scholarly journals Boater Safety: Communicating Weather Forecast Information to High-Stakes End Users

2012 ◽  
Vol 4 (1) ◽  
pp. 7-19 ◽  
Author(s):  
Sonia Savelli ◽  
Susan Joslyn

Abstract Recreational boaters in the Pacific Northwest understand that there is uncertainty inherent in deterministic forecasts as well as some of the factors that increase uncertainty. This was determined in an online survey of 166 boaters in the Puget Sound area. Understanding was probed using questions that asked respondents what they expected to observe when given a deterministic forecast with a specified lead time, for a particular weather parameter, during a particular time of year. It was also probed by asking respondents to estimate the number of observations, out of 100 or out of 10, that they expected to fall within specified ranges around the deterministic forecast. Almost all respondents anticipated some uncertainty in the deterministic forecast as well as specific biases, most of which were born out by an analysis of local National Weather Service verification data. Interestingly, uncertainty and biases were anticipated for categorical forecasts indicating a range of values as well, suggesting that specifying numeric uncertainty would improve understanding. Furthermore, respondents’ answers suggested that they expected a high rate of false alarms among warning and advisory forecasts. Nonetheless, boaters indicated that they would take precautionary action in response to such warnings, in proportions related to the size of boat they were operating. This suggests that uncertainty forecasts would be useful to these experienced forecast consumers, allowing them to adapt the forecast to their specific boating situation with greater confidence.

2021 ◽  
pp. 1-10
Author(s):  
Beate Muschalla ◽  
Clio Vollborn ◽  
Anke Sondhof

<b><i>Introduction:</i></b> Embitterment can occur as a reaction to perceived injustice. During the pandemic and restrictions in daily living due to infection risk management, a range of many smaller or severe injustices have occurred. <b><i>Objective:</i></b> The aim of this study is to investigate what characterizes persons with high embitterment, mental illness, embitterment and mental illness, and those without embitterment or mental health problems. <b><i>Methods:</i></b> We conducted an online survey including persons from the general population in November 2020 and December 2020, the phase during which a second lockdown took place, with closed shops, restaurants, cultural and activity sites. 3,208 participants (mean age 47 years) gave self-ratings on their present well-being, burdens experienced during the pandemic, embitterment, wisdom, and resilience. <b><i>Results:</i></b> Embitterment occurred among 16% of the sample, which is a high rate in comparison with 4% during pre-pandemic times. Embitterment was weakly correlated with unspecific mental well-being. There were more persons with embitterment than those with embitterment and a mental health problem. Persons with embitterment reported less coronavirus-related anxiety than persons without embitterment. However, embittered persons reported more social and economic burdens and more frequent experiences of losses (job loss and canceling of medical treatments). Embittered persons perceive their own wisdom competencies on a similar level as persons with mental health problems or persons without mental health problems. <b><i>Conclusion:</i></b> Embitterment is a specific potentially alone-standing affective state, which is distinguishable from general mental health and coping capacities (here: wisdom). The economic and social consequences of pandemic management should be carefully recognized and prevented by policy.


OTO Open ◽  
2021 ◽  
Vol 5 (1) ◽  
pp. 2473974X2110014
Author(s):  
Jordan Grauer ◽  
Amir Aaron Hakimi ◽  
Sonya Malekzadeh

The 2020-2021 otolaryngology residency application cycle has been immensely distorted by travel restrictions mandated in response to coronavirus disease 2019, limiting opportunities for applicants to meet and rotate with programs of interest. The purpose of this study was to evaluate otolaryngology applicants’ preferences toward the content and format of virtual residency information sessions. An anonymous online survey was developed to gauge applicants’ virtual exposure to otolaryngology programs and investigate their preferences during virtual sessions. Almost all respondents attended at least 1 virtual information session (89%). Respondents felt that the most important aspects of these sessions were meeting residents, learning about operative volume, and meeting faculty. The majority (85%) preferred these sessions last no longer than 2 hours. Participants preferred virtual sessions to include breakout sessions with participant video/microphone on. These findings have implications for future virtual resident recruitment strategies.


2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Kochu Therisa Karingada ◽  
Michael Sony

PurposeThe COVID-19 pandemic lockdown has caught many educational institutions by surprise and warranted an abrupt migration from offline to online learning. This has resulted in an education change, without any time for due consideration, as regards its impact on musculoskeletal disorders (MSD) on students. The purpose of this study is to investigate MSD related to online learning during the COVID-19 pandemic lockdown.Design/methodology/approachA cross-sectional study was conducted on undergraduate students in India. In total, 261 students participated in this online survey.FindingsThe study finds that around 80% of students have reported some symptom in the head, neck and eyes since they started online learning. In total, 58% have reported MSD symptom in the right shoulder and 56% in the right hand fingers. Besides, more than 40 % of students experienced some MSD symptoms, in almost all the body parts studied, due to online learning. Correlation analysis is conducted between time spent on online learning per day and MSD symptoms.Originality/valueThis is the first study conducted on MSD and online learning during COVID-19 pandemic.


2017 ◽  
Vol 5 ◽  
pp. 802-806 ◽  
Author(s):  
Teodor Savov ◽  
Valentina Terzieva ◽  
Katia Todorova ◽  
Petia Kademova-Katzarova

The information and communication technologies (ICT) have penetrated into almost all areas of human life. They have a dual impact on education – increase learning efficiency and train students actively to use innovations. We assess this impact by examining teachers’ experience with innovative tools in Bulgarian schools. In an anonymous online survey, we investigate their opinions on the issues related to technology integration in contemporary classrooms. The research shows that educators appreciate the benefits of technology implementation in the teaching-learning process, but they need a single structured system encompassing all technological resources and tools. This work proposes a conception for a smart classroom – an innovative learning environment that can establish and control suitable conditions for education as well as to impact the instructional process directly.


JMIR Diabetes ◽  
10.2196/17890 ◽  
2020 ◽  
Vol 5 (2) ◽  
pp. e17890
Author(s):  
Karim Zahed ◽  
Farzan Sasangohar ◽  
Ranjana Mehta ◽  
Madhav Erraguntla ◽  
Khalid Qaraqe

Background Hypoglycemia, or low blood sugar levels, in people with diabetes can be a serious life-threatening condition, and serious outcomes can be avoided if low levels of blood sugar are proactively detected. Although technologies exist to detect the onset of hypoglycemia, they are invasive or costly or exhibit a high incidence of false alarms. Tremors are commonly reported symptoms of hypoglycemia and may be used to detect hypoglycemic events, yet their onset is not well researched or understood. Objective This study aimed to understand diabetic patients’ perceptions of hypoglycemic tremors, as well as their user experiences with technology to manage diabetes, and expectations from a self-management tool to ultimately inform the design of a noninvasive and cost-effective technology that detects tremors associated with hypoglycemia. Methods A cross-sectional internet panel survey was administered to adult patients with type 1 diabetes using the Qualtrics platform in May 2019. The questions focused on 3 main constructs: (1) perceived experiences of hypoglycemia, (2) experiences and expectations about a diabetes management device and mobile app, and (3) beliefs and attitudes regarding intention to use a diabetes management device. The analysis in this paper focuses on the first two constructs. Nonparametric tests were used to analyze the Likert scale data, with a Mann-Whitney U test, Kruskal-Wallis test, and Games-Howell post hoc test as applicable, for subgroup comparisons to highlight differences in perceived frequency, severity, and noticeability of hypoglycemic tremors across age, gender, years living with diabetes, and physical activity. Results Data from 212 respondents (129 [60.8%] females) revealed statistically significant differences in perceived noticeability of tremors by gender, whereby males noticed their tremors more (P<.001), and age, with the older population reporting lower noticeability than the young and middle age groups (P<.001). Individuals living longer with diabetes noticed their tremors significantly less than those with diabetes for ≤1 year but not in terms of frequency or severity. Additionally, the majority of our participants (150/212, 70.7%) reported experience with diabetes-monitoring devices. Conclusions Our findings support the need for cost-efficient and noninvasive continuous monitoring technologies. Although hypoglycemic tremors were perceived to occur frequently, such tremors were not found to be severe compared with other symptoms such as sweating, which was the highest rated symptom in our study. Using a combination of tremor and galvanic skin response sensors may show promise in detecting the onset of hypoglycemic events.


2020 ◽  
Vol 28 ◽  
pp. 27
Author(s):  
Michael Marder ◽  
Bernard David ◽  
Caitlin Hamrock

Texas provides a unique opportunity to examine teachers without standard university preparation, for it prepares more teachers through alternative pathways than any other state. We find two advantages for mathematics and science teachers prepared in the standard way. First, since 2008 they have been staying in the classroom longer than those who pursued alternative routes. Second, we analyze student performance on Algebra 1 and Biology exams over the period 2012-2018. Algebra I students with experienced teachers from standard programs gain .03 to .05 in standard deviation units compared to students whose teachers were alternatively prepared. For Biology students there are fewer statistically significant differences, although when differences exist they almost all favor standard programs. These effects are difficult to measure in part because teachers are not assigned to teach courses with high-stakes exams at random. Nevertheless, we find strong evidence in Algebra I that students learn more when their teachers have standard preparation. In Biology there is also evidence but less compelling. Thus, we recommend that all states bolster traditional university-based teacher certification, that Texas not take drastic action to curtail alternative certification, and that other states not allow it to grow too quickly.


2021 ◽  
Vol 2 (2) ◽  
pp. 38-51
Author(s):  
Pierre-Alexandre Beylier

By applying a theoretical framework based on different models proposed in border studies literature, this article analyzes the morphological, functional, institutional and identity characteristics that make Point Roberts—an American exclave in the Pacific Northwest—a “cross-border town”. Using an online survey and face-to-face interviews, the author combines both quantitative and qualitative research methods in order to examine the forces that link Point Roberts and the Canadian city of Delta that lies across the Canada–US border. This paper highlights the specificities of this unique geographic configuration as well the challenges that the border represents.


2019 ◽  
Vol 3 (3) ◽  
pp. 167
Author(s):  
Ronal Watrianthos ◽  
Ibnu Rasyid Munthe ◽  
Rahma Muti’ah

Along with the rapid development of Social Networking Sites (SNS), social media, recently, has become a lifestyle for many people around the world, including in Indonesia. The data in January 2018 showed that in Indonesia out of 132.7 million internet users, almost all (131 million), or up 23% from the data in 2017, were Facebook users with the dominance of 18-24 years old, 35% of whom were the highest active users. The rapid growth of Facebook users annually in Indonesia, especially in the age of students and college students, encourages researchers to conduct many empirical studies of Facebook use among students. There is a tendency for using Facebook continuously to create FAD effects (Facebook Addiction Disorder) among students and can affect the spirit of learning. This study also discusses what is the motivation for using Facebook and seeing the potential for FAD to occur. In this study, an online survey over 375 respondents from several students in Labuhanbatu District was conducted. To explore respondents' motives in using Facebook, respondents were given questions that were divided into the following five motives: social interaction, leisure time, entertainment, friends, and communication. While to look for potential addiction, respondents were given questions using the Bergen Facebook Addiction (BFAD) scale. In getting a connection between the motives for using Facebook and Facebook Addiction, the data was tested by analysis of variants (ANOVA) and partial tests using SPSS software. The results obtained were 65.8% of participants were at a moderate level, while 20.3% were at a low level, and only 13.9% of participants were at a high level. While the most significant motive affecting respondents in using Facebook is the motive to fill the time and motives for communicating.


1983 ◽  
Vol 61 (4) ◽  
pp. 1105-1116 ◽  
Author(s):  
Kern Ewing

Relationships between environmental variables and species distribution were studied in a brackish intertidal marsh formed by the Skagit River as it enters the Puget Sound bay system in Washington. Transects were established which covered the range of environmental variation in the marsh. A grid of environmental measuring stations provided information on soil texture, organic content of soil fines, macroorganic material in the soil, soil temperatures, interstitial soil water salinity, soil redox potential, and site elevation. Binary discriminant analysis, a nonparametric method using species presence–absence data, was used to construct standardized residual matrices. Principal component analysis of standardized residuals (Q mode) indicated that salinity and soil texture were strongly correlated with the first factor generated, elevation with the second, and soil redox potential with the third. The factors explained, respectively, 48, 21, and 14% of the variance in the residuals matrix. From R-mode analysis, eight community types were derived: three dominated by Carex lyngbyei, two by Scirpus americanus, one by Scirpus maritimus, and two which are highly diverse.


2021 ◽  
Author(s):  
Suzana S. Jovanović-Šanta ◽  
◽  
Esma Isenović ◽  
Julijana A. Petrović ◽  
Yaraslau U. Dzichenka

About 75% of breast cancers express estrogen receptors (ERs), which is a good base for an efficient endocrine therapy. This gives the opportunity for the treatment of patients with antiestrogens, compounds that bind to the ERs and thus compete to estradiol (E2), preventing its action in progression of estrogen-depending cancers. Here we present results of testing the effect of the modified steroids, namely 17-substituted 16-nitrile 16,17-secoestrane compounds on the E2-ER complex forming, its stability, nuclear translocation and binding to DNA. Almost all compounds in moderate to high rate induced lower forming of this complex, destabilizing it – they increased Kd of this complex and decreased number of binding sites. Complex formed in the presence of some test secosteroids could pass to the nucleus, while other compounds inhibited translocation. In the presence of some compounds binding of the formed complex E2-ER to DNA was noticed. Docking followed molecular dynamics simulation was performed to reveal binding mode of E2 to ER in the presence of test secosteroids. Amino acids important for binding process and complex stabilization were detected. Analysis of the simulation data allowed identifying key amino acids and type of binding of the secoestrane compounds, important for high affinity binding of the steroidal compounds.


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