by Yulia Salamatova  and Andreja Packard

Received: 24 June 2021;  Published: 20 December 2021;  doi: 10.21926/obm.neurobiol.2104111

Circadian rhythms are 24-hour cycles of physical, mental, and behavioral changes regulated and maintained by the internal primary circadian clock, however modifiable by a number of external cues or “zeitgebers”, the most powerful one being light. Core set of clock genes regulate the whole-body metabolism and transcription of over 40% of mammalian RNA, including that for drug transporters, binding and metabolizing proteins responsible for regulation of pharmacokinetics of vast array of medications. Growing amount of [...]

by Melissa M Howard  , Justin Phillips  , Stefan Henley  , Sarah E. Green  and Emily R. Rosario

Received: 01 November 2020;  Published: 07 July 2021;  doi: 10.21926/obm.geriatr.2103175

Anterior cervical osteophytes are common in the geriatric population. Dysphagia can occur in individuals suffering from these spinal abnormalities. Surgical intervention is an uncommon course of treatment for these patients, but is often utilized as a last resort with the hope of swallow recovery. The purpose of this article is to highlight a unique case study documenting the required treatment course for dysphagia associated with osteophytes and subsequent osteophytectomy. We review current literature of both cons [...]

by Satoshi Migita  and Tomoya Yamaguchi

Received: 18 September 2019;  Published: 14 January 2020;  doi: 10.21926/rpm.2001003

The surface roughness of titanium could regulate various cellular functions such as survival and growth. In the context of cell adhesion to materials, cell spreading and cell shape are also closely linked to various cellular functions. Previously, we found that Ti substrate with a 100-nm scale surface roughness reduced cell survival. However, effects of surface roughness on cell shape were not investigated. Herein, we quantified the initial adhesion behavior of osteoblasts on a Ti substrate with ~100 nm scale surfa [...]

by Manal Al-Eid  , Lianhui Ding  , Donya Sewdan  , Emad N. AL-Shafei  , Rasha Al-Ghamdi  , Abdulaziz Alqarawi  and Essa Al naimi

Received: 13 August 2022;  Published: 17 October 2022;  doi: 10.21926/cr.2204035

Parent ZSM-5 and Ga-modified ZSM-5 catalysts with different Si/Al ratios and particle sizes were prepared. The physicochemical properties of the prepared catalysts were investigated by performing X-ray powder diffraction analysis, BET surface area analysis, and NH3-TPD analysis. The performance of the aromatization reaction of the prepared catalysts was evaluated with 1-hexane as a model compound. The zeolite catalysts with a low SiO2/Al2O3 ratio possessed better activity than those with a high SiO2/Al2O3 ratio. Ga [...]

by Joseph P. Green  , Steven Jay Lynn  , Olivia J. Green  , Victoria R. Bradford  and Rouhangiz Rasekhy

Received: 18 February 2020;  Published: 11 May 2020;  doi: 10.21926/obm.icm.2002029

Since Charcot [1], researchers and theorists have associated hypnotic responsiveness with dissociation. However, contemporary researchers have typically not documented impressive or statistically significant correlations between the most commonly used measure of dissociation, the Dissociative Experiences Scale-II [2, 3] and hypnotic responsiveness. We examined the ability of two measures of non-pathological dissociation, which have received scant attention in the hypnosis literature, the Wessex Dissociation Scale ( [...]

by Selin Galatalı  , Damla Ekin Özkaya  , Taner Mercan  and Ergun Kaya

Received: 27 July 2023;  Published: 19 October 2023;  doi: 10.21926/obm.genet.2304198

In the face of rapid population growth worldwide, humanity's need for plant and animal products is increasing. In this regard, the organizations in charge of production make production and consumption forecasts for the future and try to accelerate the work aimed at increasing production. There are various ways of increasing production. The first of these is the improvement of cultivation techniques, the expansion of irrigated agricultural areas, and the effective control of diseases and pests. The second is to find [...]

by Carsten Unglaub  , Johannes Thiessen  and Andreas Jess

Received: 27 September 2022;  Published: 03 January 2023;  doi: 10.21926/cr.2301001

Fischer-Tropsch reactors operated in a steady state suffer from a low pore effectiveness factor and a high methane selectivity caused by internal mass transfer limitations due to the accumulation of long-chain hydrocarbons inside the catalyst pores. Therefore, an alternating process switching between Fischer-Tropsch synthesis (FTS) and drainage of the pores by hydrogenolysis is proposed. The periodical cracking of the accumulated waxes within the (partially) filled pores, realized by a switch from syngas (H2, CO) t [...]

by Wilson C. Chin  , Xiaoying Zhuang  and Jamie A. Chin

Received: 07 September 2024;  Published: 06 December 2024;  doi: 10.21926/jept.2404023

Our new approach to MWD mud pulse telemetry offers significant increases over conventional data rates. Using waveguide acoustics, we show that common drilling communications channels support carrier frequencies exceeding several hundred Hertz. Such signals are prone to attenuation over large drill pipe distances. Low power, self-spinning “turbosirens” are designed, providing high torque and rotation rate performance at all flow rates without electric or hydraulic motor drives. The sirens rotate, drawing only on the [...]

by K. Jason Crandall  , Matthew Shake  and Uta Ziegler

Received: 11 April 2019;  Published: 04 July 2019;  doi: 10.21926/obm.icm.1903041

Background: Older adults experience normative age-graded declines in physical and cognitive performance and many must manage one or more chronic conditions. Exercise programs can help to improve both their physical health and their knowledge, skill, and confidence in managing aspects of their own healthcare, yet a significant barrier is motivating them to adhere to such programs. The purpose of this investigation was to evaluate the impact of a game-centered mobile app (Bingocize®) on older adults' knowledge [...]

by Holly Hazlett-Stevens

Received: 20 April 2018;  Published: 29 September 2018;  doi: 10.21926/obm.icm.1804023

Background: Mindfulness-Based Stress Reduction (MBSR) is an evidence-based intervention developed to teach mindfulness meditation to a wide range of patients. Although the efficacy of MBSR has been established for a variety of medical and psychiatric conditions, measured outcomes rarely include physical symptoms related to anxiety, depression, and/or stress. The current study presents a secondary analysis of data obtained from patients seeking MBSR for symptoms of anxiety, depression, and/or other stress-related co [...]