keyword
MENU ▼
Read by QxMD icon Read
search

drilling

keyword
https://www.readbyqxmd.com/read/29161308/effects-of-tones-associated-with-drilling-activities-on-bowhead-whale-calling-rates
#1
Susanna B Blackwell, Christopher S Nations, Aaron M Thode, Mandy E Kauffman, Alexander S Conrad, Robert G Norman, Katherine H Kim
During summer 2012 Shell performed exploratory drilling at Sivulliq, a lease holding located in the autumn migration corridor of bowhead whales (Balaena mysticetus), northwest of Camden Bay in the Beaufort Sea. The drilling operation involved a number of vessels performing various activities, such as towing the drill rig, anchor handling, and drilling. Acoustic data were collected with six arrays of directional recorders (DASARs) deployed on the seafloor over ~7 weeks in Aug-Oct. Whale calls produced within 2 km of each DASAR were identified and localized using triangulation...
2017: PloS One
https://www.readbyqxmd.com/read/29160804/residual-endodontic-filling-material-after-post-space-preparation-a-confocal-microscopic-study
#2
Yu-Yao Teoh, Laurence J Walsh
This laboratory study assessed removability of endodontic alkaline cements and resin sealers using coronal cross-sectional slices of roots with single canals. Materials were labelled with 0.1% (w/w) sodium fluorescein prior to mixing so that confocal microscopy could be used to quantify material remaining on the walls of post spaces, to assess cleanliness. Roots of extracted teeth were prepared using rotary NiTi instruments then obturated using lateral condensation with gutta percha and epoxy resin sealers (AH-Plus™ or Zirmix™), or were filled by injecting mineral trioxide aggregate (MTA) cement (GC Nex™ MTA or MTAmix™) or a hard-setting calcium hydroxide cement (Supercal™)...
November 21, 2017: Materials
https://www.readbyqxmd.com/read/29157461/automated-outcome-scoring-in-a-virtual-reality-simulator-for-endodontic-surgery
#3
Myat Su Yin, Peter Haddawy, Siriwan Suebnukarn, Phattanapon Rhienmora
BACKGROUND AND OBJECTIVE: We address the problem of automated outcome assessment in a virtual reality (VR) simulator for endodontic surgery. Outcome assessment is an essential component of any system that provides formative feedback, which requires assessing the outcome, relating it to the procedure, and communicating in a language natural to dental students. This study takes a first step toward automated generation of such comprehensive feedback. METHODS: Virtual reference templates are computed based on tooth anatomy and the outcome is assessed with a 3D score cube volume which consists of voxel-level non-linear weighted scores based on the templates...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29157141/experimental-study-on-effects-of-drilling-parameters-on-respirable-dust-production-during-roof-bolting-operations
#4
Hua Jiang, Yi Luo, Joe McQuerrey
Underground coalmine roof bolting operators exhibit a continued risk for overexposure to airborne levels of respirable coal and crystalline silica dust from the roof drilling operation. Inhaling these dusts can cause coal worker's pneumoconiosis and silicosis. This research explores the effect of drilling control parameters, specifically drilling bite depth, on the reduction of respirable dust generated during the drilling process. Laboratory drilling experiments were conducted and results demonstrated the feasibility of this dust control approach...
November 20, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/29156978/bone-marrow-progenitor-cells-isolated-from-young-rabbit-trochlea-are-more-numerous-and-exhibit-greater-clonogenic-chondrogenic-and-osteogenic-potential-than-cells-isolated-from-condyles
#5
Garima Dwivedi, Anik Chevrier, Caroline D Hoemann, Michael D Buschmann
OBJECTIVE: Bone marrow stimulation procedures initiate repair by fracturing or drilling subchondral bone at base of cartilaginous defect. Earlier studies have shown that defect location and animal age affect cartilage repair outcome, suggesting a strong influence of structural and biological characteristics of subchondral bone. Here, we analyzed comprehensive biological characteristics of bone marrow progenitor cells (BMPCs) in subchondral bone of young and old rabbit condyle and trochlea...
January 1, 2017: Cartilage
https://www.readbyqxmd.com/read/29154932/correlation-of-virtual-reality-simulation-and-dry-lab-robotic-technical-skills
#6
Laura K Newcomb, Megan S Bradley, Tracy Truong, Michelle Tang, Bryan Comstock, Yi-Ju Li, Anthony G Visco, Nazema Y Siddiqui
STUDY OBJECTIVE: To examine whether a set of virtual reality (VR) surgical simulation drills have correlative validity when compared to the validated Robotic Objective Structured Assessment of Technical Skills (R-OSATS) dry lab drills. DESIGN: A prospective methods comparison study (Canadian Task Force II-2). SETTING: A teaching hospital. PARTICIPANTS: Thirty current residents, fellows, and faculty from the departments of OB/GYN, Urology, and General Surgery...
November 14, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29153053/experimental-investigation-of-temperature-rise-in-bone-drilling-with-cooling-a-comparison-between-modes-of-without-cooling-internal-gas-cooling-and-external-liquid-cooling
#7
Ehsan Shakouri, Hossein Haghighi Hassanalideh, Seifollah Gholampour
Bone fracture occurs due to accident, aging, and disease. For the treatment of bone fractures, it is essential that the bones are kept fixed in the right place. In complex fractures, internal fixation or external methods are used to fix the fracture position. In order to immobilize the fracture position and connect the holder equipment to it, bone drilling is required. During the drilling of the bone, the required forces to chip formation could cause an increase in the temperature. If the resulting temperature increases to 47 °C, it causes thermal necrosis of the bone...
November 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/29149064/who-participates-in-the-great-shakeout-why-audience-segmentation-is-the-future-of-disaster-preparedness-campaigns
#8
Rachel M Adams, Beth Karlin, David P Eisenman, Johanna Blakley, Deborah Glik
Background: In 2008, the Southern California Earthquake Center in collaboration with the U.S. Geological Survey Earthquake Hazards Program launched the first annual Great ShakeOut, the largest earthquake preparedness drill in the history of the United States. Materials and Methods: We collected online survey data from 2052 campaign registrants to assess how people participated, whether audience segments shared behavioral patterns, and whether these segments were associated with five social cognitive factors targeted by the ShakeOut campaign...
November 17, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29148161/piezoelectric-versus-conventional-implant-site-preparation-a-systematic-review-and-meta-analysis
#9
REVIEW
Momen A Atieh, Nabeel H M Alsabeeha, Andrew Tawse-Smith, Warwick J Duncan
BACKGROUND: The use of a piezoelectric device (PED) for implant site preparation (ISP) has been introduced to overcome the limitations of using conventional drills (CDs). With little and inconsistent information in the literature regarding their efficiency for preparing implant osteotomies, the objective of this systematic review was to compare the use of CDs to PEDs for ISP with regard to implant stability values, marginal bone level changes, operating time, and dental implant failure rate...
November 16, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/29147489/the-effect-of-platelet-rich-plasma-on-human-mesenchymal-stem-cell-induced-bone-regeneration-of-canine-alveolar-defects-with-calcium-phosphate-based-scaffolds
#10
Reihaneh Shafieian, Maryam Moghaddam Matin, Amin Rahpeyma, Alireza Fazel, Hamideh Salari Sedigh, Ariane Sadr-Nabavi, Halimeh Hassanzadeh, Alireza Ebrahimzadeh-Bideskan
Objectives: Autologous bone transplantation known as the "gold standard" to reconstruction of osseous defects has known disadvantages. This study was designed to explore the effects of hydroxy-apatite/tricalcium-phosphate (HA/TCP) and platelet-rich plasma (PRP) on the osteogenesis ability of human adipose-derived mesenchymal stem cells (hAdMSCs) in vitro and in vivo. Materials and Methods: hAdMSCs were incubated with HA/TCP granules and/or PRP in vitro and then, cell proliferation and differentiation was assessed by MTT assay, AZR S staining and SEM examination...
October 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29146664/the-effects-of-practice-based-training-on-graduate-teaching-assistants-classroom-practices
#11
Erin A Becker, Erin J Easlon, Sarah C Potter, Alberto Guzman-Alvarez, Jensen M Spear, Marc T Facciotti, Michele M Igo, Mitchell Singer, Christopher Pagliarulo
Evidence-based teaching is a highly complex skill, requiring repeated cycles of deliberate practice and feedback to master. Despite existing well-characterized frameworks for practice-based training in K-12 teacher education, the major principles of these frameworks have not yet been transferred to instructor development in higher educational contexts, including training of graduate teaching assistants (GTAs). We sought to determine whether a practice-based training program could help GTAs learn and use evidence-based teaching methods in their classrooms...
2017: CBE Life Sciences Education
https://www.readbyqxmd.com/read/29146511/surgical-management-of-proximal-interphalangeal-joint-repetitive-stress-epiphyseal-fracture-nonunion-in-elite-sport-climbers
#12
Yasser El-Sheikh, Chris Lutter, Isabelle Schoeffl, Volker Schoeffl, Sascha Flohe
Repetitive stress fracture of the middle phalanx epiphysis is an injury specific to elite adolescent sport climbers. As sport climbing becomes increasingly popular in younger age groups, an increased number of these injuries have been reported in recent years. To date, treatment of these fractures has been nonsurgical, with strict rest and physiotherapy prescribed until fracture union. However, when these patients present in a delayed fashion with an established nonunion, nonsurgical treatment may fail, leading to disabling chronic pain and/or digital deformity in some cases...
November 14, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/29145504/quantifying-performance-on-an-outdoor-agility-drill-using-foot-mounted-inertial-measurement-units
#13
Antonia M Zaferiou, Lauro Ojeda, Stephen M Cain, Rachel V Vitali, Steven P Davidson, Leia Stirling, Noel C Perkins
Running agility is required for many sports and other physical tasks that demand rapid changes in body direction. Quantifying agility skill remains a challenge because measuring rapid changes of direction and quantifying agility skill from those measurements are difficult to do in ways that replicate real task/game play situations. The objectives of this study were to define and to measure agility performance for a (five-cone) agility drill used within a military obstacle course using data harvested from two foot-mounted inertial measurement units (IMUs)...
2017: PloS One
https://www.readbyqxmd.com/read/29143065/-complex-joint-reconstruction-and-joint-transplantation-with-the-flocsat-concept-planning-and-surgical-implementation
#14
REVIEW
C Krettek, J-D Clausen, C Neunaber
Cartilage defects in adult patients are so far incurable. Fresh osteochondral allograft (OCA) transplantation is based on the insertion of mature, living, mechanically sound hyaline cartilage into an osteochondral defect where it undergoes osseointegration. Intact hyaline cartilage of OCA does not cause immune reactions in the recipient. Many reports show that small OCA have good osseointegration and show good long-term results. These observations have been incorporated into the development of the fresh large (> 10 cm(2)) osteochondral shell allograft transplantation (FLOCSAT) concept, which is based on the following principles: 1) the thickness of the osseous layer should be kept as thin as possible (target < 6-8 mm) so that the transplant remains stable and fixable...
November 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/29140908/heart-rate-monitoring-in-basketball-applications-player-responses-and-practical-recommendations
#15
Daniel M Berkelmans, Vincent J Dalbo, Crystal O Kean, Zoran Milanović, Emilija Stojanović, Nenad Stojiljković, Aaron T Scanlan
The aims of this review were to collate the existing literature encompassing heart rate (HR) monitoring in basketball to: (i) identify the applications of HR measurement; (ii) report HR responses in male and female players during training and game-play; (iii) evaluate use of current HR-based training load models; and (iv) provide recommendations for future research and best practice approaches for basketball practitioners. HR monitoring in basketball carries three primary applications: (i) monitoring exercise intensity; (ii) assessing player fatigue status; and (iii) quantifying internal training load...
November 13, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29140373/clinical-considerations-of-adapted-drilling-protocol-by-bone-quality-perception
#16
Marco Toia, Michele Stocchero, Francesca Cecchinato, Enrico Corrà, Ryo Jimbo, Denis Cecchinato
PURPOSE: To evaluate insertion torque value (ITV) and marginal bone loss (MBL) of an implant system after a clinically perceived bone quality-adapted drilling. MATERIALS AND METHODS: This multicenter retrospective study included patients treated with implants, conventionally loaded, in completely healed sites. Operators customized the osteotomy preparation according to radiographic assessment and their perception of bone quality. Drilling sequence, bone quality, and ITV were recorded at the time of surgery...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140179/relationship-between-two-standardized-tackling-proficiency-tests-and-rugby-league-match-play-tackle-performance
#17
Michael Speranza, Tim Gabbett, David A Greene, Richard D Johnston, Andrew D Townshend
This study investigated the relationship between two different assessments of tackling ability, physical qualities, and match-play performance in semi-professional rugby league players. Eighteen semi-professional rugby league players (mean ± SD age, 23.1 ± 2.0 yrs; mass 98.8 ± 11.8 kg) underwent tests of upper- and lower-body strength and power. Tackling ability was assessed using video analysis under-the-ball and over-the-ball tackle drills. A total of 2,360 tackles were analyzed from match-play. Over-the-ball tackle ability was positively related to the proportion of dominant tackles (rs = 0...
November 15, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29138975/distal-transsylvian-keyhole-approach-for-unruptured-anterior-circulation-small-aneurysms
#18
Ririko Takeda, Hiroki Kurita
BACKGROUND: To reduce complications associated with conventional pterional craniotomy, a transsylvian keyhole approach for unruptured small anterior circulation aneurysms is proposed. METHODS: A 7-cm linear scalp incision is made along the hairline, beginning at the zygoma, followed by minimal temporal muscle dissection. Two burr holes are drilled out at McCarty's point and the temporal bone, and a 3-cm equilateral triangle bone flap is made, whose apex is located above the sylvian point...
November 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29138920/concurrent-arthroscopic-osteochondral-lesion-treatment-and-lateral-ankle-ligament-repair-has-no-substantial-effect-on-the-outcome-of-chronic-lateral-ankle-instability
#19
Dong Jiang, Yin-Fang Ao, Chen Jiao, Xing Xie, Lin-Xin Chen, Qin-Wei Guo, Yue-Lin Hu
PURPOSE: The purpose of the study was to evaluate the effect of concurrent arthroscopic osteochondral lesion (OCL) treatment and lateral ankle ligament repair on the outcome of chronic lateral ankle instability. It was hypothesized that the arthroscopic OCL treatment might have some negative effect on the outcome of chronic lateral ankle instability (CLAI) by compromising the rehabilitation program. METHODS: Ankle arthroscopy and anatomic lateral ankle ligament repair with suture anchors were performed for 70 patients with CLAI between 2010 and 2012...
November 14, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29138871/revision-shoulder-arthroplasty-with-a%C3%A2-reverse-shoulder-prosthesis-use-of-structural-allograft-for-glenoid-bone-loss
#20
S E Ozgur, R Sadeghpour, T R Norris
INTRODUCTION: Revision shoulder arthroplasty presents many unique and complex challenges when glenoid bone loss is involved. A distorted and medialized anatomy prevents the proper mechanics of the reverse prosthesis with regard to deltoid tension and ultimate function. This paper highlights one surgeon's experience using structural allograft for glenoid bone loss. PATIENTS AND METHODS: In all, 20 patients for a total of 24 surgeries with a medialized glenoid and/or substantial glenoid bone loss of grade IIB or higher were evaluated in this retrospective study...
November 14, 2017: Der Orthopäde
keyword
keyword
74473
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"