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https://www.readbyqxmd.com/read/28437944/calibrating-high-intensity-absorption-imaging-of-ultracold-atoms
#1
Klaus Hueck, Niclas Luick, Lennart Sobirey, Jonas Siegl, Thomas Lompe, Henning Moritz, Logan W Clark, Cheng Chin
Absorption imaging of ultracold atoms is the foundation for quantitative extraction of information from experiments with ultracold atoms. Due to the limited exposure time available in these systems, the signal-to-noise ratio is largest for high intensity absorption imaging where the intensity of the imaging light is on the order of the saturation intensity. In this case, the absolute value of the intensity of the imaging light enters as an additional parameter making it more sensitive to systematic errors. Here, we present a novel and robust technique to determine the imaging beam intensity in units of the effective saturation intensity to better than 5%...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437896/variability-of-apparent-and-inherent-optical-properties-of-sediment-laden-waters-in-large-river-basins-lessons-from-in-situ-measurements-and-bio-optical-modeling
#2
Sylvain Pinet, Jean-Michel Martinez, Sylvain Ouillon, Bruno Lartiges, Raul Espinoza Villar
We investigated the relationships between inherent and apparent optical properties (IOP and AOP, respectively) and suspended sediment concentrations (SSC) in the main Amazonian river waters. In situ measurements of SSC, remote sensing reflectance (R<sub>rs</sub>), the diffuse light attenuation coefficient (K<sub>d</sub>) and the total and non-algal particle (NAP) absorption coefficients (a<sub>TOT</sub> and a<sub>NAP</sub>, respectively) were conducted during three sampling trips along different streams of the Amazon River catchment (104 stations)...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28437869/risk-modeling-of-interdependent-complex-systems-of-systems-theory-and-practice
#3
Yacov Y Haimes
The emergence of the complexity characterizing our systems of systems (SoS) requires a reevaluation of the way we model, assess, manage, communicate, and analyze the risk thereto. Current models for risk analysis of emergent complex SoS are insufficient because too often they rely on the same risk functions and models used for single systems. These models commonly fail to incorporate the complexity derived from the networks of interdependencies and interconnectedness (I-I) characterizing SoS. There is a need to reevaluate currently practiced risk analysis to respond to this reality by examining, and thus comprehending, what makes emergent SoS complex...
April 24, 2017: Risk Analysis: An Official Publication of the Society for Risk Analysis
https://www.readbyqxmd.com/read/28437855/mild-fetal-cerebral-ventriculomegaly-prevalence-characteristics-and-utility-of-ancillary-testing-in-cases-presenting-to-a-tertiary-referral-center
#4
Alison J Mehlhorn, Cara E Morin, Jade J Wong-You-Cheong, Stephen A Contag
OBJECTIVE: Ventriculomegaly is the most common fetal brain anomaly identified during prenatal anatomy ultrasound. The aim of our study was to characterize cases of mild ventriculomegaly and investigate the utility of ancillary tests. METHOD: We reviewed 121 cases of mild ventriculomegaly, defined as lateral ventricle diameter of 10-15 mm. Characteristics of the ventricular dilation as well as each pregnancy were investigated. Ancillary tests performed included follow-up MRI, chromosomal abnormality testing, and maternal serologic infection screening...
April 24, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28437811/symptomatic-outcome-after-bone-only-suboccipital-decompression-in-adult-patients-with-chiari-type-i-malformations-in-the-absence-of-hydromyelia-or-hydrocephalus
#5
Nicolas Olmo Koechlin, Hazem J Abuhusain, Manuri Gunawardena, Tyler S Auschwitz, Charles Teo
Background Type I Chiari malformation presents without an associated hydromyelia in 30 to 70% of cases, yet there is no agreement regarding the optimal surgical treatment for these patients. We review our experience for treating symptomatic adult type I Chiari malformation without hydromyelia using a suboccipital bone decompression of the hindbrain and no duraplasty in 12 adult patients. Outcome was measured according to the Chicago Chiari Outcome Scale (CCOS). Results Nine of 12 patients were female; average age at surgery was 34...
April 24, 2017: Journal of Neurological Surgery. Part A, Central European Neurosurgery
https://www.readbyqxmd.com/read/28437778/strengthening-governance-for-intertidal-ecosystems-requires-a-consistent-definition-of-boundaries-between-land-and-sea
#6
Stefanie M Rog, Carly N Cook
The protection of intertidal ecosystems is complex because they straddle both marine and terrestrial realms. This leads to inconsistent characterisation as marine and/or terrestrial systems, or neither. Vegetated intertidal ecosystems are especially complex to classify because they can have an unclear border with terrestrial vegetation, causing confusion around taxonomy (e.g., mangrove-like plants). This confusion and inconsistency in classification can impact these systems through poor governance and incomplete protection...
April 21, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28437728/is-a-a-o-process-effective-in-toxicity-removal-case-study-with-coking-wastewater
#7
Liu Shi, Dong Wang, Di Cao, Chunhong Na, Xie Quan, Ying Zhang
The anaerobic-anoxic-oxic (A/A/O) process is the commonly used biological wastewater treatment process, especially for the coking wastewater. However, limit is known about its ability in bio-toxicity removal from wastewater. In this study, we evaluated the performance of A/A/O process in bio-toxicity removal from the coking wastewater, using two test species (i.e. crustacean (Daphnia magna) and zebra fish (Danio rerio)) in respect of acute toxicity, oxidative damage and genotoxicity. Our results showed that the acute toxicity of raw influent was reduced gradually along with A/A/O process and the effluent presented no acute toxicity to Daphnia magna (D...
April 21, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28437674/laparoscopic-approach-to-colo-renal-fistula-with-renal-preservation-and-omentoplasty-a-case-report
#8
Awais Ashfaq, Robert Ferrigni, Nitin Mishra
Colorenal fistula as a result of percutaneous cryoablation has not been extensively reported. We report a gentleman who presented with urosepsis after percutaneous biopsy of a renal mass complicated by colorenal fistula. After failed attempts at conservative management, he underwent laparoscopic resection of his fistula with renal salvage and omentoplasty highlighting that nephrectomy is not always indicated.
April 4, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28437673/successful-primary-repair-of-late-diagnosed-spontaneous-esophageal-rupture-a-case-report
#9
Diana Y Kircheva, Wickii T Vigneswaran
INTRODUCTION: Spontaneous esophageal rupture is rare, roughly 300 cases reported annually. Diagnosis is often delayed or missed. Overall mortality is about 20%. This feared high mortality rate has led to the misconception that primary esophageal repair should be avoided in late diagnosed patients. We report a successful primary repair of spontaneous esophageal rupture which was delayed for more than two weeks. METHODS: A 53 year-old male presented to our medical service after falsely having been treated for pneumonia at an outside hospital...
April 1, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28437672/eosinophilic-funiculitis-initially-diagnosed-as-irreducible-inguinal-hernia-a-case-report
#10
Kohei Yamada, Akashi Ikubo, Shota Ikeda, Satoko Koga, Yasuhiro Tsuru, Hideo Kuroki, Naohiko Koya, Ryuichiro Samejima, Masashi Sakai, Masanobu Tabuchi, Seiji Yunotani, Shinichi Kido, Kazushige Nishimura, Hiroyuki Meiri
BACKGROUND: Most groin masses are first suspected to be groin hernias. More than 80% of bulging groin lesions are reportedly diagnosed as hernias by ultrasonography. Establishment of the correct diagnosis of hernia among all differential diagnoses is not easy. We herein describe a very rare case of groin eosinophilic funiculitis that presented as an irreducible groin hernia. CASE PRESENTATION: A 59-year-old man presented to our hospital with suspicion of a right groin hernia...
April 5, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28437671/a-case-report-on-esophageal-tuberculosis-a-rare-entity
#11
Vatsal Khanna, Abhilash Kumar, Naveen Alexander, Parmasivam Surendran
This is a case report of a rare form of tuberculosis in a patient presenting with dysphagia. Patient was subjected to upper gastrointestinal endoscopy, which revealed an ulcerative growth in the distal esophagus. Histopathology revealed esophageal tuberculosis. Patient was managed conservatively with Anti-Tuberculosis Treatment (ATT). Follow up endoscopy after two months revealed resolution of the growth and patient was symptomatically better. In spite of the rare nature of the disease, it can be managed effectively with ATT to avoid complications (fistula, stricture, and esophageal perforation), which might warrant surgery...
April 3, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28437623/selective-scene-perception-deficits-in-a-case-of-topographical-disorientation
#12
Jessica Robin, Matthew X Lowe, Sara Pishdadian, Josée Rivest, Jonathan S Cant, Morris Moscovitch
Topographical disorientation (TD) is a neuropsychological condition characterized by an inability to find one's way, even in familiar environments. One common contributing cause of TD is landmark agnosia, a visual recognition impairment specific to scenes and landmarks. Although many cases of TD with landmark agnosia have been documented, little is known about the perceptual mechanisms which lead to selective deficits in recognizing scenes. In the present study, we test LH, a man who exhibits TD and landmark agnosia, on measures of scene perception that require selectively attending to either the configural or surface properties of a scene...
April 2, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/28437619/management-of-posterior-cruciate-ligament-tibial-avulsion-injuries-a-systematic-review
#13
Perry O Hooper, Chris Silko, Tennison L Malcolm, Lutul D Farrow
BACKGROUND: Tibial-sided avulsion injuries of the posterior cruciate ligament (PCL) generally require surgical intervention. No consensus exists concerning the optimal surgical treatment approach for these injuries. PURPOSE: To perform a systematic review investigating the open and arthroscopic surgical treatment modalities, outcomes, and complications of PCL tibial-sided bony avulsions. STUDY DESIGN: Systematic review; Level of evidence, 4...
April 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28437579/mosaic-trisomy-1q-a-recurring-chromosome-anomaly-that-is-a-diagnostic-challenge-and-is-associated-with-a-fryns-like-phenotype
#14
Kathleen M Bone, Judy E Chernos, Renee Perrier, A Micheil Innes, Francois P Bernier, Ross McLeod, Mary Ann Thomas
OBJECTIVE: Trisomy of the long arm of chromosome 1 is a very rare cytogenetic anomaly that is difficult to diagnose due to tissue-limited mosaicism. This study aimed to further characterize the prenatal and postnatal findings associated with this anomaly, including the first reported chromosomal microarray finding. METHOD: This is a retrospective study of 6 cases of mos 46,X,der(Y)t(Y;1)(q12;q21)/46,XY diagnosed both pre- and postnatally. Detailed clinical features and pregnancy outcome were documented...
April 24, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28437554/molecular-identification-of-cetaceans-from-the-west-atlantic-using-the-e3-i5-region-of-coi
#15
L H O Falcão, A S Campos, J E P Freitas, M A A Furtado-Neto, V V Faria
Molecular identification is very useful in cases where morphology-based species identification is not possible. Examples for its application in cetaceans include the identification of carcasses of stranded animals in advanced state of decomposition and body parts that are illegally traded. One DNA region that is often used for molecular identification is the Folmer region of the mitochondrial gene cytochrome c oxidase subunit I (COI) (locus 48 to 705 bp). This locus has been used for the identification of several animal species, including whales and dolphins...
April 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28437548/arthroscopic-treatment-of-a-displaced-nonunion-of-the-anterior-inferior-iliac-spine-causing-extra-articular-impingement
#16
Motoi Shibahara, Yasuo Ohnishi, Eisaburo Honda, Dean K Matsuda, Soshi Uchida
This report describes a case of nonunion of an anterior inferior iliac spine (AIIS) apophyseal avulsion fracture with resultant subspine impingement combined with symptomatic femoroacetabular impingement (FAI). A 16-year-old male soccer player presented with a 6-month history of right groin pain exacerbated by kicking and running. The patient was diagnosed with a displaced nonunion of the AIIS apophysis avulsion fracture causing secondary extra-articular impingement beyond cam-type FAI by physical examination and radiological findings...
April 24, 2017: Orthopedics
https://www.readbyqxmd.com/read/28437535/clinical-aspects-of-glucose-transporter-type-1-deficiency-information-from-a-global-registry
#17
Jian Hao, Dorothy I Kelly, Jianzhong Su, Juan M Pascual
Importance: Case reports regularly document unique or unusual aspects of glucose transporter type 1 deficiency (G1D). In contrast, population studies from which to draw global inferences are lacking. Twenty-five years after the earliest case reports, this deficiency still particularly affects treatment and prognostic counseling. Objective: To examine the most common features of G1D. Design, Setting, and Participants: In this study, data were collected electronically from 181 patients with G1D through a web-based, worldwide patient registry from December 1, 2013, through December 1, 2016...
April 24, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/28437505/guidelines-for-treatment-of-lateral-patella-dislocations-in-skeletally-mature-patients
#18
Michael C Liebensteiner, Florian Dirisamer, Peter Balcarek, Philip Schoettle
The incidence of lateral patella dislocations is high, particularly in young females. Beside traumatic cases, many patients present with specific anatomical factors that predispose to lateral patella dislocations (torsional abnormalities of the femur or the tibia, trochlea dysplasia, patella alta, etc). It is of utmost importance to correct those pathologic factors during concomitant procedures as isolated reconstructions of the medial patellofemoral ligament would fail in the presence of severe anatomic risk factors...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28437501/pronator-teres-myotendinous-tear
#19
Usama Qayyum, Diego Villacis, Charles M Jobin
Pronator teres muscle strain is a rare sporting injury reported thus far only in cricket and golf players. The injury appears to occur when the sporting club or racket strikes the ground during a forceful swing and causes the elbow to experience an eccentric force during resisted elbow flexion and pronation. On initial presentation, this injury can be mistaken for injury to the medial ulnar collateral ligament, or exacerbation of medial epicondylitis. On examination, bruising and tenderness distal to the elbow over the course of the pronator teres are often present...
March 2017: American Journal of Orthopedics
https://www.readbyqxmd.com/read/28437498/superior-mesenteric-artery-syndrome-as-a-complication-of-scoliosis-surgery
#20
Philip K Louie, Bryce A Basques, Adam Bitterman, Shalin Shah, Kishan Patel, Isaac Abramchayev, Jonathan Lewin
Superior mesenteric artery (SMA) syndrome is a rare and potentially life-threatening complication of scoliosis surgery. The anatomical relationship of the duodenum and the superior mesenteric artery, the correction of angular deformity of the spine, and the normal adolescent growth spurt all contribute to the condition. We report the case of a 14-year-old boy who had a history of idiopathic scoliosis and presented with bilious vomiting that had persisted for 7 days after posterior T9-L4 fusion with instrumentation...
March 2017: American Journal of Orthopedics
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