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Rosenblum, Andrew, Charles M. Cleland, Chunki Fong, Deborah J. Kayman, Barbara Tempalski e Mark Parrino. "Distance Traveled and Cross-State Commuting to Opioid Treatment Programs in the United States". Journal of Environmental and Public Health 2011 (2011): 1–10. http://dx.doi.org/10.1155/2011/948789.
Abstract (sommario):
This study examined commuting patterns among 23,141 methadone patients enrolling in 84 opioid treatment programs (OTPs) in the United States. Patients completed an anonymous one-page survey. A linear mixed model analysis was used to predict distance traveled to the OTP. More than half (60%) the patients traveled <10 miles and 6% travelled between 50 and 200 miles to attend an OTP; 8% travelled across a state border to attend an OTP. In the multivariate model (n=17,792), factors significantly (P<.05) associated with distance were, residing in the Southeast or Midwest, low urbanicity, area of the patient's ZIP code, younger age, non-Hispanic white race/ethnicity, prescription opioid abuse, and no heroin use. A significant number of OTP patients travel considerable distances to access treatment. To reduce obstacles to OTP access, policy makers and treatment providers should be alert to patients' commuting patterns and to factors associated with them.
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Sonawane, Shreeyash, Pallavi Patil, Ramkrishna Bharsakade e Pankaj Gaigole. "Optimizing Tool Path Sequence Of Plasma Cutting Machine Using TSP Approach". E3S Web of Conferences 184 (2020): 01037. http://dx.doi.org/10.1051/e3sconf/202018401037.
Abstract (sommario):
The paper consists of optimizing the total distance traveled by the Plasma Cutting Tool Head. It is cross-functional implementation traveling salesman problem to the core manufacturing process of plasma cutting. This study contributes to reduce the total rapid traverse length (Total Through-Air Travelled Distance) by the cutting tool (Plasma Beam), which is totally a non-productive as well as non-value adding process contributing to the machine running costs and cycle time of the product directly and indirectly. For deriving this optimal sequence for the plasma cutting head, a heuristic algorithm is used. This algorithm calculates an optimal solution for a problem creating the best possible sequence. The greedy algorithm follows the problem-solving heuristics of making a locally optimal choice at every stage, finally integrating a globally optimal solution. Hence after deducing this optimal sequence and when accompanied by the Plasma Cutting tool, it resulted in the least distance traveled, contributing to minimizing cost and energy savings of the machine and simultaneously reducing the total traveled distance and similarly the cycle time.
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Camargo, Roberto Da Silva. "Foraging behavior of leaf cutting ants: How do workers search for their food?" Sociobiology 62, n. 3 (30 settembre 2015): 347. http://dx.doi.org/10.13102/sociobiology.v62i3.714.
Abstract (sommario):
? Forager ants search for adequate food sources in nature and, after their discovery, decide whether the source is suitable or not for the colony. However, we asked “How do workers seek out the substrate for cultivation of the symbiontic fungus on which they feed? To answer this question, we evaluated the distance traveled by individual workers in the search of food and the distance traveled to return to the nest, as well as the time and velocity necessary for these activities. The results showed that the distance traveled by the leaf cutting ant, Atta sexdens rubropilosa (Linneus, 1758), in the search of food was greater than the distance traveled to return with the substrate to the colony. On the other hand, the mean time and velocity were similar for food search and return to the colony. These results support the hypothesis of information transfer, according to which the worker needs to return to the nest at the beginning of foraging to transfer information to other workers and thus to establish the process of worker ant foraging. It can be concluded that workers travel large distances in a random manner until finding their substrate, but the return to the nest is efficient considering the shorter distance traveled.
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Bajwa, Mohammad Hamza, Mashal Shah, Erum Baig, Izza Tahir, Kinzah Ghazi, Rameen Bajwa, Altaf Ali Laghari et al. "EPID-25. DISTANCE TRAVELED FOR BRAIN TUMOR CARE IN PAKISTAN: AN LMIC PERSPECTIVE". Neuro-Oncology 23, Supplement_6 (2 novembre 2021): vi91. http://dx.doi.org/10.1093/neuonc/noab196.358.
Abstract (sommario):
Abstract INTRODUCTION Global oncology development within LMICs (low- and middle-income countries) requires bridging gaps in healthcare systems. Brain tumor care in Pakistan is currently sparse and concentrated in urban centers. Distance traveled to a hospital dictates a patient’s access to care, neurosurgical access, and continuity of care through adjuvant chemoradiotherapy and primary care providers can be disrupted if patients cannot overcome the barriers due to extensive distances traveled. METHODS Data was collected as part of the Pakistan Brain Tumor Epidemiology Study (PBTES) regarding patients with brain tumors who underwent surgical procedures in 2019 at private and public major neurosurgical centers across Pakistan. Using patient addresses, we used a mapping software to calculate the distance traveled by each patient to the primary hospital. Analysis was done using appropriate statistical methods. RESULTS Out of 2403 patients, the mean distance traveled across the country was 240 km. The longest distance traveled within Pakistan was from Skardu to Karachi (2002 km) for resection of a pituitary adenoma (28 hours via car). Only 48% of patients were able to reach their primary hospital within 50 km. 52% of patients had to travel more than 50 km, and 18% had to travel upwards of 500 km to reach their primary hospital. Additionally, 101 patients traveled to Pakistan from other countries for brain tumor surgery (98 patients from Afghanistan [mean distance traveled: 723.6 km], 3 patients from Syria, Oman, and Sudan). CONCLUSION Prior studies have described a cut-off of 50 km as an acceptable limit for distance from the primary hospital in cancer patients for optimal follow-up and outcomes, which is achieved by only 48% of brain tumor patients in Pakistan. Most patients have poor access to surgical care for brain tumors, further compounded by repeat traveling for follow-ups and chemoradiotherapy.
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Morvant, Brett A., Elizabeth C. Heintz e Jeremy J. Foreman. "Effects of Age and Travel on National Football League Quarterback Performance: A Correlational Study". International Journal of Kinesiology and Sports Science 9, n. 1 (29 gennaio 2021): 45. http://dx.doi.org/10.7575/aiac.ijkss.v.9n.1p.45.
Abstract (sommario):
Background: Long-distance travel is common for professional athletes; thus, the impact of jet-lag on athletic performance is a relevant topic. Additionally, older individuals take longer to recover from exercise and post-travel fatigue; therefore, it is likely that age and travel affect performance. Objective: The purpose of this study is to investigate the effects of age and travel on NFL quarterback performance. Method: A correlational research design is used to examine the effects of age and travel on NFL quarterback performance. Data were collected from pro-football-reference.com. Quarterback ratings from the 2018 NFL season are analyzed with age, distance traveled, season week, and weeks since the team’s bye week. The interaction of age and distance is also included to examine the impact of the age-distance relationship on performance. Regression analysis is used to predict quarterback ratings. Results: Season week (p = 0.04), weeks since a bye week (p = 0.041), and distance traveled (p = 0.031) have negative effects on quarterback ratings. The age-performance relationship in NFL quarterbacks is non-linear (p = 0.018), with quarterback performance decreasing during an athlete’s 20s and then increasing during an athlete’s 30s. Additionally, ratings of younger quarterbacks decrease with farther distances traveled, while the ratings of older quarterbacks increase with farther distances traveled (p = 0.072). Conclusions: Differences in performance by age with travel may be the result of different severities of jet-lag symptoms experienced by younger and older quarterbacks, as well differences in strategies for managing post-travel fatigue by athletes of different ages.
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Guimarães, Pompeu Paes, Julio Eduardo Arce, Eduardo Da Silva Lopes, Nilton Cesar Fiedler, Renato César Gonçalves Robert e Fernando Seixas. "ANALYSIS OF FUEL CONSUMPTION SENSITIVITY IN FORESTRY ROAD TRANSPORT". FLORESTA 49, n. 2 (29 marzo 2019): 155. http://dx.doi.org/10.5380/rf.v49i2.49137.
Abstract (sommario):
The objective of this work was to analyze how the variation of traveled distance, operational speed, journey time and net cargo transported influence the fuel consumption of vehicles in forest road transport. The data were collected in this operation, covering the area between the regions of Campo do Tenente (forest unit) and Piên (industrial unit), in the state of Paraná. We analyzed the partial elements, loaded trip and empty trip, as well as the total transport cycle (loading, unloading and travel). Using the same mechanical tractor, two vehicular compositions were studied, an articulated vehicle (truck tractor + semitrailer + trailer) and a conjugated vehicle (truck tractor + semitrailer). The vehicle telemetric system was used to perform the data collection of travel time, traveled distance, speed average and fuel consumption of the both vehicles. The results showed that the higher fuel consumption occurred in the loaded trips for longer distances. The sensitivity of fuel consumption was mostly influenced by was traveled distance, so it is recommended the use of vehicles of less load capacity for shorter distances.
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Reksowardojo, Iman K., Hari Setiapraja, Rizqon Fajar, Edi Wibowo e Dadan Kusdiana. "An Investigation of Laboratory and Road Test of Common Rail Injection Vehicles Fueled with B20 Biodiesel". Energies 13, n. 22 (22 novembre 2020): 6118. http://dx.doi.org/10.3390/en13226118.
Abstract (sommario):
In this study, biodiesel fuel with a ratio of 20% volume (B20) was used on vehicles that are used in common rail injection systems, complying with Euro2 emission regulations. Laboratory and road tests were conducted to evaluate the effects of B20 on performance, emissions and engine components. Using diesel fuel and B20 as reference fuels, tests were conducted using Euro2 vehicle technology to investigate the effects on emissions, fuel consumption, and power. Durability testing was run for travel distances covering 40,000 km under various road and environmental conditions, while vehicle performance and emissions tests were conducted using the ECE R84-03 and ECE R101 test methods, respectively. The results show that B20 has lower CO and hydrocarbon (HC) emissions for every distance travelled, with an average of around 30%. Particulate emission was a bit lower, averaging 3.4% for B20 compared to B0, while NOx was found to slightly increase at around 2% for B20. Due to its lower calorific value, for an average distance traveled, the fuel economy of B20 was around 0.5% higher compared to B0. Furthermore, the maximum power of B20 was 3% lower compared to that of B0 for the entire distance traveled. However, an evaluation of engine components after 40,000 km showed that B20 and B0 were similar. Moreover, vehicles using B20 tend to have a comparable durability of engine components when compared with B0.
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Tolnay, Stewart E., Katherine J. Curtis White, Kyle D. Crowder e Robert M. Adelman. "Distances Traveled during the Great Migration". Social Science History 29, n. 4 (2005): 523–48. http://dx.doi.org/10.1017/s0145553200013298.
Abstract (sommario):
Between 1910 and 1970, millions of southern-born Americans migrated to the northern and western regions of the country in search of better opportunities. Some traveled only short distances, leaving Appalachia for nearby destinations in the southern Midwest. Others made the much longer trek to the West Coast. In this article, we use data from the 1920, 1940, and 1970 Public Use Microdata Samples to investigate the distances traveled by male participants in the Great Migration, with a special focus on differences by race, as well as on changes over time. We find that the average distance traveled increased substantially during the Great Migration for blacks and whites alike. However, throughout this time period, white migrants moved significantly farther than black migrants. The greater propensity for white migrants to move west, rather than north, accounts for a good deal of this overall racial variation. Although the difference in distance traveled between blacks and whites narrowed significantly over time, it remained substantial as the Great Migration came to a close. We conclude by highlighting the impact of these differential migration patterns on the composition and social conditions in northern cities.
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rousset, thomas, christophre bourdin e jean-louis vercher. "Distinguish egocentric distance perception from traveled distance perception." Journal of Vision 18, n. 10 (1 settembre 2018): 502. http://dx.doi.org/10.1167/18.10.502.
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Durbin, Sienna, Debra Lundquist, Megan Healy, Kaitlyn Lynch, Viola Bame, Tristan Martin, Andrew Johnson et al. "Relationship of travel distance with patient demographics, advance care planning, and survival in early-phase clinical trials (EP-CTs)." Journal of Clinical Oncology 40, n. 16_suppl (1 giugno 2022): 6558. http://dx.doi.org/10.1200/jco.2022.40.16_suppl.6558.
Abstract (sommario):
6558 Background: EP-CTs are often conducted at large academic centers, which may require some patients to travel further for their care. Little is known about either the distance EP-CT participants travel for their care or the association of distance traveled with patient characteristics and outcomes. Methods: We retrospectively reviewed the electronic health records of consecutive patients enrolled in EP-CTs at Massachusetts General Hospital from 2017-2019 to obtain patient characteristics (demographics and clinical factors) and outcomes (including time spent on trial, survival, and presence or absence of an advance care planning [ACP] discussion, defined as documentation of a code status or goals of care conversation in the medical record). We also used patients’ home zip codes to derive the social deprivation index (SDI; a composite demographic measurement from 0-100 quantifying social determinants of health, with higher numbers indicating more disadvantage). To estimate distance traveled, we calculated the miles traveled in one direction driving from home zip code to trial site. We used descriptive statistics to compare patient characteristics and outcomes for those traveling < 50 miles (short distance) versus those traveling 50+ miles (long distance). Results: Among 421 patients (median age = 63.0 years, 56.9% female, 97.6% metastatic disease), median distance traveled was 36.4 miles. Half of patients (n = 217; 51.5%) traveled 50+ miles to receive care on trial. There were no significant differences between those traveling short and long distances in most patient characteristics evaluated, including age (60.9 vs 60.6 years; p = 0.635), sex (53.9% female vs 57.6%; p = 0.447), race (85.3% white vs 84.8%; p = 0.346), marital status (71.8% married vs 69.3%; p = 0.586), insurance (51% private vs 54.4%; p = 0.266), cancer type (22.5% GI vs 21.2%; p = 0.666), prior lines of therapy (52.5% one-two lines vs 51.2%; p = 0.981), and performance status (62.3% ECOG 1 vs 66.8%; p = 0.270. However, those with a higher SDI score were less likely to travel a long distance for trial participation (mean SDI 36.7 for short distance vs 30.5 for long distance; p = 0.026). Patients traveling a long distance were less likely to have a documented ACP discussion (48.8% vs 66.7%; p < 0.001). We found no significant difference in time spent on trial between those traveling short and long distances (mean days: 98 vs 93.5; p = 0.175) or in time from coming off trial to death (mean days: 147.7 vs 153.7; p = 0.099). Conclusions: We found that half of EP-CT participants travel 50+ miles in one direction to their trial site, with disparities in travel distance based on the social deprivation index. Notably, those traveling long distances were less likely to have a documented ACP discussion. Our findings suggest several unmet needs in the EP-CT population and highlight opportunities for future intervention development.
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Dias, Fernanda Dultra, Evelim Leal de Freitas Dantas Gomes, Roberto Stirbulov, Vera Lúcia Santos Alves e Dirceu Costa. "Assessment of body composition, functional capacity and pulmonary function in patients with Chronic Obstructive Pulmonary Disease". Fisioterapia e Pesquisa 21, n. 1 (marzo 2014): 10–15. http://dx.doi.org/10.1590/1809-2950/238210114.
Abstract (sommario):
Chronic obstructive pulmonary disease (COPD) is related to a low body mass index (BMI), reduced functional capacity and reduced bone density, thus justifying the importance of evaluating all of these parameters in the patients with the disease. This is a cross-sectional study, with sample consisting of 20 patients who performed measurement of body composition by bioelectrical impedance, evaluation of functional capacity by the distance traveled in the Incremental Shuttle Walk Test (ISWT) and assessment of severity of obstruction by spirometry. Significant differences were found between the travelled and scheduled distance in the ISWT (p<0.01), positive correlations between muscle mass and distance walked in ISWT (r=0.54 with p=0.01), with FEV1 (r=0.488 with p=0.02), FEV1 and bone mass (r=0.497 with p=0.02) and distance traveled with FEV1 (r=0,541 with p=0.01). The correlations found in this study, besides confirming the hypothesis that the severity of the obstruction presented by the change in the lung parenchyma in patients with COPD is related to changes in body composition and functional capacity reduction, also highlight the correlation with bone mass.
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Takemiya, Takako, e Chisen Takeuchi. "Traveled Distance Is a Sensitive and Accurate Marker of Motor Dysfunction in a Mouse Model of Multiple Sclerosis". ISRN Neuroscience 2013 (10 dicembre 2013): 1–4. http://dx.doi.org/10.1155/2013/170316.
Abstract (sommario):
Multiple sclerosis (MS) is a common central nervous system disease associated with progressive physical impairment. To study the mechanisms of the disease, we used experimental autoimmune encephalomyelitis (EAE), an animal model of MS. EAE is induced by myelin oligodendrocyte glycoprotein35–55 peptide, and the severity of paralysis in the disease is generally measured using the EAE score. Here, we compared EAE scores and traveled distance using the open-field test for an assessment of EAE progression. EAE scores were obtained with a 6-step observational scoring system for paralysis, and the traveled distance was obtained by automatic trajectory analysis of natural exploratory behaviors detected by a computer. The traveled distance of the EAE mice started to decrease significantly at day 7 of the EAE process, when the EAE score still did not reflect a change. Moreover, in the relationship between the traveled distance and paralysis as measured by the EAE score after day 14, there was a high coefficient of determination between the distance and the score. The results suggest that traveled distance is a sensitive marker of motor dysfunction in the early phases of EAE progression and that it reflects the degree of motor dysfunction after the onset of paralysis in EAE.
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Leibrock, Christina, Michael Hierlmeier, Undine E. Lang e Florian Lang. "Subtle Impact of Akt1 and Akt3 on Exploratory Behavior in Gene Targeted Mice". Zeitschrift für Psychologie 223, n. 3 (luglio 2015): 173–80. http://dx.doi.org/10.1027/2151-2604/a000218.
Abstract (sommario):
Abstract. The present study explored the impact of Akt1 and Akt3 on behavior. Akt1 (akt1-/-) and Akt3 (akt3-/-) knockout mice were compared to wild type (wt) mice. The akt1-/- mice, akt3-/- mice, and wt mice were similar in most parameters of the open-field test. However, the distance traveled in the center area was slightly but significantly less in akt3-/- mice than in wt mice. In the light/dark transition test akt1-/- mice had significantly lower values than wt mice and akt3-/- mice for distance traveled, number of rearings, rearing time in the light area, as well as time spent and distance traveled in the entrance area. They were significantly different from akt3-/- mice in the distance traveled, visits, number of rearings, rearing time in the light area, as well as time spent, distance traveled, number of rearings, and rearing time in the entrance area. In the O-maze the time spent, and the visits to open arms, as well as the number of protected and unprotected headdips were significantly less in akt1-/- mice than in wt mice, whereas the time spent in closed arms was significantly more in akt1-/- mice than in wt mice. Protected and unprotected headdips were significantly less in akt3-/- mice than in wt mice. In closed area, akt3-/- mice traveled a significantly larger distance at larger average speed than akt1-/- mice. No differences were observed between akt1-/- mice, akt3-/- mice and wt-type mice in the time of floating during the forced swimming test. In conclusion, akt1-/- mice and less so akt3-/ mice display subtle changes in behavior.
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Larson, Kelsey E., Stephanie A. Valente, Chirag Shah, Rahul D. Tendulkar, Sheen Cherian, Courtney Yanda, Chao Tu, Jessica Echle e Stephen R. Grobmyer. "Are Patients Traveling for Intraoperative Radiation Therapy?" International Journal of Breast Cancer 2017 (2017): 1–4. http://dx.doi.org/10.1155/2017/6395712.
Abstract (sommario):
Purpose. One benefit of intraoperative radiation therapy (IORT) is that it usually requires a single treatment, thus potentially eliminating distance as a barrier to receipt of whole breast irradiation. The aim of this study was to evaluate the distance traveled by IORT patients at our institution. Methods. Our institutional prospective registry was used to identify IORT patients from 10/2011 to 2/2017. Patient’s home zip code was compared to institution zip code to determine travel distance. Characteristics of local (<50 miles), regional (50–100 miles), and faraway (>100 miles) patients were compared. Results. 150 were patients included with a median travel distance of 27 miles and mean travel distance of 121 miles. Most were local (68.7%), with the second largest group living faraway (20.0%). Subset analysis of local patients demonstrated 20.4% traveled <10 miles, 34.0% traveled 10–20 miles, and 45.6% traveled 20–50 miles. Six patients traveled >1000 miles. The local, regional, and faraway patients did not differ with respect to age, race, tumor characteristics, or whole breast irradiation. Conclusions. Breast cancer patients are traveling for IORT, with 63% traveling >20 miles for care. IORT is an excellent strategy to promote breast conservation in selected patients, particularly those who live remote from a radiation facility.
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Silva, Valdete Aparecida Ribeiro da, Izildinha Maestá, Roberto Antonio de Araújo Costa, Aline de Ávila Campos, Antonio Braga, Neil Horowitz, Kevin M. Elias e Ross Berkowitz. "Geographical Health District and Distance Traveled Influence on Clinical Status at Admission of Patients with Gestational Trophoblastic Disease". Revista Brasileira de Ginecologia e Obstetrícia / RBGO Gynecology and Obstetrics 45, n. 07 (luglio 2023): e384-e392. http://dx.doi.org/10.1055/s-0043-1772179.
Abstract (sommario):
Abstract Objective To assess the potential relationship of clinical status upon admission and distance traveled from geographical health district in women with gestational trophoblastic disease (GTD). Methods This is a cross-sectional study including women with GTD from the 17 health districts from the São Paulo state (I–XVII), Brazil, referred to the Botucatu Trophoblastic Disease Center (specialized center, district VI), between 1990 and 2018. At admission, hydatidiform mole was assessed according to the risk score system of Berkowitz et al. Gestational trophoblastic neoplasia was evaluated using the International Federation of Gynecology and Obstetrics / World Health Organization (FIGO/WHO) staging/risk score. Data on demographics, clinical status and distance traveled were collected. Multiple regression analyses were performed. Results This study included 366 women (335 hydatidiform mole, 31 gestational trophoblastic neoplasia). The clinical status at admission and distance traveled significantly differed between the specialized center district and other districts. Patients referred from health districts IX (β = 2.38 [0.87–3.88], p = 0.002) and XVI (β = 0.78 [0.02–1.55], p = 0.045) had higher hydatidiform mole scores than those from the specialized center district. Gestational trophoblastic neoplasia patients from district XVI showed a 3.32 increase in FIGO risk scores compared with those from the specialized center area (β = 3.32, 95% CI = 0.78–5.87, p = 0.010). Distance traveled by patients from districts IX (200km) and XVI (203.5km) was significantly longer than that traveled by patients from the specialized center district (76km). Conclusion Patients from health districts outside the specialized center area had higher risk scores for both hydatidiform mole and gestational trophoblastic neoplasia at admission. Long distances (>80 km) seemed to adversely influence gestational trophoblastic disease clinical status at admission, indicating barriers to accessing specialized centers.
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DiTommaso, Antonio, Courtney A. Stokes, Stéphane Cordeau, Lindsey R. Milbrath e Thomas H. Whitlow. "Seed-Dispersal Ability of the Invasive Perennial Vines Vincetoxicum nigrum and Vincetoxicum rossicum". Invasive Plant Science and Management 11, n. 1 (marzo 2018): 10–19. http://dx.doi.org/10.1017/inp.2018.8.
Abstract (sommario):
AbstractBlack swallowwort [Vincetoxicum nigrum (L.) Moench] and pale swallowwort [Vincetoxicum rossicum (Kleopow) Barb.] are perennial vines of European origin that invade natural areas and perennial cropping systems in the northeastern United States and southeastern Canada. Both species reproduce via wind-dispersed seeds in the form of achenes with comas, but little is known about the extent of dispersal of these seeds. We studied the relationship of seed release height (0.75 m, 2 m), wind speed at the time of release, seed mass, and settling rate on distance traveled. Vincetoxicum nigrum and V. rossicum seeds traveled up to 72.1 and 79.6 m, respectively. Seeds of both species released from 2 m traveled greater distances than seeds released from 0.75 m, which fell within 20 m of the release point. Release height was the most important factor influencing long-distance dispersal events. Wind speed also strongly interacted with release height for long-distance dispersal of V. nigrum. Vincetoxicum nigrum seed mass was greater and settling rates faster than for V. rossicum. Increasing seed mass generally increased settling rate, which in turn decreased distance traveled, except in V. rossicum, for which longer distance–dispersing seeds had a faster settling rate. Our findings suggest that management efforts focus on reducing the presence of these two vines, especially if there is potential for them to climb up taller vegetation such as trees. Seeds released from these greater heights are more likely to travel far from source populations and initiate new populations. Preventing seed production in small, nonclimbing patches will also help suppress the expansion of these two vines, as seeds can still disperse up to 20 m away from parent plants.
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Hidayat, Alif Rivan, e Basyirun Basyirun. "Pengaruh Jenis Oli Bekas Sebagai Bahan Bakar Kompor Pengecoran Logam Terhadap Waktu Konsumsi dan Suhu Maksimal pada Pembakaran". Jurnal Dinamika Vokasional Teknik Mesin 5, n. 2 (30 settembre 2020): 103–8. http://dx.doi.org/10.21831/dinamika.v5i2.34802.
Abstract (sommario):
This study aims to determine the influence of distance traveled of used oil on fuel consumption rate and its maximum combustion temperature. In terms of consumption rate, used oil combustion tends to be slow because it must reach a certain point in order to burn. The maximum combustion temperature of used oil is comparable to other ordinary fuels, and it is suitable for use in metal casting. The study concluded that the longer the distance traveled, the faster the fuel consumption rate required. Used oil of 2200 km distance traveled is the fastest to burn, 0.8 liters in 745 seconds. The slowest to burn is the one with a distance traveled of 1800 km, which burns in 1031 seconds. The farther the distance traveled yields in a lower combustion temperature reached. At a distance traveled of 1800 km, the maximum temperature is 963.3 °C, while at 2200 km, the maximum temperature is 797.5 °C.Penelitian ini bertujuan untuk mengetahui seberapa besar pengaruh jenis oli bekas terhadap waktu konsumsi bahan bakar dan suhu maksimal pada pembakaran oli bekas. Ditinjau dari segi kecepatan konsumsi bahan bakar, pembakaran oli bekas konsumsinya cenderung lambat karena oli bekas harus mencapai titik tertentu agar dapat terbakar. Ditinjau dari suhu maksimal yang dihasilkan mampu bersaing dengan kompor – kompor dengan bahan lainya dan juga untuk ukuran kompor pengecoran logam sudah memadahi. Pada penelitian tersebut, dapat disimpulkan bahwa semakin jauh jarak tempuh maka semakin cepat/ rendah waktu konsumsi bahan bakar yang diperlukan. Jarak 2200 km merupakan waktu tercepat untuk menghabiskan 0,8 liter oli bekas dengan waktu 745 detik. Sementara waktu terlama yaitu 1031 detik pada jarak 1800 km. semakin jauh jarak tempuh maka suhu maksimal yang dihasilkan semakin rendah. Pada jarak 1800 km menghasilkan suhu maksimal mencapai 963,3 OC, sementara jarak 2200 km hanya mampu menhasilkan suhu maksimal sebesar 797,5 OC.
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Periyakoil, Divya, Hari Prasanna Das, Clayton Miller, Costas J. Spanos e Ndola Prata. "Environmental Exposures in Singapore Schools: An Ecological Study". International Journal of Environmental Research and Public Health 18, n. 4 (14 febbraio 2021): 1843. http://dx.doi.org/10.3390/ijerph18041843.
Abstract (sommario):
Global climate change is a clear and present danger to our environment, but the impacts of climate change on human health are less known. People in Asian countries are more susceptible to the negative impacts of climate change and the subsequent environmental exposures because of the high population density, rapid urbanization, and natural geography of the region. The objective of this multidisciplinary collaborative ecological study was to explore the impact of environmental exposures such as temperature (°C), noise (db), humidity (%rh), air conditioning exposure time (hours), and distance traveled to school (km) on the comfort and academic success of school children in Singapore. Analysis of a large dataset from the Singapore National Science Experiment revealed a positive correlation between the distance traveled to school and favorable environmental conditions (moderate temperatures, low noise, low humidity, and higher amount of air conditioning time) and student academic performance. The analysis revealed that the distance traveled between home and school for public school students falls within a larger range than that for independent (private) school students. On average, students traveled farther distances to attend schools of higher academic caliber thereby increasing their exposure to environmental pollution. Student exposure to pollution can be minimized if all schools adhere to higher standards of environmental comfort and standardized academic caliber. If students can attend the school closest to their homes, they can minimize their daily pollution exposure due to traffic/commute, thereby mitigating the resultant negative health consequences.
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Caolo, Kristin C., Scott J. Ellis, Jonathan T. Deland e Constantine A. Demetracopoulos. "Effect of Travel Time and Distance on Outcomes in Total Ankle Arthroplasty". Foot & Ankle Orthopaedics 5, n. 4 (1 ottobre 2020): 2473011420S0015. http://dx.doi.org/10.1177/2473011420s00154.
Abstract (sommario):
Category: Ankle; Ankle Arthritis Introduction/Purpose: Surgeons who perform a higher volume of total ankle arthroplasty (TAA) are known to have decreased complication rates; evidence shows that low volume centers performing TAA have decreased survivorship when compared with high volume centers. Understanding differences in outcomes for patients traveling different distances for their TAA is important for future patients deciding where to travel for their surgery. No study has previously examined differences in outcomes of patients traveling different distances to a high volume center for their TAA. This study compares preoperative and postoperative PROMIS scores for patients undergoing total ankle arthroplasty who traveled less than and more than 50 miles for their TAA. We hypothesized that there would be no difference in outcome scores based on distance traveled or estimated drive time. Methods: This study is a single center retrospective review of 162 patients undergoing primary total ankle arthroplasty between January 2016 and December 2018. We collected the primary address as listed in the patient’s medical record and used the directions feature on Google Maps to estimate driving mileage and estimated driving time from the patient’s address to the hospital. To analyze the distance patients traveled, patients were divided into two groups: <50 miles traveled (n=91) and >50 miles traveled (n=71). To analyze the estimated drive time, patients were divided into two groups: <90 minutes (n=77), >90 minutes (n=85). We collected preoperative and most recent postoperative PROMIS scores for all patients. Differences in most recent post-operative PROMIS scores between distance groups and travel time groups were assessed using multivariable linear regression models, adjusting for the pre-operative score and follow-up time. Results: We found no significant difference in post-operative PROMIS scores between the two groups when analyzed for distance traveled or for estimated travel time after adjustment for pre-operative PROMIS score and follow-up time (Table 1). The average follow-up for all 162 patients was 1.49 years. Power analysis showed that with a sample size of 110 (55 in each group), we had 81% power to detect an effect size of 4. Patients saw an increase in their Physical Function scores and a decrease in their Pain Interference and Pain Intensity scores with postoperative scores better than population means (Table 1). Overall complication rate for the <50 miles group was 17.6%, 7.7% required surgery. The >50 miles group had an overall complication rate of 24.0%, 9.9% required surgery. Conclusion: Patients traveling further distances to a high volume orthopedic specialty hospital for their total ankle arthroplasty do not have different clinical outcomes than patients traveling shorter distances. This is particularly important for patients deciding where to have their total ankle arthroplasty surgery. Patients who travel further have the opportunity to be treated at a local academic center; however our results show that outcomes do not change when traveling further for total ankle arthroplasty. [Table: see text]
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Graves, Sherri, Jesús Maldonado e Jerry O. Wolff. "Use of ground and arboreal microhabitats by Peromyscus leucopus and Peromyscus maniculatus". Canadian Journal of Zoology 66, n. 1 (1 gennaio 1988): 277–78. http://dx.doi.org/10.1139/z88-040.
Abstract (sommario):
The fluorescent powder tracking technique was used to measure the distance traveled on the ground, on logs, and in trees by Peromyscus leucopus and Peromyscus maniculatus to determine if differential use of ground and arboreal microhabitats was sufficient to reduce niche overlap. Peromyscus maniculatus was more active in large trees than P. leucopus, but the two species traveled comparable distances on the ground, on logs, and in small trees. Vertical microhabitat segregation between these species was minimal and not significant enough to reduce niche overlap.
21
Truitt, Theodore O., Roger A. Adelman, Dan H. Kelly e J. Paul Willging. "Quantitative Endoscopy: Initial Accuracy Measurements". Annals of Otology, Rhinology & Laryngology 109, n. 2 (febbraio 2000): 128–32. http://dx.doi.org/10.1177/000348940010900203.
Abstract (sommario):
The geometric optics of an endoscope can be used to determine the absolute size of an object in an endoscopic field without knowing the actual distance from the object. This study explores the accuracy of a technique that estimates absolute object size from endoscopic images. Quantitative endoscopy involves calibrating a rigid endoscope to produce size estimates from 2 images taken with a known traveled distance between the images. The heights of 12 samples, ranging in size from 0.78 to 11.80 mm, were estimated with this calibrated endoscope. Backup distances of 5 mm and 10 mm were used for comparison. The mean percent error for all estimated measurements when compared with the actual object sizes was 1.12%. The mean errors for 5-mm and 10-mm backup distances were 0.76% and 1.65%, respectively. The mean errors for objects <2 mm and ≥2 mm were 0.94% and 1.18%, respectively. Quantitative endoscopy estimates endoscopic image size to within 5% of the actual object size. This method remains promising for quantitatively evaluating object size from endoscopic images. It does not require knowledge of the absolute distance of the endoscope from the object, rather, only the distance traveled by the endoscope between images.
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Junior, Mario Norberto Sevilio de Oliveira, Christiano Eduardo Veneroso, Guilherme Passos Ramos, Kelly E. Johnson, Justin P. Guilkey, Alyson Felipe da Costa Sena, Christian Emmanuel Torres Cabido e Jason M. Cholewa. "Distance and Intensity Profiles in Division I Women’s Soccer Matches across a Competitive Season". Sports 9, n. 5 (12 maggio 2021): 63. http://dx.doi.org/10.3390/sports9050063.
Abstract (sommario):
Women’s participation in soccer has increased rapidly. The purpose of this study was to evaluate the physiological demands imposed on women’s NCAA Division I soccer players across a season according to speed, total distance traveled, and numbers of sprints measured via GPS (Polar Team Pro®). Eighteen athletes (19.2 ± 1.1 years, 50.5 ± 6.5 mL/kg/min and 23.4 ± 3.6% fat) participated in this study. The analysis was obtained through 13 official matches. Speed zones were defined as Zone 1 (1.0 to 5.99 km·h−1), Zone 2 (6.0 to 10.99 km·h−1), Zone 3 (11.0 to 15.49 km·h−1), Zone 4 (15.5 to 19.9 km·h−1) and Zone 5 (sprint > 20 km·h−1), with Zones 4–5 considered as high intensity running. Individual differences in playing time and total distance were highly variable due to substitutions. Average distance traveled per game in quartiles was 3.9 km, 5.6 km and 7.4 km in the 25th, 50th, and 75th quartiles, respectively. Relative to playing time, players travelled an average of 113.64 ± 17.12 m/min (range: 93.7 to 143.5 m/min) and ran one sprint every 4.12 ± 2.06 min. When distance was summated and analyzed for the entire team, significant difference between halves was found for speed Zones 2, 3 and 4, with greater values found in the first half. Total distance, high intensity running and sprint distance were significantly less than previously recorded in professional players. These findings suggest that coaches should consider the unique physiological demands and recovery opportunities present in NCAA play when constructing practices and conditioning programs.
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Ghosh, Probir, e Mohammad Manir Mollah. "The The risk of public mobility from hotspots of COVID-19 during travel restriction in Bangladesh". Journal of Infection in Developing Countries 14, n. 07 (31 luglio 2020): 732–36. http://dx.doi.org/10.3855/jidc.13104.
Abstract (sommario):
Bangladesh reported the first three laboratory-confirmed COVID-19 cases on March 8, 2020 in Dhaka and Narayanganj cities. As of April 8, 2020, 218 confirmed cases across the country, they have mostly detected from Dhaka (56.4%) and Narayanganj (21%) cities where the hotspots of an outbreak of COVID-19 disease. There were 6 cases in Dhaka district excluding metropolitan areas and rest of 43 (20%) cases in the 19 other regions. Local government-enforced completely shut down the hotspots areas on April 8 2020. However, peoples from hotspots travelled openly to the other districts.
We aimed to understand the risk of open movement from hotspots. We studied 40 individuals who were infected with SARS-CoV-2 virus later at their destination. We developed a route map and density maps using Geographic Information System (GIS). Among the studied people, the average distance was 140.1 (75.1) kilometers (Km), and the range of distance was from 20.3 to 321.7 kilometers. Among them, 42.5% traveled <100 Km, 40.0% traveled between 100 and 200 Km and 17.5% traveled above 200 Km. Case numbers were increased 13.5 times more on April 20 than the cases as of April 8, 2020.
Our analysis suggests that relaxed travel restriction could play an important role to spread COVID-19 transmission domestically. To reduce further spread of COVID-19, the government should closely monitor the public health intervention to stop the casual movement.
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Zander, Nicole, Jessica Dukart, Neeltje van den Berg e Jobst Augustin. "Identifying Determinants for Traveled Distance and Bypassing in Outpatient Care: A Scoping Review". INQUIRY: The Journal of Health Care Organization, Provision, and Financing 56 (gennaio 2019): 004695801986543. http://dx.doi.org/10.1177/0046958019865434.
Abstract (sommario):
The outpatient sector represents a growing share of health care. This review examines how patients choose their physician for continuous outpatient care and why they are willing to bypass the nearest physician. It was conducted according to the PRISMA extension for scoping reviews (PRISMA-ScR). Three databases (PubMed/Medline, ScienceDirect, and Ovid Medline) were searched, focusing on articles in which distance influenced the choice of physician. In all, 1,308 articles were accessed, and 17 selected for final review. First, we extracted methods for assessing distance traveled and bypassing. Second, we identified determinants that directly influence the traveled distance and transferred all into a conceptual framework. The center of this framework is the individual “willingness-to-go”, which reflects the willingness of patients to accept additional distances. Our findings can support studies on patient mobility and physician choice, which are essential for examining both the distribution and use of medical services, as well as for adequate need related planning.
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Juo, Yen-yi, Alexis Woods, Ryan Ou, Gianna Ramos, Richard Shemin e Peyman Benharash. "Does Travel Distance Affect Readmission Rates after Cardiac Surgery?" American Surgeon 83, n. 10 (ottobre 2017): 1170–73. http://dx.doi.org/10.1177/000313481708301032.
Abstract (sommario):
With emphasis on value-based health care, empiric models are used to estimate expected read-mission rates for individual institutions. The aim of this study was to determine the relationship between distance traveled to seek surgical care and likelihood of readmission in adult patients undergoing cardiac operations at a single medical center. All adults undergoing major cardiac surgeries from 2008 to 2015 were included. Patients were stratified by travel distance into regional and distant travel groups. Multivariable logistic regression models were developed to assess the impact of distance traveled on odds of readmission. Of the 4232 patients analyzed, 29 per cent were in the regional group and 71 per cent in the distant. Baseline characteristics between the two groups were comparable except mean age (62 vs 61 years, P < 0.01) and Caucasian race (59 vs 73%, P < 0.01). Distant travel was associated with a significantly longer hospital length of stay (11.8 vs 10.5 days, P < 0.01) and lower risk of readmission (9.5 vs 13.4%, P < 0.01). Odds of readmission was inversely associated with logarithm of distance traveled (odds ratio 0.75). Travel distance in patients undergoing major cardiac surgeries was inversely associated with odds of readmission.
26
Zareski, David. "Consistency of the Ether Theory with the Time Concept, the Mass Concept and the Special Relativity". Applied Physics Research 12, n. 4 (31 luglio 2020): 1. http://dx.doi.org/10.5539/apr.v12n4p1.
Abstract (sommario):
We demonstrate that it is by considering the existence of an “ether” that one can define the notions of time, velocity and mass, and prove that Einstein’s second principle implies the existence of this ether since the light propagates independently of its emitter velocity. Then, that the particle velocity is a group velocity different from the phase velocity when the particle is massive. One interprets then the Morley-Michelson experiment in the frame of the ether.
Let be L0 a fixed distance between two points immobile in a long vehicle in the ether, and let a photon that, when this vehicle is immobile relatively to the ether, travels the distance L0 in this vehicle. An observer immobile in the immobile vehicle sees that the distance traveled by the photon is also L0 . But, if the vehicle moves, e.g., at the velocity V relatively to the ether, and the photon at the velocity c also relatively to the ether, then an observer immobile in the moving vehicle will find that the distance traveled by this photon is not L0 but is L(V) defined by
L(V)=L(0)1-V/c2 ). We prove then that L(V) is not the new dimension of the vehicle, but is simply the distance travelled by the photon in this vehicle. That is, as demonstrated in our previous publications: the ether volumetric density is constant.
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Jimenez, Jessica A., Eric S. McCoy, David F. Lee e Mark J. Zylka. "The open field assay is influenced by room temperature and by drugs that affect core body temperature". F1000Research 12 (2 marzo 2023): 234. http://dx.doi.org/10.12688/f1000research.130474.1.
Abstract (sommario):
Background: The open field assay is used to study anxiety-related traits and anxiolytic drugs in rodents. This assay entails measuring locomotor activity and time spent in the center of a chamber that is maintained at ambient room temperature. However, the ambient temperature in most laboratories varies daily and seasonally and can differ between buildings. We sought to evaluate how varying ambient temperature and core body temperature (CBT) affected open field locomotor activity and center time of male wild-type (WT, C57BL/6) and Transient Receptor Potential Subfamily M Member 8 (Trpm8) knock-out (Trpm8-/-) mice. TRPM8 is an ion channel that detects cool temperatures and is activated by icilin. Methods: Mice were placed in the open field at 4°C and 23°C for 30 minutes. Distance traveled and time spent in the center were measured. Mice were injected with icilin, M8-B, diazepam, or saline, and changes in activity level were recorded. Results: The cooling agent icilin increased CBT and profoundly reduced distance traveled and center time of WT mice relative to controls. Likewise, cooling the ambient temperature to 4°C reduced distance traveled and center time of WT mice relative to Trpm8-/- mice. Conversely, the TRPM8 antagonist (M8-B) reduced CBT and increased distance traveled and center time of WT mice when tested at 4°C. The TRPM8 antagonist (M8-B) had no effect on CBT or open field behavior of Trpm8-/- mice. The anxiolytic diazepam reduced CBT in WT and Trpm8-/- mice. When tested at 4°C, diazepam increased distance traveled and center time in WT mice but did not alter open field behavior of Trpm8-/- mice. Conclusions: Environmental temperature and drugs that affect CBT can influence locomotor behavior and center time in the open field assay, highlighting temperature (ambient and core) as sources of environmental and physiologic variability in this commonly used behavioral assay.
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Jimenez, Jessica A., Eric S. McCoy, David F. Lee e Mark J. Zylka. "The open field assay is influenced by room temperature and by drugs that affect core body temperature". F1000Research 12 (7 dicembre 2023): 234. http://dx.doi.org/10.12688/f1000research.130474.2.
Abstract (sommario):
Background The open field assay is used to study anxiety-related traits and anxiolytic drugs in rodents. This assay entails measuring locomotor activity and time spent in the center of a chamber that is maintained at ambient room temperature. However, the ambient temperature in most laboratories varies daily and seasonally and can differ between buildings. We sought to evaluate how varying ambient temperature and core body temperature (CBT) affected open field locomotor activity and center time of male wild-type (WT, C57BL/6) and Transient Receptor Potential Subfamily M Member 8 (Trpm8) knock-out (Trpm8-/- ) mice. TRPM8 is an ion channel that detects cool temperatures and is activated by icilin. Methods Mice were placed in the open field at 4°C and 23°C for 30 minutes. Distance traveled and time spent in the center were measured. Mice were injected with icilin, M8-B, diazepam, or saline, and changes in activity level were recorded. Results The cooling agent icilin increased CBT and profoundly reduced distance traveled and center time of WT mice relative to controls. Likewise, cooling the ambient temperature to 4°C reduced distance traveled and center time of WT mice relative to Trpm8-/- mice. Conversely, the TRPM8 antagonist (M8-B) reduced CBT and increased distance traveled and center time of WT mice when tested at 4°C. The TRPM8 antagonist (M8-B) had no effect on CBT or open field behavior of Trpm8-/- mice. The anxiolytic diazepam reduced CBT in WT and Trpm8-/- mice. When tested at 4°C, diazepam increased distance traveled and center time in WT mice but did not alter open field behavior of Trpm8-/- mice. Conclusions Environmental temperature and drugs that affect CBT can influence locomotor behavior and center time in the open field assay, highlighting temperature (ambient and core) as sources of environmental and physiologic variability in this commonly used behavioral assay.
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Jimenez, Jessica A., Eric S. McCoy, David F. Lee e Mark J. Zylka. "The open field assay is influenced by room temperature and by drugs that affect core body temperature". F1000Research 12 (19 febbraio 2024): 234. http://dx.doi.org/10.12688/f1000research.130474.3.
Abstract (sommario):
Background The open field assay is used to study anxiety-related traits and anxiolytic drugs in rodents. This assay entails measuring locomotor activity and time spent in the center of a chamber that is maintained at ambient room temperature. However, the ambient temperature in most laboratories varies daily and seasonally and can differ between buildings. We sought to evaluate how varying ambient temperature and core body temperature (CBT) affected open field locomotor activity and center time of male wild-type (WT, C57BL/6) and Transient Receptor Potential Subfamily M Member 8 (Trpm8) knock-out (Trpm8-/- ) mice. TRPM8 is an ion channel that detects cool temperatures and is activated by icilin. Methods Mice were placed in the open field at 4°C and 23°C for 30 minutes. Distance traveled and time spent in the center were measured. Mice were injected with icilin, M8-B, diazepam, or saline, and changes in activity level were recorded. Results The cooling agent icilin increased CBT and profoundly reduced distance traveled and center time of WT mice relative to controls. Likewise, cooling the ambient temperature to 4°C reduced distance traveled and center time of WT mice relative to Trpm8-/- mice. Conversely, the TRPM8 antagonist (M8-B) reduced CBT and increased distance traveled and center time of WT mice when tested at 4°C. The TRPM8 antagonist (M8-B) had no effect on CBT or open field behavior of Trpm8-/- mice. The anxiolytic diazepam reduced CBT in WT and Trpm8-/- mice. When tested at 4°C, diazepam increased distance traveled and center time in WT mice but did not alter open field behavior of Trpm8-/- mice. Conclusions Environmental temperature and drugs that affect CBT can influence locomotor behavior and center time in the open field assay, highlighting temperature (ambient and core) as sources of environmental and physiologic variability in this commonly used behavioral assay.
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Smith, Ruth B., Ellis C. Greiner e Blair O. Wolf. "Migratory Movements of Sharp-Shinned Hawks (Accipiter Striatus) Captured in New Mexico in Relation to Prevalence, Intensity, and Biogeography of Avian Hematozoa". Auk 121, n. 3 (1 luglio 2004): 837–46. http://dx.doi.org/10.1093/auk/121.3.837.
Abstract (sommario):
Abstract Previous interspecific studies have shown that migratory birds have a higher prevalence of blood parasites than nonmigratory birds. It is thought that birds that move greater distances are exposed to a larger parasite fauna, because of uneven distribution of vectors that carry such parasites. Current hypotheses also suggest that the stress of migration may allow parasites to persist, by weakening the immune system and allowing latent infections to recur. We captured migrating hatching-year Sharp-shinned Hawks (Accipiter striatus) in New Mexico and estimated natal latitudes of each individual by analyzing stable-hydrogen isotope ratios of feathers. That enabled us to estimate distances traveled up to point of capture. We also collected blood to quantify hematozoan infection prevalence and intensity. We related distance traveled to prevalence and intensity of hematozoan infections. Contrary to previous hypotheses, our results show no relationship between distance traveled by migrants and prevalence and intensity of hematozoan infections. Of 75 individuals examined, 24% were infected with Leucocytozoon toddi, 37% with Haemoproteus elani, and 5% with H. janovyi. To our knowledge, this is the first documented occurrence of H. janovyi in North America and in Sharp-shinned Hawks. Our stable-hydrogen isotope analyses indicated that H. janovyi was detected only in birds that originated in southwestern North America, which may be of significance in regard to biogeography of that parasite species.
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Parrish, Emma, Colin Depp, Raeanne C. Moore, Philip D. Harvey, Jason Holden, Joel Swendsen e Eric Granholm. "O1.6. AFFECTIVE DETERMINANTS OF LIFE-SPACE THROUGH GPS AND ECOLOGICAL MOMENTARY ASSESSMENT IN SCHIZOPHRENIA: WHAT GETS PEOPLE OUT OF THE HOUSE?" Schizophrenia Bulletin 46, Supplement_1 (aprile 2020): S3. http://dx.doi.org/10.1093/schbul/sbaa028.005.
Abstract (sommario):
Abstract Background Previous research employing global positioning satellite (GPS) data and ecological momentary assessment (EMA) has shown that greater aggregated time at home and less distance traveled (diminished life-space) were associated with poorer community functioning and with more severe negative symptoms in people with schizophrenia. Emotional experiences (e.g., pleasure or anxious avoidance) may reduce time spent outside of the home. We evaluated the associations between concurrent and time-lagged positive and negative affective experiences in relation to time at home and distance travelled in the community (life-space) among people with schizophrenia compared to healthy comparators (HCs). Methods Sixty HCs (mean age = 51.2, SD = 10.9) and 91 people with schizophrenia (mean age=52, SD=9), matched on demographic characteristics, completed in-lab assessments of symptoms, cognition, and functioning. They were then given a smartphone and completed EMA assessments 7 times daily for 7 days at stratified random intervals. EMA surveys included questions about daily life activities and affect. GPS coordinates were collected every 5 minutes, 24 hours a day, over the 7-day study period. Results Participants with schizophrenia spent more time at home than HCs (t = -4.95, p < 0.001). Sadness and ratings of relaxation were not associated with distance traveled away or time spent at home. For HCs, happiness was associated with more distance traveled away as measured by GPS (B=6.85, SE= 3.04, Wald Chi-Square = 5.067, p=0.024). However, for people with schizophrenia, only greater nervousness ratings were associated with more distance from home (B=3.41, SE=1.30, Wald Chi-Square=6.88, p=0.009). Moreover, for people with schizophrenia, greater nervousness ratings were associated with more time spent at home (B=2.07, SE= 0.98, Wald Chi-Square=4.43, p=0.035), and greater nervousness also predicted that a person with schizophrenia would be at home at the next survey in lead analyses, (F(1, 3029)=7.533, p=0.006). Taken together, these results suggest both greater nervousness associated with greater distance away from home and anxious avoidance of leaving the home. Discussion For individuals with schizophrenia, greater overall anxiety was associated with reduced time spent out of the home, and when patients did leave the home, greater distance travelled was associated with greater nervousness. In contrast, HC participants experienced greater positive emotion with larger life-space. These data suggest a significant momentary temporal association of anxiety and behavior in schizophrenia, such that greater nervousness predicted an individual would be more likely to stay at home. These findings suggest avoidance of negative emotion may also contribute to diminished motivated behavior, which may even act as an emotion regulation strategy. Life-space, which can be measured readily over time by mobile devices, may be a novel target for rehabilitative interventions for anxious avoidance in schizophrenia.
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Triantafyllidis, Stavros, e Harry Davakos. "Growing Cities and Mass Participant Sport Events: Traveling Behaviors and Carbon Dioxide Emissions". C 5, n. 3 (20 agosto 2019): 49. http://dx.doi.org/10.3390/c5030049.
Abstract (sommario):
Fast-growing cities are expected to become a key contributor to the global climate crisis. A key characteristic of those urban districts is the accommodation of mass participant sport events. Sport entities, in collaboration with city governments, plan annually active participation sport events to promote their cities as tourism destinations. Mass participant sport events aim to attract more visitors to the cities and to establish a successful social and economically sustainable future to those places. Given the fact that transportation is a critical factor of the residents and the visitors’ behavior, it is crucial to research the quantity of CO2 emissions generated to those places in association with the travel behaviors of the active sport event participants. Data collected from an annual mass participant running event in a highly ranked growing city in the United States. Findings showed that most of the active sport event participants traveled more than 150 miles to participate in the race and they used their vehicles. The largest quantity of CO2 emissions derived from those participants who traveled a round trip of, on average, 500 miles. The long-distance travelers alone generated 338 million kg of CO2 emissions. The conclusions recommend that growing cities and sport events should target long-distance travelers for promotions concerning sustainable transportation. Consequently, mass participant sport events could play a crucial role in the development of growing cities, and, in turn, growing cities that control long-distance traveling behaviors can reduce the global amount of greenhouse gas emissions and their impact on the global environmental destruction.
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Bhangoo, Sandeep S. "Letter: Neurosurgical Randomized Controlled Trials—Distance Traveled". Neurosurgery 83, n. 3 (21 giugno 2018): E138. http://dx.doi.org/10.1093/neuros/nyy280.
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Gunderson, Camille C., Elizabeth K. Nugent, D. Scott McMeekin e Kathleen N. Moore. "Distance Traveled for Treatment of Cervical Cancer". International Journal of Gynecological Cancer 23, n. 6 (luglio 2013): 1099–103. http://dx.doi.org/10.1097/igc.0b013e3182989464.
35
Terra, Rui, Lino Figueiredo, Ramiro Barbosa e Ricardo Anacleto. "Traveled Distance Estimation Algorithm for Indoor Localization". Procedia Technology 17 (2014): 248–55. http://dx.doi.org/10.1016/j.protcy.2014.10.235.
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Jara-Díaz, Sergio, Antonio Gschwender, Juan Cristóbal Castro e Matías Lepe. "Distance traveled, transit design and optimal pricing". Transportation Research Part A: Policy and Practice 179 (gennaio 2024): 103928. http://dx.doi.org/10.1016/j.tra.2023.103928.
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Yang, Jie, Jing Dong, Qi Zhang, Zhiyuan Liu e Wei Wang. "An Investigation of Battery Electric Vehicle Driving and Charging Behaviors Using Vehicle Usage Data Collected in Shanghai, China". Transportation Research Record: Journal of the Transportation Research Board 2672, n. 24 (11 maggio 2018): 20–30. http://dx.doi.org/10.1177/0361198118759015.
Abstract (sommario):
This paper investigates the driving and charging behaviors of battery electric vehicle (BEV) drivers observed in Shanghai, China. The summary statistics are compared with the observations from the U.S. EV Project. A machine-learning approach, namely self-organizing feature map (SOM), is adopted as a classifier to analyze BEV drivers’ habitual behaviors. The inter-driver heterogeneities are examined in terms of: the distributions of distance traveled per day, the start time of charging, the number of charges per day, distance traveled between consecutive charges, battery state of charge (SOC) before and after charging, and time-of-day electricity demand. It is found that ( a) BEV drivers demonstrate conservative charging behaviors, leading to short distances between consecutive charging events; ( b) a significant number of BEV drivers in Shanghai charge during daytime; ( c) the distributions depicting the driving and charging patterns vary greatly due to the diversity in travel activities among different drivers.
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Shvetsov, Alexey. "Research on ways to improve the environmental situation while optimizing the management of urban parking space". E3S Web of Conferences 515 (2024): 03010. http://dx.doi.org/10.1051/e3sconf/202451503010.
Abstract (sommario):
This paper explores options for improving the environmental situation when optimizing the management of urban parking space. During the work, the distance traveled by drivers when searching for parking in the central part of cities was analyzed. Data on the length of the distance traveled was obtained by interviewing drivers. The survey was conducted after completing a task to find parking in the central part of cities at a certain time of day (08.00-09.00, 12.00-14.00, 17.00-19.00). The data obtained reflect the indicator regarding the distance traveled by drivers when searching for parking in the central part of cities. The data obtained make it possible to estimate the amount of environmental load arising from vehicle traffic in the central part of cities when searching for free parking spaces. These studies can be used in the development of programs for optimizing the management of urban parking space, as well as environmental studies aimed at stabilizing the environmental situation in modern cities.
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dos Santos Cabral, Eric Lucas, Wilkson Ricardo Silva Castro, Claudia Aparecida Cavalheiro Francisco e Ricardo Pires de Souza. "Optimization model for the installation of SAMU bases: application in Natal-RN". Revista Gestão da Produção Operações e Sistemas 15, n. 4 (24 novembre 2020): 205–18. http://dx.doi.org/10.15675/gepros.v15i4.2668.
Abstract (sommario):
Purpose – The objective of this study was the application of a mathematical model aiming to designate neighborhoods for the installation of new Mobile Emergency Care Service (SAMU) bases that minimize the distance traveled by the ambulances in the city of Natal / RN. Design/methodology/approach –The data were grouped in order to obtain parameters, such as: call district, time, day of the week, number of accidents. After data collection and processing, a matrix of neighborhood-to-neighborhood distance in the city of Natal based on Google Maps was created. A model was created to minimize the distance traveled by ambulances with the aid of the AIMMS program. Findings – The application of the model allowed for the simulation of scenarios with the installation of 3 to 8 fixed bases. There was a significant reduction in the distance traveled by the ambulances which reached 48%, after the installation of eight bases. In other words, there was a reduction of 6,560 kilometers traveled per month by ambulances. Research, Practical & Social implications – The reduction in the total distance covered by the ambulances has practical and social implications, since it provides an increase in the number of ambulances available to serve the population and directly reflects in the reduction in the average response time of the service. Originality/value – The article contributes to the debate on efficiency in Brazilian medical emergency services by proposing engineering and management solutions for monitoring critical indicators such as response time. Keywords - Emergency medical service. Health care. Model simulation.
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Sebald, Colleen A., e Christopher D. Wickens. "Subjective Estimates of Velocity, Distance and Time: Implications in Helicopter Navigation". Proceedings of the Human Factors and Ergonomics Society Annual Meeting 37, n. 1 (ottobre 1993): 152–56. http://dx.doi.org/10.1177/154193129303700135.
Abstract (sommario):
This study assessed the sorts of biases induced in a pilot's estimates of velocity, elapsed time, and distance traveled in a flight simulation environment. The validity of an “internal equation” relating the concepts of subjective distance, velocity, and time was assessed. Pilots flew a series of flight legs which varied in their distance, time and velocity, during which they were asked to make judgments of time passage (group 1), speed (group 2), and distance traveled (group 3). These judgments were made under both single and dual task conditions. There was little consistent effect of task loading on any of the subjective estimates, but variations in interval duration, speed, and distance effected the subjective estimates of these quantities in different ways. There was no evidence found for support of an internal equation.
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Foster, Kirk A., Richard J. Smith, Bethany A. Bell e Todd C. Shaw. "Testing the Importance of Geographic Distance for Social Capital Resources". Urban Affairs Review 55, n. 1 (20 giugno 2017): 231–56. http://dx.doi.org/10.1177/1078087417714895.
Abstract (sommario):
This study tests the importance of spatial distance from social capital resources for the number of resources accessed. We examine the relationship between the distance to work, religious congregations, and organizations on the level of social capital. Theory posits that increased time spent commuting decreases social capital; we posit that increased distance traveled to sites of social capital generation limits neighborhood social capital but increases capital access at generation sites. We measured social capital with the Resource Generator–United States and used negative binomial regression to estimate the association between distance and number of resources accessed. Social capital resource access is higher with increased distance traveled to civic organizations. Distance from work and religious congregations does not affect social capital; distance to work erodes neighborhood social capital. These findings are counter to current theory and suggest that people are willing to travel to organizations where social capital is built.
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Giltz, Sarah M., Erin K. Grey, Joanna Gyory, Dong S. Ko, Redwood W. Nero e Caz M. Taylor. "Estimating blue crab (Callinectes sapidus) larval release sites in the Gulf of Mexico using an oceanographic particle-tracking model". Bulletin of Marine Science 96, n. 4 (1 ottobre 2020): 563–76. http://dx.doi.org/10.5343/bms.2018.0075.
Abstract (sommario):
Small, widely-dispersing, pelagic larvae are difficult to monitor through direct observation, but biophysical models can provide greater understanding of dispersal patterns. Here, we used a technique of reversing time in a biophysical model to estimate larval release sites of the blue crab, Callinectes sapidus, in the northern Gulf of Mexico by backtracking from known locations of postlarval settlement. We modeled surface ocean movement in reverse time from four settlement sites (Grand Isle, Louisiana; Ocean Springs, Mississippi; Dauphin Island, Alabama; and Pensacola, Florida). In the Gulf of Mexico, blue crab fisheries are managed at the state level. We found on average 73% of the larvae were traced back to larval release sites in the same state as settlement. Barrier island release sites accounted for 11% of settlement at Grand Isle and 17% at Dauphin Island. Less than 0.1% of larvae that settled in Grand Isle were tracked back to a known blue crab spawning area located to the south west, Ship Shoal. The distance traveled by larvae was highest in Pensacola and Grand Isle. The coefficient of variation of distance traveled was highest in Dauphin Island. The average distance traveled to each settlement location ranged from 31 to 124 km. Distance traveled explained 24% of empirical settlement numbers (F1,89 = 28.82, P < 0.001;R2 = 0.24). Settlement success was higher at release sites predicted by this study than at randomly generated sites suggesting female selection of larval release sites.
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Rego, Nuno, e Rui Castro. "Regenerative Braking Applied to a Student Team’s Electric Racing Motorcycle Prototype: A Theoretical Study". Applied Sciences 13, n. 6 (16 marzo 2023): 3784. http://dx.doi.org/10.3390/app13063784.
Abstract (sommario):
One crucial aspect in the design phase of an electric racing prototype is reducing the weight and size of the battery energy storage system without compromising performance. Using battery energy storage also presents range limitations. A promising solution is to implement regenerative braking as a way to divert energy from the wheel to the accumulator, thus recuperating some of it rather than losing it entirely as heat when only using mechanical brakes. MATLAB/Simulink software (Matlab R2022a version) was developed to simulate in 25 different tracks the regenerative capacity of an electric racing motorcycle developed by students for a student worldwide competition. Results point to an average increase in available energy of 11.11% for a depth of discharge of 80%, when applying 30% of the braking force on the rear wheel as regenerative braking. This translates to an average increase in traveled distance of 8.8%. Sensitivity analyses on the Circuit of Barcelona–Catalunya on the percentage of rear braking and mass allow concluding that (1) for a reduction of 5% in weight, the percentage of recuperated energy decreases from 12.21% to 12.03% and traveled distance increases from 39.635 km to 40.527 km. For a 5% weight increase, the recuperated energy increases to 12.45%, and the traveled distance decreases to 38.886 km; (2) if the percentage of rear braking were to increase or decrease by 5%, the traveled distance would increase or decrease about 1.5%, respectively.
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Baker, Steven M., Eric A. Reyier, Bonnie J. Ahr e Geoffrey S. Cook. "Assessing the Effects of Physical Barriers and Hypoxia on Red Drum Movement Patterns to Develop More Effective Management Strategies". Fishes 8, n. 4 (23 marzo 2023): 171. http://dx.doi.org/10.3390/fishes8040171.
Abstract (sommario):
Human modification of coastal ecosystems often creates barriers to fish movement. Passive acoustic telemetry was used to quantify movement patterns and habitat use of red drums (Sciaenops ocellatus) within and around a complex of coastal impoundments, and explored how the presence of artificial structures (i.e., bollards and culverts) and a hypoxia-related mortality event impacted fish movement. Results indicated bollards impede the movement of individuals with head widths greater than the mean distance between bollards (~16.0 cm). Red drum home range area and daily distance traveled were related to water dissolved oxygen concentrations; as oxygen levels decreased, fish habitat use area decreased initially. However, continued exposure to hypoxic conditions increased fish cumulative daily distance traveled. When exposed to anoxic waters, fish daily distance traveled and rate of movement were greatly reduced. These findings suggest prolonged exposure to low dissolved oxygen in combination with artificial structures can reduce movement of red drum, increase risk of mortality, and decrease habitat connectivity. Constructing and maintaining (sediment and biofouling removal) larger culvert openings and/or using wider bollard spacing would improve water circulation in impoundments, increase habitat connectivity, and facilitate movement of large sportfish inhabiting Florida’s coastal waters.
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Bergeron, John H., Scott Huber, Tracy Shane, Jason Karl, Melanie Hess, Robert Washington-Allen, Mike Cox e Andrew Hess. "150 Repeatability of Rangeland Behavioral and Social Traits Derived from Gps Collars". Journal of Animal Science 101, Supplement_3 (6 novembre 2023): 42–43. http://dx.doi.org/10.1093/jas/skad281.051.
Abstract (sommario):
Abstract The ability of an individual to cope with stressors in their environment is going to be paramount in the face of climate change. Rangeland livestock experience harsh conditions including heat and/or cold stress, water and feed restrictions and risk of predation. In extensive management systems, the ability to capture the capacity to cope with stressors of an individual in its environment is encumbered by remote locations with difficult terrain and no access to power or the internet. GPS collars can provide insights into individual land-use behavior, e.g., their impact on the environment or ability to cope with stressors, and social interactions, e.g., mothering ability. GPS collars (n = 112) developed at the University of Idaho were deployed on 57 ewes and 55 lambs (45 ewe-lamb pairs) in an extensive rangeland environment at the Great Basin Research and Extension Center in Eureka, NV. The collars recorded location data every 10 minutes from July 27th to August 18, 2022. Coordinate fixes were successfully recorded 67.11 ± 27.12% of the time and resulted in a kept record occurring every 60 ± 202 minutes. Of the ewe-lamb pair devices, 43 pairs contributed 801 ± 703 paired records (i.e., records that occurred within 5 minutes of each other). GPS coordinate locations, and their respective capture times, allow for the analysis of distance traveled, water usage, dispersion, and ewe-lamb distance. Distance traveled was analyzed on a daily basis with a weighted median distance imputed for all travel times that lasted more than 900 seconds. Dispersion was defined as the distance of an individual from the centroid of the flock in meters, and was transformed to a Z-score based on the position of individuals with GPS coordinates captured within 10 minutes of the measurement of the individual. Ewe-lamb pair distances were cube root transformed. Twin status, dam line, age, and day were fitted as fixed classes to estimate the repeatability of records for mature ewes. Repeatability estimates of daily distance traveled, daily water usage, and daily dispersion were 0.22 ± 0.05, 0.30 ± 0.06 and 0.10 ± 0.03, respectively. Daily ewe-lamb distances had a repeatability estimate of 0.45 ± 0.08. Day of recording was significant for daily distance traveled (P-value = 2.72×10-4) and water usage (P-value = 1.06×10-3). No other effects were significant in any of the models. In conclusion, PLF tools are an enabling technology that allow for passive data capture in remote locations. Our findings suggest that GPS collars can elucidate a variety of land use and social behavior traits that could serve as meaningful criteria for selection in extensive livestock production settings. Selection on these indicators of resilience may increase livestock productivity and welfare by increasing heat stress tolerance via the analysis of novel behavioral traits seen on extensive rangelands.
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Maeda, Hideyuki, Noritoshi Fukushima e Akihiro Hasumi. "Standardized Method for the Assessment of Behavioral Responses of Zebrafish Larvae". Biomedicines 9, n. 8 (24 luglio 2021): 884. http://dx.doi.org/10.3390/biomedicines9080884.
Abstract (sommario):
Zebrafish are easy to breed in a laboratory setting as they are extremely fertile and produce dozens of eggs per set. Because zebrafish eggs and the skin of the early-stage larvae are transparent, their embryos and the hearts and muscles of their larvae can be easily observed. Multiple rapid analyses of heart rate and behavior can be performed on these larvae simultaneously, enabling investigation of the influence of neuroactive substances on abnormal behavior, death, and associated pathogenetic mechanisms. Zebrafish larvae are becoming increasingly popular among researchers and are used in laboratories worldwide to study various vertebrate life phenomena; more experimental systems using zebrafish will undoubtedly be developed in the future. However, based on the available literature, we believe that the conceptualization of a protocol based on scientific evidence is necessary to achieve standardization. We exposed zebrafish larvae at 6–7 days post-fertilization to 50 repeated light–dark stimuli at either 15-min or 5-min intervals. We measured the traveled distance and habituation time through a video tracking apparatus. The traveled distance stabilized after the 16th repetition when the zebrafish were exposed to light–dark stimuli at 15-min intervals and after the 5th repetition when exposed at 5-min intervals. Additionally, at 15-min intervals, the peak of the traveled distance was reached within the first minute in a dark environment, whereas at 5-min intervals, it did not reach the peak even after 5 min. The traveled distance was more stable at 5-min intervals of light/dark stimuli than at 15-min intervals. Therefore, if one acclimatizes zebrafish larvae for 1 h and collects data from the 5th repetition of light/dark stimuli at intervals of 5 min in the light/dark test, a stable traveled distance result can be obtained. The establishment of this standardized method would be beneficial for investigating substances of unknown lethal concentration.
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Aultman, Terry, e Mary Carla Curran. "Move Over! Studying Flatfish Travel Patterns to Profile Fish Behavior". American Biology Teacher 74, n. 3 (1 marzo 2012): 164–69. http://dx.doi.org/10.1525/abt.2012.74.3.7.
Abstract (sommario):
The way an animal moves from place to place can inform us about its life and environment. In this lesson, students examine the travel patterns of juvenile flatfishes in an estuary. The process of sampling bottom-dwelling fishes is explained, and data from a university-based marine science laboratory are evaluated. Students compare the distance traveled by juvenile fish to human movement by determining their own average step length. Comparing step length to the distance-to-body-length traveled by flatfish enables students to put in perspective the journey taken by the fish.
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Sporner, Michelle L., Garrett G. Grindle, Annmarie Kelleher, Emily E. Teodorski, Rosemarie Cooper e Rory A. Cooper. "Quantification of Activity During Wheelchair Basketball and Rugby at the National Veterans Wheelchair Games: A Pilot Study". Prosthetics and Orthotics International 33, n. 3 (gennaio 2009): 210–17. http://dx.doi.org/10.1080/03093640903051816.
Abstract (sommario):
To date, no published data exists on distances and speeds traveled by rugby or basketball players during game play. The purpose of this study was to provide quantitative information of selected characteristics of wheelchair basketball and rugby game play. A miniaturized data logger was used to collect the distance traveled, average velocity, activity time, and number of starts and stops during basketball and rugby games. Participants were recruited prior to wheelchair basketball and rugby tournaments during the 2007 and 2008 National Veterans Wheelchair Games. Inclusion criteria were age 18 years or older and been participating in wheelchair basketball or rugby. The wheelchair rugby athletes on average traveled 2364.78 ± 956.35 meters at 1.33 ± 0.25 m/sec with 242.61 ± 80.31 stops and starts in 29.98 ± 11.79 min of play per game. The wheelchair basketball athletes on average traveled 2679.52 ± 1103.66 m at 1.48 ± 0.13 m/sec with 239.78 ± 60.61 stops and starts in 30.28 ± 9.59 min of play per game. Previous research has not reported basketball or rugby game play variables such as these, making this data set unique. The information could be used by players and coaches to create training protocols to better prepare for game conditions.
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Berrigan, D., e J. R. Lighton. "Bioenergetic and kinematic consequences of limblessness in larval Diptera". Journal of Experimental Biology 179, n. 1 (1 giugno 1993): 245–59. http://dx.doi.org/10.1242/jeb.179.1.245.
Abstract (sommario):
We report the cost of transport and kinematics of terrestrial locomotion by larval blowflies (Protophormia terraenovae, Diptera: Calliphoridae). We contrast inter- and intra-individual methods for estimating minimum cost of transport (MCOT) and the relationship between speed, contraction frequency and distance traveled per contraction. The minimum cost of transport calculated from intra-individual data is 2297 +/− 317 J kg-1 m-1 (S.E.M.) and the MCOT calculated from inter-individual comparisons is statistically indistinguishable at 1910 +/− 327 J kg-1 m-1. These values are almost ten times higher than the predicted value for a similar-sized limbed arthropod. Fly larvae travel by repeated peristaltic contractions and individual contractions cost about the same amount as individual strides in limbed insects. Both contraction frequency and distance traveled per contraction increase linearly with speed. Doubling the contraction frequency or the distance traveled per contraction approximately doubles speed. The cost of transport in fly larvae is among the highest recorded for terrestrial locomotion, confirming the suggestion that biomechanical and kinematic properties of limbless organisms with hydraulic skeletons lead to very high costs of transport.
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Tokgöz, Emre, Iddrisu Awudu, Saravanan Kuppusamy e Yuchuan Du. "Advancing Transportation Routing Decisions Using Riemannian Manifold Surfaces". Journal of Advanced Transportation 2020 (29 settembre 2020): 1–17. http://dx.doi.org/10.1155/2020/2098495.
Abstract (sommario):
We consider several real-world driving factors such as the time spent at traffic signs (e.g., yield signs and stop signs), speed limits, and the topology of the surface to develop realistic and accurate routing solutions. Though these factors increase the complexity of modeling, they provide the flexibility to evaluate the routing solutions from different perspectives: cost, distance, and time, to name a few. First, we develop a set of algorithms based on the Riemannian manifold surface (RMS) to factor in the Earth’s curvature to calculate distances. Second, we present a multiobjective, nonlinear, mixed-integer model (MINLP) that minimizes the distance traveled, time traveled, traveling costs, and time spent on traffic signs to design and evaluate the routes where the waiting times associated with traffic lights, stop signs, and yield signs are stochastic. Finally, we apply MINLP and RMS-based algorithms to a set of real-life and short- and long-distance transportation problems and analyze the results from computational experiments and discrete event simulations. We show that our approaches are on par with the state-of-the-art application, Google Maps, and yield realistic routing solutions that generate significant cost savings.