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https://www.readbyqxmd.com/read/29474662/radiographic-analysis-of-the-vidian-canal-and-its-utility-in-petrous-internal-carotid-artery-localization
#1
Eric C Mason, Patricia A Hudgins, Gustavo Pradilla, Nelson M Oyesiku, C Arturo Solares
BACKGROUND: Endoscopic endonasal surgery of the skull base requires expert knowledge of the anatomy and a systematic approach. The vidian canal is regarded as a reliable landmark to localize the petrous internal carotid artery (pICA) near the second genu, which can be used for orientation in deep skull base approaches. There is controversy about the relationship between the vidian canal and the pICA. OBJECTIVE: To further establish the vertical relationship between the vidian canal and the pICA to aid in surgical approaches to the skull base...
February 21, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29474429/early-eocene-deep-sea-benthic-foraminiferal-faunas-recovery-from-the-paleocene-eocene-thermal-maximum-extinction-in-a-greenhouse-world
#2
Gabriela J Arreguín-Rodríguez, Ellen Thomas, Simon D'haenens, Robert P Speijer, Laia Alegret
The early Eocene greenhouse world was marked by multiple transient hyperthermal events. The most extreme was the Paleocene-Eocene Thermal Maximum (PETM, ~56 Ma), linked to the extinction of the globally recognised deep-sea benthic foraminiferal Velasco fauna, which led to the development of early Eocene assemblages. This turnover has been studied at high resolution, but faunal development into the later early Eocene is poorly documented. There is no widely accepted early Eocene equivalent of the Late Cretaceous-Paleocene Velasco fauna, mainly due to the use of different taxonomic concepts...
2018: PloS One
https://www.readbyqxmd.com/read/29473783/anterior-clinoidectomy-using-an-extradural-and-intradural-2-step-hybrid-technique
#3
Ali Tayebi Meybodi, Michael T Lawton, Sonia Yousef, Xiaoming Guo, Jose Juan González Sánchez, Halima Tabani, Sergio García, Jan-Karl Burkhardt, Arnau Benet
Anterior clinoidectomy is a difficult yet essential technique in skull base surgery. Two main techniques (extradural and intradural) with multiple modifications have been proposed to increase efficiency and avoid complications. In this study, the authors sought to develop a hybrid technique based on localization of the optic strut (OS) to combine the advantages and avoid the disadvantages of both techniques. Ten cadaveric specimens were prepared for surgical simulation. After a standard pterional craniotomy, the anterior clinoid process (ACP) was resected in 2 steps...
February 23, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29472992/different-intensities-of-basketball-drills-affect-jump-shot-accuracy-of-expert-and-junior-players
#4
Giuseppe Marcolin, Nicola Camazzola, Fausto Antonio Panizzolo, Davide Grigoletto, Antonio Paoli
Background: In basketball a maximum accuracy at every game intensity is required while shooting. The aim of the present study was to investigate the acute effect of three different drill intensity simulation protocols on jump shot accuracy in expert and junior basketball players. Materials & Methods: Eleven expert players (age 26 ± 6 yrs, weight 86 ± 11 kg, height 192 ± 8 cm) and ten junior players (age 18 ± 1 yrs, weight 75 ± 12 kg, height 184 ± 9 cm) completed three series of twenty jump shots at three different levels of exertion...
2018: PeerJ
https://www.readbyqxmd.com/read/29471048/new-innovative-method-relating-guided-surgery-to-dental-implant-placement
#5
Marie-Alix Fauroux, Marie De Boutray, Eve Malthiéry, Jacques-Henri Torres
INTRODUCTION: Companies selling dental implant guided systems mostly offer similar surgical guides. The purpose of this paper is to present an innovative guided surgery system which originality lies in its guidance device, and to report the author's experience in using this system for dental implant surgery. TECHNICAL PROTOCOL: Two parallel tubes on either side of the drilling axis guide the successive drills and the implant placement. As a result of the lateral guidance, there is no friction of the drills on the surgical guide which would damage it or contaminate the drilling hole with particles torn out from the guide...
February 19, 2018: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29469888/compact-optical-fiber-temperature-sensor-with-high-sensitivity-based-on-liquid-filled-silica-capillary-tube
#6
Yu Mao, Yuxi Zhang, Ruikai Xue, Yi Liu, Kunjian Cao, Shiliang Qu
We propose a highly sensitive fiber temperature sensor based on a section of liquid-sealed silica capillary tube inserted in a single-multi-single-mode fiber structure. The liquid polymer is filled into the silica capillary tube through two micro-holes drilled by a femtosecond laser. Then the micro-holes are blocked by UV curable adhesive with ultra-small volume. Obvious Mach-Zehnder interference peaks were shown in its transmission spectrum. The proposed fiber temperature sensor can be reliably used for actual point detection owing to its high sensitivity (8...
February 10, 2018: Applied Optics
https://www.readbyqxmd.com/read/29469347/-mri-findings-of-cerebral-schistosomiasis-in-acute-stage%C3%AF-establishment-of-experimental-model-of-acute-cerebral-schistosomiasis-with-rabbits
#7
Ge Yu-Xi, Zhang Lian-He, Yan Gen, Zhang Jian-Feng, Pan Yong-Ming, Xuan Ying-Hua
OBJECTIVE: To establish an experimental model of acute cerebral schistosomiasis japonica and explore the MRI manifestations of acute cerebral schistosomiasis. METHODS: Rabbits were divided into 3 groups with 10 rabbits in each group. The rabbits in the experimental group were directly injected with suspension fluid of Schistosoma japonicum eggs (0.9 mg, 1 ml) by the cranial drilling method, those in the negative control group were given saline (1 ml) by the same method above-mentioned, and those in the blank control group were not given any treatment...
June 26, 2017: Zhongguo Xue Xi Chong Bing Fang Zhi za Zhi, Chinese Journal of Schistosomiasis Control
https://www.readbyqxmd.com/read/29465606/test-retest-reliability-and-concurrent-validity-of-athletic-performance-combine-tests-in-6-15-year-old-male-athletes
#8
Zachary M Gillen, Amelia A Miramonti, Brianna D McKay, Todd J Leutzinger, Joel T Cramer
Athletic performance combine tests are used by high school, collegiate, and professional American football programs to evaluate performance; however, limited evidence is available on performance combine test results in youth athletes. The purposes of this study were to report test-retest reliability statistics and evaluate concurrent validity among combine performance tests in 6-15-year olds male athletes. Sixty-nine young male athletes (mean ± SD; age = 10.9 ± 2.1-years, height = 154.4 ± 13.6cm, body mass = 46...
February 15, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29464287/insertion-torque-values-and-success-rates-for-paramedian-insertion-of-orthodontic-mini-implants-a-retrospective-study
#9
Bruno Di Leonardo, Björn Ludwig, Jörg Alexander Lisson, Luca Contardo, Rossano Mura, Jan Hourfar
OBJECTIVES: Orthodontic mini-implants (OMIs) are a reliable method to provide temporary orthodontic anchorage. We hypothesized that there is an optimal insertion torque (<10 Ncm) that can be used to ensure the success of self-drilling OMIs in the paramedian region. PATIENTS AND METHODS: Included were 40 (26 females, 14 males) consecutive patients requiring palatal skeletal anchorage. Mean age was 17.3 years (range 11.0-44.6 years) for female patients and 15.7 years (range 10...
February 20, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/29462736/use-of-a-pediatric-craniotome-drill-for-cervical-and-thoracic-spine-decompression-safety-and-efficacy
#10
Christopher Elia, Omid R Hariri, Jason Duong, Fanglong Dong, Raed Sweiss, Dan Miulli
INTRODUCTION: Laminectomy utilizing a high-speed drill with an unprotected cutting drill bit can be rapid and effective, but it has been associated with known complications. Another technique utilizes a pediatric craniotome drill with the footplate attachment. Currently, there are no studies comparing clinical outcomes between these two stated decompressive techniques. METHODS: A retrospective review was conducted at a single institution. Two cohorts of patients were considered based on the technical method of laminectomy for decompression...
February 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29459925/investigation-of-hydrophobic-substrates-for-solution-residue-analysis-utilizing-an-ambient-desorption-liquid-sampling-atmospheric-pressure-glow-discharge-microplasma
#11
Htoo W Paing, R Kenneth Marcus
A practical method for preparation of solution residue samples for analysis utilizing the ambient desorption liquid sampling-atmospheric pressure glow discharge optical emission spectroscopy (AD-LS-APGD-OES) microplasma is described. Initial efforts involving placement of solution aliquots in wells drilled into copper substrates, proved unsuccessful. A design-of-experiment (DOE) approach was carried out to determine influential factors during sample deposition including solution volume, solute concentration, number of droplets deposited, and the solution matrix...
February 20, 2018: Analyst
https://www.readbyqxmd.com/read/29457232/tackling-obesity-and-disease-the-culprit-is-sugar-the-response-is-legal-regulation
#12
Lawrence O Gostin
It is staggering to observe the new normal in America: 37.9 percent of adults are obese, and 70.7 percent are either obese or overweight. One out of every five minors is obese. The real tragedy, of course, is the disability, suffering, and early death that devastates families and communities. But all of society pays, with the annual medical cost estimated at $147 billion. The causal pathways are complex, but if we drill down, sugar is a deeply consequential pathway to obesity, and the single greatest dietary source is sugar-sweetened beverages (SSBs)...
January 2018: Hastings Center Report
https://www.readbyqxmd.com/read/29456635/clinical-effect-of-platelet-rich-fibrin-on-the-preservation-of-the-alveolar-ridge-following-tooth-extraction
#13
Yingdi Zhang, Zheng Ruan, Minhua Shen, Luanjun Tan, Weiqin Huang, Lei Wang, Yuanliang Huang
The aim of the present study was to evaluate the clinical efficacy of platelet-rich fibrin (PRF) in preserving the alveolar ridge following human tooth extraction. A total of 28 patients were divided into two groups: The experimental and control groups (n=14 each). Following tooth extraction, the experimental group was implanted with PRF membrane, whereas the control group was not. The gingival healing effect was assessed at 7 days, 1 and 3 months later. Cone-beam computed tomography was performed immediately and at 3 months following tooth extraction...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29456066/slight-reduction-in-the-insertion-depth-for-an-all-suture-anchor-decreases-cyclic-displacement-in-the-shoulder-glenoid
#14
John A Ruder, Ephraim Y Dickinson, Nahir Habet, Richard D Peindl, Donald F D'Alessandro, James E Fleischli
PURPOSE: To determine if the depth of anchor insertion affects the biomechanical performance of a 1.5-mm all-suture anchor in glenoid bone. METHODS: A 1.5-mm all-suture anchor was tested in 8 matched pairs of human cadaver fresh-frozen glenoids. Anchors were inserted at 6 different locations and tested at 3 different depths: 21 mm (preset drilling depth), 17 mm, and 13 mm. Cyclic loading and destructive testing was performed. Displacement after 100 and 200 cycles, along with ultimate failure strength, was determined...
February 15, 2018: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/29455912/unperturbed-high-spatial-resolution-measurement-of-radon-222-in-soil-gas-depth-profile
#15
K Mitev, Ch Dutsov, S Georgiev, T Boshkova, D Pressyanov
This work presents a method for measuring the depth distribution of222 Rn activity in soil gas. The method is based on the capacity of polycarbonates to absorb222 Rn and on the possibility of performing sensitive measurements of222 Rn absorbed by the polycarbonates via liquid scintillation counting (LSC). The method is the following: cylindrical holes are drilled along a metal rod and Makrofol® N polycarbonate foils enclosed in polyethylene envelopes are placed in each hole. The rod is driven into the soil and kept for a certain time...
February 15, 2018: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/29454272/dealing-with-the-nucleus-during-cell-migration
#16
REVIEW
Francisco J Calero-Cuenca, Cátia S Janota, Edgar R Gomes
The position of the nucleus within cells is a key event during cell migration. The movement and positioning of the nucleus strongly impacts cell migration. Notably, the last two years largely contributed to emphasise the dynamicity of the nucleus-cytoskeleton interactions that occur during cell migration. Nuclei are under continuous tension from opposing intracellular forces and its tether to the cytoskeleton can be regulated at different levels. Interestingly, it was showed how nuclear positioning is highly related to cell function...
February 14, 2018: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/29451904/phytoforensics-trees-as-bioindicators-of-potential-indoor-exposure-via-vapor-intrusion
#17
Jordan L Wilson, V A Samaranayake, Matt A Limmer, Joel G Burken
Human exposure to volatile organic compounds (VOCs) via vapor intrusion (VI) is an emerging public health concern with notable detrimental impacts on public health. Phytoforensics, plant sampling to semi-quantitatively delineate subsurface contamination, provides a potential non-invasive screening approach to detect VI potential, and plant sampling is effective and also time- and cost-efficient. Existing VI assessment methods are time- and resource-intensive, invasive, and require access into residential and commercial buildings to drill holes through basement slabs to install sampling ports or require substantial equipment to install groundwater or soil vapor sampling outside the home...
2018: PloS One
https://www.readbyqxmd.com/read/29447326/prospective-study-on-the-outcome-of-the-sphenoid-drill-out-procedure
#18
T Van Zele, B Pauwels, F Dewaele, P Gevaert, C Bachert
BACKGROUND: Chronic sphenoid sinusitis refractory to both medical therapy and sphenoidotomy requires a more extended intervention based on the principles of salvage surgery. Our aim is to describe the sphenoid drill out technique as a sphenoid salvage intervention and to outline its implications on clinical outcome and quality of life. METHODOLOGY: 12 patients with chronic sphenoiditis undergoing a sphenoid drill out procedure were examined by nasal endoscopy preoperatively and postoperatively for one year...
February 15, 2018: Rhinology
https://www.readbyqxmd.com/read/29445141/continuous-depth-profile-of-the-rock-strength-in-the-nankai-accretionary-prism-based-on-drilling-performance-parameters
#19
Yohei Hamada, Manami Kitamura, Yasuhiro Yamada, Yoshinori Sanada, Takamitsu Sugihara, Saneatsu Saito, Kyaw Moe, Takehiro Hirose
A new method for evaluating the in situ rock strength beneath the seafloor is proposed and applied to the Nankai Trough accretionary prism. The depth-continuous in situ rock strength is a critical parameter for numerous studies in earth science, particularly for seismology and tectonics at plate convergence zones; yet, measurements are limited owing to a lack of drilled cores. Here, we propose a new indicator of strength, the equivalent strength (EST), which is determined only by drilling performance parameters such as drill string rotational torque, bit depth, and string rotational speed...
February 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29443816/effects-of-osteotomy-lengths-on-the-temperature-rise-of-the-crestal-bone-during-implant-site-preparation
#20
Zvonimir Katic, Tomislav Jukic, David Stubljar
AIM: To compare temperatures of the crestal bone during implant site preparation for different osteotomy lengths and implant systems. METHODS: Bovine ribs were used to simulate the cortical bone of the human mandible. Three different implant systems were tested: Astra Tech, Ankylos, and XiVE. Six drills per system were performed, meaning each drilling set was used for 2 drills per 3 osteotomy lengths (8, 12, and 16 mm). Drilling force, drilling speed, drilling length, and temperature were recorded...
February 13, 2018: Implant Dentistry
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