by Keith A. Wollen  and John W. Hoyt

Received: 15 February 2019;  Published: 18 April 2019;  doi: 10.21926/obm.geriatr.1902048

Background: Cognitive abilities in Alzheimer’s Disease are usually examined by formal tests conducted in a laboratory or facility. Such tests are useful for determining the severity of the disease but do not indicate the types of cognition exhibited in the daily lives of patients. This study shows significant preservation of cognition and quality of life in the daily routine of a woman with severe Alzheimer’s who was given multiple therapeutic interventions. Alzheimer’s disease involves multiple d [...]

by Christopher K. Russell  , Arunima Saxena  and Jeffrey T. Miller

Received: 28 March 2023;  Published: 06 June 2023;  doi: 10.21926/cr.2302018

Previous studies on the conversion of olefins to aromatics with bifunctional Ga- or Zn-ZSM-5 catalysts have concluded that benzene, toluene, and xylenes (BTX) yields are significantly higher than for ZSM-5 alone. These results were attributed to the higher aromatic dehydrogenation rate of Ga or Zn. In this study, a highly active, bifunctional PtZn/SiO2 (1.3 wt% Pt, 2.6 wt% Zn) with H-ZSM-5 (Si/Al = 40) catalyst is investigated for propene aromatization at 723 K and 823 K. At low to moderate propene conversions, in [...]

by Nicola Cantasano

Received: 12 June 2022;  Published: 05 January 2023;  doi: 10.21926/aeer.2301003

Posidonia oceanica (Linnaeus) Delile is one of the most important endemic species of the Mediterranean Sea. The long phylogenetic pathway of this species deserves special attention because its evolutionary history allows us to think back over the debated issue of life evolution on Earth. Hence, this marine plant, by terrestrial origin, was born from an ancient ancestor named Posidonia cretacea Hosius & Von der Marck. This seagrass species, currently extinct, lived in the coastal waters of the Tethys Ocean about [...]

by Emily Beitzell  , Purnaja Podduturi  , Megan Hook  , Amelia Jones  , Haley McKeen  and Miriam Liss

Received: 03 October 2021;  Published: 01 December 2021;  doi: 10.21926/obm.icm.2104053

The coronavirus (COVID-19) pandemic has produced a global mental health crisis and many individuals have obsessive thoughts and worry about COVID-19 which may, both directly and indirectly, relate to more general anxiety. This study explored anxiety sensitivity and mindful awareness as mediators in the relationship between COVID-19 obsession and general anxiety. College student participants (N = 172) completed the Obsession with COVID-19 scale, the Anxiety Sensitivity Index, the awareness subscale of the Five Facto [...]

by Nasim Foroughi  , Brooke Donnelly  , Mark Williams  , Sloane Madden  , Michael Kohn  , Simon Clarke  , Perminder Sachdev  , Stephen Touyz  and Phillipa Hay

Received: 01 June 2021;  Published: 30 September 2021;  doi: 10.21926/obm.neurobiol.2103107

To compare neural responses to high and low-energy food images in patients with Anorexia Nervosa (AN) and an age-matched Healthy Control (HC) group. 25 adolescents with AN and 21 HCs completed a diagnostic interview, self-report questionnaires and fMRI, during which they viewed food images evoking responses of disgust, happiness, or fear. Following whole brain analyses, neural responses in six regions of interest were examined in a series of between-group contrasts, across the three emotive categories. Compared to [...]

by Hiromi Matsuhashi

Received: 28 April 2022;  Published: 06 June 2022;  doi: 10.21926/cr.2202015

Solid base catalysts consisting of MgO modified with 10 mol% ZnO (ZnO/MgO) were prepared by depositing zinc(II) acetylacetonate (Zn(acac)2) in polar and nonpolar organic solvents on the surface of MgO and Mg(OH)2. The process was followed by thermal decomposition in air at 773 K over a period of 3 h. The activity of MgO modified with Zn(acac)2 for base-catalyzed retroaldol reaction (the decomposition of diacetone alcohol (4-hydroxy-4-methyl-2-pentanone) to acetone) at 299 K was higher than the activity of unmodifie [...]

by Paul Taglieri  , Paul Milham  , Paul Holford  and R. John Morrison

Received: 07 November 2019;  Published: 13 April 2020;  doi: 10.21926/acr.2002005

Despite extensive research, the behaviour of the key nutrient element, phosphorus (P), in soil is not yet fully understood. This study focussed on the outstanding issue of the co-adsorption of protons (H+) and P by soils. We developed a congruent set of measures to determine the net H+:P co-adsorption ratio and tested it on goethite, for which a ratio of 1.6:1 had been estimated under CO2-free conditions for additions of NaH2PO4. Under our conditions, and using additions of KH2PO4, the net H+:P co-adsorption ratio [...]

by Julia Baumann  , Eva Bönzli  , Franziska Wandrey  and Torsten Grothe

Received: 09 December 2024;  Published: 03 April 2025;  doi: 10.21926/obm.geriatr.2502305

The complex process of skin aging results in noticeable changes, including decreased collagen content, reduced elasticity, and decreased hydration. Interventions to preserve or restore collagen, a key structural protein, may help counteract these signs. The concept of "beauty from within” through nutritional supplements is of growing interest, particularly the use of plant-based alternatives to animal-derived or synthetic collagen. This study investigated the anti-aging potential of an extract from Moldavian dragon [...]

by Traci Jarrett  , Ilana Haliwa  , Jennifer Ludrosky  , Ashley Mason  , Gretchen Prather  , Brittney Barlett  , Amy Snodgrass  and Geri Dino

Received: 30 November 2022;  Published: 13 April 2023;  doi: 10.21926/obm.icm.2302019

Teacher burnout is one of the primary drivers of turnover. Skills such as improved classroom management have been shown to mitigate teacher burnout. COVID-19 created classroom disruption and an unprecedented youth mental health crisis. This study examined the effectiveness of a school-based mindfulness training at improving classroom management self-efficacy and reducing teacher burnout during COVID-19. Elementary school personnel were invited to participate in two versions of Kidding Around Yoga training and to im [...]

by Jiankang Jin  , Shumei Song  and Jaffer A. Ajani

Received: 30 June 2020;  Published: 16 September 2020;  doi: 10.21926/obm.genet.2003116

Gastric adenocarcinoma (GAC) is among the three most common cancers in the world. The majority of GAC patients are diagnosed in an advanced stage and have a median survival of ~9 months. There are limited effective therapeutic strategies available in the clinic and currently U.S. Food and Drug Administration (FDA) approved immune therapy is programmed death-1 (PD-1) antibodies (e.g. pembrolizumab) but only a few patients seem to benefit. Transformation to cancer occurs when multiple genes and cellular pathways are [...]