SciCombinator

Discover the most talked about and latest scientific content & concepts.

Concept: Professional wrestling

27

To analyse the type and location of defects in HyFlex CM instruments after clinical use in a graduate endodontic programme and to examine the impact of clinical use on their metallurgical properties.

Concepts: Professional wrestling, Helvetica

0

Times like these test the soul. We are now working for health equity in a time of overt, aggressive opposition. Yet, hope in the face of overwhelming obstacles is the force that has driven most of the world’s progress toward equity and justice. Operationalizing real-world hope requires an affirmative vision, an expectation of success, broad coalitions taking action cohesively, and frequent measures of collective impact to drive rapid-cycle improvement.

Concepts: Psychology, Mind, Classical mechanics, Face, Soul, Jainism, Professional wrestling, Fighting game

0

The Legacy Biorepository is a College of American Pathologists-accredited biorepository operating within a seven-hospital healthcare system, with a decade’s experience in specimen accrual, storage, and distribution. While standardization of our practices through accreditation remains a priority, we along with others face challenges with regard to sustainability. Purposeful changes in our consent process, which we term “progressive consent,” are expected to improve sustainability and operational flexibility while increasing our scientific impact.

Concepts: Professional wrestling

0

This paper presents an experimental and numerical study of Kuru grey granite impacted with a seven-buttons drill bit mounted on an instrumented drop test machine. The force versus displacement curves during the impact, so-called bit-rock interaction (BRI) curves, were obtained using strain gauge measurements for two levels of impact energy. Moreover, the volume of removed rock after each drop test was evaluated by stereo-lithography (three-dimensional surface reconstruction). A modified version of the Holmquist-Johnson-Cook (MHJC) material model was calibrated using Kuru granite test results available from the literature. Numerical simulations of the single drop tests were carried out using the MHJC model available in the LS-DYNA explicit finite-element solver. The influence of the impact energy and additional confining pressure on the BRI curves and the volume of the removed rock is discussed. In addition, the influence of the rock surface shape before impact was evaluated using two different mesh geometries: a flat surface and a hyperbolic surface. The experimental and numerical results are compared and discussed in terms of drilling efficiency through the mechanical specific energy.This article is part of the themed issue ‘Experimental testing and modelling of brittle materials at high strain rates’.

Concepts: Fundamental physics concepts, Measurement, Thermodynamics, Test method, Drill, Pressure, Sound pressure, Professional wrestling

0

In this Part 2 of a three-part research paper, we further our interpretations from our hermeneutic study examining how having a child who has experienced cancer had an impact on the relationship between the parents. In Part 1, we identified the focus of the study and provided background to the topic. We also described the research question, method, and design before offering an interpretive analysis of couples whose relationships survived, thrived, or demised. In this article, we extend the interpretations under an overarching theme of “taking one for the team.” Here, we discuss issues of changes in focus and roles, and the notions of tag teaming, protection, intimacy, and grieving. We examine the phenomenon of putting relationships on hold, then finding reclamation later. In Part 3, we offer implications of these findings for other parents in similar situations and for health care professionals working with these families.

Concepts: Family, Health care, Health care provider, Research, Interpersonal relationship, Mother, Father, Professional wrestling

0

We tried to evaluate the accuracy of the heel drop test in patients with suspected appendicitis and tried to develop a new clinical score, which incorporates the heel drop test and other parameters, for the diagnosis of this condition.

Concepts: Sample size, Physician, Psychometrics, C++, Professional wrestling

0

Some military specialists wear body armour that is more similar to police armour and provides protection from ammunition fired from pistols. During ballistic testing, these armours are mounted on a standardised type of modelling clay and the back face signature (BFS; depth of depression) formed as a result of the non-perforating impact event on to the armour is measured. This study investigated the effect of impact angle on the BFS and on the deformation of the bullet.

Concepts: Angle, Impact event, Firearm, Dinosaur, Impact crater, Professional wrestling, Cartridge, Armour

0

After initial heel contact, the rearfoot everts and causes medial deviation of the center of pressure (CoP). Although rearfoot angle in single-limb stance has been associated with forefoot varus (FV) ≥ 8°, medial CoP deviation has not.

Concepts: Fundamental physics concepts, Foot, Germany, Face, Professional wrestling, Airfoil, James Woods, Symmetry set

0

Cerebrovascular reactivity represents the capacity of the cerebral circulation to raise blood flow in the face of increased demand, and may be reduced in some clinical and physiological conditions. We tested the hypothesis that the hypercapnia-induced increase in cerebral perfusion is attenuated during heat stress (HS) compared to normothermia (NT), and this response is further reduced during the combined challenges of HS and lower body negative pressure (LBNP).

Concepts: Blood, Physiology, Heart, The Canon of Medicine, Hematology, Face, Vacuum, Professional wrestling

0

Abstract Dorsiflexion sport shoes aim to increase jumping capacity and speed by means of a lower position of the heel in comparison with the forefoot, favouring additional stretching of the ankle plantar flexors. In previous studies, contradictory results have been found on the benefits of using this type of shoe. With the aim of comparing a dorsiflexion sport shoe model (DF) with a conventional sport shoe (CS), 41 participants performed a countermovement jump (CMJ) test and an agility test (MAT) with both models of shoe. There were no significant differences in the jump test [CS=35.3 cm (6.4) and DF=35.6 cm (6.4), P>0.05]. In the agility test, the conventional shoe obtained better results than the model with dorsiflexion with regard to time taken to complete the circuit [CS=6236 ms (540) and DF=6377 ms (507), P<0.05)]. In spite of producing pre-stretching of the plantar muscles, the DF sport shoes were not effective for improving either jump power or agility in a specific test.

Concepts: Das Model, Shoe, Footwear, Dorsiflexion, Plantarflexion, Professional wrestling, Athletic shoe, Jumping