by Fabrice Debbasch

Received: 15 October 2019;  Published: 06 January 2020;  doi: 10.21926/rpm.2001002

A relativistic Wigner function for free Discrete Time Quantum Walks (DTQWs) on the square 2D space-time lattice is defined. The transport equation obeyed by the relativistic Wigner function is derived in terms of discrete derivatives and degenerates in the continuum limit into the transport equation obeyed by the Wigner function of 2D Dirac fermions. The first corrections to the continuous equation induced by the discreteness of the lattice are also determined and the similarities with non-quantum relativistic tran [...]

by Syuma Ichida  , Daisuke Mori  , Sou Taminato  , Tao Zhang  , Yasuo Takeda  , Osamu Yamamoto  and Nobuyuki Imanishi

Received: 17 February 2022;  Published: 15 March 2022;  doi: 10.21926/jept.2201009

Acidic aqueous lithium-air batteries are attractive candidates for use as energy sources in electric vehicles because of their high energy and power densities and ability to operate under ambient conditions. An aqueous lithium-air battery with an acetic acid catholyte has a high theoretical energy density of 1,478 Wh kg-1, and the reaction product is soluble in the catholyte. In this study, we have studied the cell performance of a Li/interlayer electrolyte/NASICON-type solid lithium-ion conductor/acetic acid catho [...]

by Joseph V. Pergolizzi  , Robert Taylor  , Robert B. Raffa  and Jo Anne LeQuang

Received: 27 July 2018;  Published: 28 December 2018;  doi: 10.21926/obm.icm.1804038

Background: The leaves of Mitragyna speciosa (kratom), a tropical tree that is indigenous to Southeast Asia, have been used traditionally to increase stamina, as a digestive aid, and as an analgesic. Kratom use is now increasingly popular in the rest of the world because of easy availability through the Internet and real, or perceived, views of efficacy and safety. Methods: PubMed and MedLine searches were conducted of published articles available in English. Results: Mitragynine and 7-hydroxymitragynine are the pr [...]

by Chenggong Han  , Hancong Tang  , Shuyuan Lou  , Yuan Gao  , Min Ho Cho  and Shili Lin

Received: 23 May 2018;  Published: 14 October 2018;  doi: 10.21926/obm.genet.1804041

Whole genome profiling of differential DNA methylation between diseased and normal samples has significant implications in research to understand the role of epigenetic regulations of cells. In recent years, the development of bisulfite sequencing (BS-seq)-based molecular technology has enabled the measurement of DNA methylation at a nucleotide resolution throughout the genome. Given the availability of this new type of DNA methylation data, certain features challenge traditional analytical methods such as the Fish [...]

by Alyssa M. Krueger  , Kelsey Smith  , Arielle Pollock  , Christine Dunkel Schetter  and Nicole E. Mahrer

Received: 24 December 2023;  Published: 30 April 2024;  doi: 10.21926/obm.icm.2402025

Residential and nonresidential fathers are taking an increasingly greater role in their children’s lives, and father involvement predicts positive child outcomes across development. This study utilized data from a large sample of racially and ethnically diverse fathers of low to middle income (n = 1,112) to test if paternal stress is associated with lower father involvement in early infancy and whether perceived social support is protective. Exploratory analyses examined whether the effects of stress on father invo [...]

by Moira A. Law  , Pamela Pastirik  and Isdore Chola Shamputa

Received: 31 August 2022;  Published: 28 January 2023;  doi: 10.21926/obm.icm.2301009

The experience of loss due to death, illness, and social mitigation was inevitable during the COVID-19 pandemic. Mental health services are chronically difficult to access in Canada, and this barrier is further exacerbated when trying to access certified art therapists to deliver expressive arts therapy. This pilot project attempted to provide an alternative to this service through an interprofessional alliance with a professional artist and certified counselors. A small group (n = 6) of vulnerable youth who had su [...]

by Chris R. Lavers  , Travis Mason  , Jonathan Mazower  and Sarah Grig

Received: 29 October 2020;  Published: 09 July 2021;  doi: 10.21926/aeer.2103018

High-resolution satellite imagery permits acquisition of critical data to observe climate-change and environmental impact on conflict-impacted indigenous communities with co-existing socio-economic factors, often within unstable regimes. Conflict may prevent direct access in remote regions to validate civilian conflict actor evidence. In such cases use of remote sensing tools, techniques, and data are extremely important. Software-based imagery assessment can quantify radiometrically calibrated or Normalized Differ [...]

by David J. Epstein  and Aruna K. Subramanian

Received: 18 November 2018;  Published: 12 February 2019;  doi: 10.21926/obm.transplant.1901048

Background: Tuberculosis (TB) is a common infection with challenges in diagnosis and treatment. Management of TB in solid organ transplant (SOT) candidates and recipients poses unique challenges not seen in other populations. Questions and Recommendations: Latent TB infection (LTBI) is important to diagnose pre-transplant through history, physical examination, imaging, and laboratory tests. Tuberculin skin tests and interferon-gamma release assays are important tools but not sufficiently sensitive nor specific to d [...]

by Vidhula R Ahire  , Amit Kumar  , Sushma Bhosle  and Kaushala Prasad Mishra

Received: 22 September 2020;  Published: 14 May 2021;  doi: 10.21926/obm.genet.2102129

Ellagic acid (EA) is a polyphenol found in grapes, pomegranates, walnuts, etc. exhibits anti-cancer properties. The current study was conducted to understand the radiosensitizing role of EA on HeLa cells. Monotherapy of EA and radiation was initially studied on HeLa cells. The addition of EA before the radiation treatment subsequently made DNA more susceptible to damage thereby developing DNA beaks, which are known to be lethal for cell survival. This was evaluated by performing comet and γ-foci formation ass [...]

by Haruka Sawamura  , Kurumi Taniguchi  , Yuka Ikeda  , Ai Tsuji  , Yasuko Kitagishi  and Satoru Matsuda

Received: 16 November 2021;  Published: 08 March 2022;  doi: 10.21926/rpn.2201007

Immune checkpoints have been aggressively investigated for anti-cancer immunotherapy. The power of microbiota on the outcome of this immunotherapy has attracted much attention. For example, intestinal microorganisms play a key role in the effectiveness of programmed cell death 1 (PD1) and cytotoxic T lymphocyte-associated antigen 4 (CTLA4) blockade. Additionally, short-chain fatty acids produced in the gut may modulate anti-CTLA4 and anti-PD1 stimulated immune responses and their anti-tumor efficacy. Enhancing the [...]