadruplex DNA has been implicated in the alignment of four sister chromatids by forming parallel guanine quadruplexes during meiosis; however, the underlying mechanism is not well defined. Here we show that a G/C-rich motif associated with a meiosis-specific DNA double-strand break (DSB) in Saccharomyces cerevisiae folds into G-quadruplex, and the C-rich sequence complementary to the G-rich sequence forms an i-motif...
May 23, 2017: Biophysical Journal
https://www.readbyqxmd.com/read/28538136/genetic-and-pharmacologic-inactivation-of-angptl3-and-cardiovascular-disease
#19
Frederick E Dewey, Viktoria Gusarova, Richard L Dunbar, Colm O'Dushlaine, Claudia Schurmann, Omri Gottesman, Shane McCarthy, Cristopher V Van Hout, Shannon Bruse, Hayes M Dansky, Joseph B Leader, Michael F Murray, Marylyn D Ritchie, H Lester Kirchner, Lukas Habegger, Alex Lopez, John Penn, An Zhao, Weiping Shao, Neil Stahl, Andrew J Murphy, Sara Hamon, Aurelie Bouzelmat, Rick Zhang, Brad Shumel, Robert Pordy, Daniel Gipe, Gary A Herman, Wayne H H Sheu, I-Te Lee, Kae-Woei Liang, Xiuqing Guo, Jerome I Rotter, Yii-Der I Chen, William E Kraus, Svati H Shah, Scott Damrauer, Aeron Small, Daniel J Rader, Anders Berg Wulff, Børge G Nordestgaard, Anne Tybjærg-Hansen, Anita M van den Hoek, Hans M G Princen, David H Ledbetter, David J Carey, John D Overton, Jeffrey G Reid, William J Sasiela, Poulabi Banerjee, Alan R Shuldiner, Ingrid B Borecki, Tanya M Teslovich, George D Yancopoulos, Scott J Mellis, Jesper Gromada, Aris Baras
Background Loss-of-function variants in the angiopoietin-like 3 gene (ANGPTL3) have been associated with decreased plasma levels of triglycerides, low-density lipoprotein (LDL) cholesterol, and high-density lipoprotein (HDL) cholesterol. It is not known whether such variants or therapeutic antagonism of ANGPTL3 are associated with a reduced risk of atherosclerotic cardiovascular disease. Methods We sequenced the exons of ANGPTL3 in 58,335 participants in the DiscovEHR human genetics study. We performed tests of association for loss-of-function variants in ANGPTL3 with lipid levels and with coronary artery disease in 13,102 case patients and 40,430 controls from the DiscovEHR study, with follow-up studies involving 23,317 case patients and 107,166 controls from four population studies...
May 24, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28538081/is-body-mass-index-a-risk-factor-for-revision-procedures-after-minimally-invasive-transforaminal-lumbar-interbody-fusion
#20
Ankur S Narain, Fady Y Hijji, Daniel D Bohl, Kelly H Yom, Krishna T Kudaravalli, Kern Singh
STUDY DESIGN: Retrospective cohort study. OBJECTIVE: To determine if an association exists between body mass index (BMI) and the rate of revision surgery after single-level minimally invasive transforaminal lumbar interbody fusion (MIS TLIF). SUMMARY OF BACKGROUND DATA: MIS TLIF is an effective treatment for lumbar degenerative disease. Previous studies in the orthopedic literature have associated increased BMI with increased postoperative complications and need for revision...
May 19, 2017: Clinical Spine Surgery
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