Pediatrics

Andrews, John S.,DeAngelis, Catherine D. MediMedia Korea 1995 JAMA-Korea Vol.10 No.11

Sustainable Forestry: The Imperative of Soil Mapping in Forest Resource Inventory, Modelling and Management in Scotland, UK

Andrew John Nolan,Bill Rayner,Andy Kennedy,Christine Brown,David Donnelly,John Bell,David Henderson,Willie Towers,Richard Hewison,David Riach 한국토양비료학회 2014 한국토양비료학회 학술발표회 초록집 Vol.2014 No.6

Death and the Inoperative Community in the Works of Gabriel Garcia Marquez and Merlinda Bobis

( John Andrew M. Del Prado ) 부산외국어대학교 아세안연구원 2022 Suvannabhumi Vol.14 No.1

Gabriel García Márquez’s short story “The Handsomest Drowned Man in the World” [“El ahogado más hermoso del mundo,” 1968] and the novel Chronicle of a Death Foretold [Crónica de una muerte anunciada, 1981] and Merlinda Bobis’s novel Fish-Hair Woman (2012) and short story “O Beautiful Co-Spirit” (2021) feature unusual scenarios of death: the arrival of a drowned man’s corpse at an island; the inaction of the community to stop the foretold death of a supposedly-innocent man; a woman with long hair that can fetch dead bodies at the bottom of the village river; and a Filipino Catholic and a Malaysian Muslim working together to prepare an Italian Catholic’s corpse for a funeral. These narratives demand critical attention as all deaths make the community’s existence meaningful as they alter its social reality. Looking into the works of the aforementioned Colombian writer and Filipino writer and unveiling how death affects the community, this paper relies on Jean-Luc Nancy’s theory on death and inoperative community.

Gust durations, gust factors and gust response factors in wind codes and standards

John D. Holmes,Andrew C. Allsop,John D. Ginger 한국풍공학회 2014 Wind and Structures, An International Journal (WAS Vol.19 No.3

This paper discusses the appropriate duration for basic gust wind speeds in wind loading codes and standards, and in wind engineering generally. Although various proposed definitions are discussed, the 'moving average' gust duration has been widely accepted internationally. The commonly-specified gust duration of 3-seconds, however, is shown to have a significant effect on the high-frequency end of the spectrum of turbulence, and may not be ideally suited for wind engineering purposes. The effective gust durations measured by commonly-used anemometer types are discussed; these are typically considerably shorter than the 'standard' duration of 3 seconds. Using stationary random process theory, the paper gives expected peak factors, gu, as a function of the non-dimensional parameter (T/ τ), where T is the sample, or reference, time, and τ is the gust duration, and a non-dimensional mean wind speed, U ̅.T /Lu, where U ̅. is a mean wind speed, and Lu is the integral length scale of turbulence. The commonly-used Durst relationship, relating gusts of various durations, is shown to correspond to a particular value of turbulence intensity Iu, of 16.5%, and is therefore applicable to particular terrain and height situations, and hence should not be applied universally. The effective frontal areas associated with peak gusts of various durations are discussed; this indicates that a gust of 3 seconds has an equivalent frontal area equal to that of a tall building. Finally a generalized gust response factor format, accounting for fluctuating and resonant along-wind loading of structures, applicable to any code is presented.

The Role of Ribose on Oxidative Stress During Hypoxic Exercise: A Pilot Study

John G. Seifert,Andrew W. Subudhi,Min-Xin Fu,Karen L. Riska,Jeff C. John,Linda M. Shecterle,John A. St. Cyr 한국식품영양과학회 2009 Journal of medicinal food Vol.12 No.3

Oxygen free radicals are produced during stress, are unstable, and potentially interact with other cellular components or molecules. This reactivity can influence cellular function, including a prolongation in tissue recovery following exercise. We tested the effect of ribose (d-ribose), a pentose carbohydrate, in a double-blinded, crossover study on markers of free radical production during hypoxic exercise. Seven healthy volunteers cycled at their lactate threshold for 25 minutes while inhaling 16% O2 with a subsequent 60-minute resting period at room air. Subjects ingested either placebo or 7g of ribose in 250mL of water before and after the exercise session. Urinary malondialdehyde (MDA) and plasma reduced glutathione levels increased significantly during placebo ingestion (0.2±0.03nM/mg and 0.26±0.29μM, respectively) but were lower with ribose supplementation (0.04±0.03nM/mg and 0.38±0.29μM, respectively; P<.05). Uric acid levels were similar between groups (ribose vs. placebo, 4.55±0.06mg/dL vs. 4.67±0.06mg/dL). Ribose demonstrated a beneficial trend in lower MDA and reduced glutathione levels during hypoxic stress.

Gust durations, gust factors and gust response factors in wind codes and standards

Holmes, John D.,Allsop, Andrew C.,Ginger, John D. Techno-Press 2014 Wind and Structures, An International Journal (WAS Vol.19 No.3

This paper discusses the appropriate duration for basic gust wind speeds in wind loading codes and standards, and in wind engineering generally. Although various proposed definitions are discussed, the 'moving average' gust duration has been widely accepted internationally. The commonly-specified gust duration of 3-seconds, however, is shown to have a significant effect on the high-frequency end of the spectrum of turbulence, and may not be ideally suited for wind engineering purposes. The effective gust durations measured by commonly-used anemometer types are discussed; these are typically considerably shorter than the 'standard' duration of 3 seconds. Using stationary random process theory, the paper gives expected peak factors, $g_u$, as a function of the non-dimensional parameter ($T/{\tau}$), where T is the sample, or reference, time, and ${\tau}$ is the gust duration, and a non-dimensional mean wind speed, $\bar{U}.T/L_u$, where $\bar{U}$ is a mean wind speed, and $L_u$ is the integral length scale of turbulence. The commonly-used Durst relationship, relating gusts of various durations, is shown to correspond to a particular value of turbulence intensity $I_u$, of 16.5%, and is therefore applicable to particular terrain and height situations, and hence should not be applied universally. The effective frontal areas associated with peak gusts of various durations are discussed; this indicates that a gust of 3 seconds has an equivalent frontal area equal to that of a tall building. Finally a generalized gust response factor format, accounting for fluctuating and resonant along-wind loading of structures, applicable to any code is presented.

The Role of Ribose on Oxidative Stress During Hypoxic Exercise: A Pilot Study

Seifert, John G.,Subudhi, Andrew W.,Fu, Min-Xin,Riska, Karen L.,John, Jeff C.,Shecterle, Linda M.,Cyr, John A. St. The Korean Society of Food Science and Nutrition 2009 Journal of medicinal food Vol.12 No.3

Oxygen free radicals are produced during stress, are unstable, and potentially interact with other cellular components or molecules. This reactivity can influence cellular function, including a prolongation in tissue recovery following exercise. We tested the effect of ribose (d-ribose), a pentose carbohydrate, in a double-blinded, crossover study on markers of free radical production during hypoxic exercise. Seven healthy volunteers cycled at their lactate threshold for 25 minutes while inhaling 16% $O_2$ with a subsequent 60-minute resting period at room air. Subjects ingested either placebo or 7 g of ribose in 250mL of water before and after the exercise session. Urinary malondialdehyde (MDA) and plasma reduced glutathione levels increased significantly during placebo ingestion ($0.2\;{\pm}\;0.03\;{\mu}M/mg$ and $0.26\;{\pm}\;0.29\;{\mu}M$, respectively) but were lower with ribose supplementation ($0.04\;{\pm}\;0.03\;{\mu}M/mg$ and $0.38\;{\pm}\;0.29\;{\mu}M$, respectively; P < .05). Uric acid levels were similar between groups (ribose vs. placebo, $4.55\;{\pm}\;0.06\;mg/dL$ vs. $4.67\;{\pm}\;0.06\;mg/dL$). Ribose demonstrated a beneficial trend in lower MDA and reduced glutathione levels during hypoxic stress.

Review of vacuum pump designations using different standards/test methodologies

Andrew CHEW,Richard HORLER,Pete JONES,Peter LAMB,John WOOD 한국진공학회 2016 한국진공학회 학술발표회초록집 Vol.2016 No.8

Review : Biomechanics of Esophageal Function in Eosinophilic Esophagitis

( Andrew J Read ),( John E Pandolfino ) 대한소화기기능성질환·운동학회(구 대한소화관운동학회) 2012 Journal of Neurogastroenterology and Motility (JNM Vol.18 No.4

Eosinophilic Esophagitis (EoE) is a chronic inflammatory disease of the esophagus triggered by an immune response that leads to symptoms of dysphagia, chest pain, and food impaction. EoE is a clinicopathologic syndrome that requires clinical symptoms and pathologic findings for a diagnosis. The inflammatory process and eosinophilic infiltration of the esophagus in EoE lead to fibrosis and structural changes within the esophagus that cause esophageal dysfunction. The biomechanics of the esophageal function in EoE have been explored using manometry, impedance planimetry, barium esophagograms, and endoscopic ultrasound. These studies have identified several biomechanical changes to the esophagus in EoE including pan-esophageal pressurization on manometry, changes in esophageal compliance with decreased distentisbility by impedance planimetry, decreased esophageal luminal diameter by esophagograms, and dysfunction in the esophageal longitudinal muscles by endoscopic ultrasound. Treatments for the disease involve dietary changes, immunosuppressive drugs, and dilation techniques. However, the data regarding the effect of these therapies on altering mechanical properties of the esophagus is limited. As the pathogenesis of esophageal dysfunction in EoE appears multifactorial, further study of the biomechanics of EoE is critical to better diagnose, monitor and treat the disease. (J Neurogastroenterol Motil 2012,18:357-364)

Associations Between Body Fat Percentage and Fitness among Police Officers: A Statewide Study

John M. Violanti,Claudia C. Ma,Desta Fekedulegn,Michael E. Andrew,Ja K. Gu,Tara A. Hartley,Luenda E Charles,Cecil M. Burchfiel 한국산업안전보건공단 산업안전보건연구원 2017 Safety and health at work Vol.8 No.1

Background: Police work is generally sedentary although there may be situations that require physical endurance and strength, such as foot chases and arresting suspects. Factors such as excessive body fat can impede an officer’s physical ability to deal with such occurrences. Our objective was to examine associations between officers’ body fat percentage (BF%) and performance on a standardized fitness protocol. Methods: Data were obtained from fitness screening among 1,826 male and 115 female officers in a large US police agency. The screening consisted of a 2.4-km run, push-ups, sit-ups, and sit-and-reach test. Sexspecific body fat percentages were estimated from skinfold thickness measured using calipers. Linear regression models were used to examine unadjusted and adjusted mean scores of fitness tests across BF% tertiles. Results: The prevalence of overall fitness was 4.3 times greater in male officers and 3.6 times greater in female officers having the lowest BF% tertile compared with the highest tertile (30.3% vs 7.1% and 46.0% vs 12.8%, respectively). BF% was linearly and positively associated with the time of 2.4-km run (p < 0.001), and linearly and inversely associated with the number of push-ups (p < 0.001), sit-ups (p < 0.001), and the distance of sit-and-reach (p < 0.001) in men. Similar associations were observed in women with the exception of sit-and-reach (p ¼ 0.122). Associations were independent of age, race/ ethnicity, rank, and duty station. Conclusion: Overall, BF% was inversely associated with fitness levels in male and female officers. Future longitudinal studies should be initiated to explore the potentially causal relationship between BF% and fitness in law enforcement officers.