scholarly journals Learning Analytics Impact: Critical Conversations on Relevance and Social Responsibility

2020 ◽  
Vol 7 (3) ◽  
pp. 1-5
Author(s):  
Xavier Ochoa ◽  
Simon Knight ◽  
Alyssa Friend Wise

Our 2019 editorial opened a dialogue about what is needed to foster an impactful field of learning analytics (Knight, Wise, & Ochoa, 2019). As we head toward the close of a tumultuous year that has raised profound questions about the structure and processes of formal education and its role in society, this conversation is more relevant than ever. That editorial, and a recent online community event, focused on one component of the impact: standards for scientific rigour and the criteria by which knowledge claims in an interdisciplinary, multi-methodology field should be judged. These initial conversations revealed important commonalities across statistical, computational, and qualitative approaches in terms of a need for greater explanation and justification of choices in using appropriate data, models, or other methodological approaches, as well as the many micro-decisions made in applying specific methodologies to specific studies. The conversations also emphasize the need to perform different checks (for overfitting, for bias, for replicability, for the contextual bounds of applicability, for disconfirming cases) and the importance of learning analytics research being relevant by situating itself within a set of educational values, making tighter connections to theory, and considering its practical mobilization to affect learning. These ideas will serve as the starting point for a series of detailed follow-up conversations across the community, with the goal of generating updated standards and guidance for JLA articles.

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3972
Author(s):  
Maha Abdel-Halim ◽  
Dalia Issa ◽  
Bruno Ramos Chrcanovic

The present review aimed to evaluate the impact of implant length on failure rates between short (<10 mm) and long (≥10 mm) dental implants. An electronic search was undertaken in three databases, as well as a manual search of journals. Implant failure was the outcome evaluated. Meta-analysis was performed in addition to a meta-regression in order to verify how the risk ratio (RR) was associated with the follow-up time. The review included 353 publications. Altogether, there were 25,490 short and 159,435 long implants. Pairwise meta-analysis showed that short implants had a higher failure risk than long implants (RR 2.437, p < 0.001). There was a decrease in the probability of implant failure with longer implants when implants of different length groups were compared. A sensitivity analysis, which plotted together only studies with follow-up times of 7 years or less, resulted in an estimated increase of 0.6 in RR for every additional month of follow-up. In conclusion, short implants showed a 2.5 times higher risk of failure than long implants. Implant failure is multifactorial, and the implant length is only one of the many factors contributing to the loss of an implant. A good treatment plan and the patient’s general health should be taken into account when planning for an implant treatment.


2014 ◽  
Vol 15 (3) ◽  
pp. 112-121 ◽  
Author(s):  
Judith Broady-Preston

Purpose – The purpose of this paper is to examine a range of issues and methods in relation to measuring the impact of volunteer labour on the design and delivery of all types of library services. With the increasing use of volunteers to deliver library and information services in all sectors, managers need to assess their effectiveness and evaluate the impact of their use in relation to operational service design and delivery, and on the development of the profession and professional practice as a whole. Presented here is an initial scoping study, outlining a range of issues, methods and challenges for more detailed future investigation. Design/methodology/approach – A number of methodological challenges and perspectives are identifiable. Contemporary libraries exhibit increasing similarities with Third Sector organisations, namely a complex stakeholder community, and increasing use of volunteers to supplement or replace services delivered by professional staff. Therefore, a starting point for the research is a systematic review and analysis of the methodologies developed by the Third Sector Research Centre, and those studies in the ESRC contemporary Developing Impact Evaluation strand. As a rich picture is required, both quantitative and qualitative approaches are necessary, with the overall study adopting a mixed methods approach. Findings – This paper reports the findings of the preliminary documentary analysis, literature review and scoping aspects of a large-scale study. Originality/value – Research undertaken to date (June 2014) has failed to identify any published systematic review and examination of these issues.


2020 ◽  
Vol 15 (3) ◽  
pp. 252-272 ◽  
Author(s):  
Ali Karakaş

Using the literature on transnationalism, this article explores overseas-trained Turkish scholars’ experiences and whether these have had any effects on their identity construction/transformation, professional and personal lives after returning home. This exploration is informed by quantitative and qualitative data collected from Turkish scholars who completed their MA and/or PhD degrees in English-speaking countries and are now working in universities as academics. Besides highlighting the differences between educational values and practices in Turkey and Western countries, this article also examines how these differences influence professional trajectories and negotiations of identities among overseas-trained academics, with follow-up references to the author’s autoethnography as a Western-trained scholar to spotlight the commonalities in the lived experiences of returnees. The results highlight the dynamic nature of overseas experiences and returning home with new competences, skills and a broadened worldview which results in returnees’ distinguishing themselves from those around them in their personal and professional transactions.


2018 ◽  
Vol 36 (18_suppl) ◽  
pp. LBA2553-LBA2553 ◽  
Author(s):  
Apostolia Maria Tsimberidou ◽  
David S. Hong ◽  
Jennifer J. Wheler ◽  
Gerald Steven Falchook ◽  
Aung Naing ◽  
...  

LBA2553 Background: We evaluated the impact of pathway targeted and long-term follow-up of patients (pts) with refractory cancers referred to phase I trials. Methods: Pts referred to our program (2007-2013) had CLIA molecular testing. Pts treated with matched targeted therapy (MTT) vs. non-matched therapy (NMT) were analyzed. Results: Of 3,743 pts who had testing, 1,307 had ≥1 alteration and received therapy (MTT 711, NMT 596): med. age 57 yrs, range 16-86; 39% men; med. no. of prior therapies 4, range 0-16. The most common tumors were gastrointestinal 24.2%, gynecologic 19.4%, breast 13.5%, melanoma 11.9%, and lung 8.7%. Targeting MEK/RAF and RET pathways correlated with higher rates of CR/PR/SD≥6 months (mos), PFS and OS compared to others (all P < .001) (Table). Plateau was noted in OS (start, 38 mos): 74 of 711 (10.4%) in the MTT (max 10.7+ yrs) vs. 24 of 596 (4%) in the NMT (max 6 yrs) group were alive (p < .0001). In the MTT group, factors predicting longer PFS were non-PI3K pathway MTT (p < .001), no liver metastases (p < .001), PS < 2 (p = .006), normal LDH (p < .001) and albumin (p = .01) levels, and non-single agent therapy (p = .02). Factors predicting longer OS were non-PI3K pathway MTT (p < .001), no liver metastases (p < .001), PS < 2 (p < .001), normal LDH (p < .001) and albumin (p = .001) levels, and normal PLT counts (p = .03). Conclusions: Outcomes were superior in pts matched to RET and MEK/RAF inhibitors. Factors predicting longer PFS and OS were identified. In the MTT group, 10.4% of patients had OS ≥ 38 mos, the plateau starting point. Clinical trial information: NCT00851032. [Table: see text]


2020 ◽  
Vol 8 (5) ◽  
pp. 4258-4264

The numbers of patients with skin diseases reported a dramatic increase which is a major concern and must be dealt with. The method of diagnosis is always based on physician’s observations and experiences. Many common symptoms such as side effects, allergies and even risks of skin cancer can be seen in someone following misdiagnosis, delayed diagnosis and failure to diagnose. The evaluation of skin changes is crucial to the correct diagnosis during follow-up. Through technological advances and partnerships, skin disorders can be identified and predicted and medical diagnosis outside physical limits are made. The article proposed an IoT-based skin surveillance system that facilitates the monitoring of skin patients in remote locations. In a diagnostic device for real-time skin monitoring and analysis, the proposed system architecture can be applied. A sensor fitted medical carriage is proposed in a remote location to treat individuals suffering from a common skin disorder. The system is also designed to research the impact of climate change on the disease through environmental sensors and provide pre-alertfor prevention. This addresses the many problems that people in remote areas without restricted treatment facilities face.


2021 ◽  
Vol 11 (9) ◽  
pp. 126
Author(s):  
Patricia To ◽  
Ejemai Eboreime ◽  
Vincent Agyapong

One of the many consequences of climate change is an increase in the frequency, severity, and, thus, impact of wildfires across the globe. The destruction and loss of one’s home, belongings, and surrounding community, and the threat to personal safety and the safety of loved ones can have significant consequences on survivors’ mental health, which persist for years after. The objective of this scoping review was to identify primary studies examining the impact of wildfires on mental health and to summarize findings for PTSD, depression, anxiety, and substance use. Literature searches on Pubmed and Embase were conducted in February and April of 2021, respectively, with no date restrictions. A total of 254 studies were found in the two database searches, with 60 studies meeting the inclusion criteria. Three other studies were identified and included based on relevant in-text citations during data abstraction. The results show an increased rate of PTSD, depression, and generalized anxiety at several times of follow-up post-wildfire, from the subacute phase, to years after. An increased rate of mental health disorders post-wildfire has been found in both the adult and pediatric population, with a number of associated risk factors, the most significant being characteristics of the wildfire trauma itself. Several new terms have arisen in the literature secondary to an increased awareness and understanding of the impact of natural disasters on mental health, including ecological grief, solastalgia, and eco-anxiety. There are a number of patient factors and systemic changes that have been identified post-wildfire that can contribute to resilience and recovery.


2020 ◽  
Vol 27 (4) ◽  
pp. 549-557 ◽  
Author(s):  
Shefali Haldar ◽  
Sonali R Mishra ◽  
Yoojung Kim ◽  
Andrea Hartzler ◽  
Ari H Pollack ◽  
...  

Abstract Objective Although patient-peer support technologies have demonstrated effectiveness in a variety of health contexts—including diabetes, weight loss, and cancer—less is known about how hospitalized patients can benefit from this support. We investigated the nature of peer support in the hospital and the impact this support had on patients’ hospital stays. Materials and Methods We created a technology, resembling an online health community, in which patients could exchange advice about their hospitalization. We deployed it at 1 pediatric hospital and 1 adult hospital. With 30 participants, we conducted bedside interviews, observed how they used the technology during their hospitalization, and completed follow-up phone interviews. Results Participants shared advice about several topics, including adjusting to the hospital and building relationships with providers. Contrary to concerns that such a system would primarily serve as a place for patients to “complain,” sentiment analysis showed that 23 of 36 (64%) of the shared advice reflected positive sentiment. Patients also reported positive impacts to their quality, safety, and hospital experience due to the inpatient peer support community. Discussion Participants benefited from peer support that transcended diagnoses and individual health conditions. The shared experience of being in the hospital was sufficient to yield valuable and practical peer support. Participants who did not contribute their own advice still experienced benefits from reading their peers’ advice. Conclusions Our study demonstrated the positive nature of peer advice exchanged, and the benefits of this advice on patients’ hospital stays. Inpatient peer support technologies could be an additional resource for patients to engage in their care.


1996 ◽  
Vol 7 (1) ◽  
pp. 51-54 ◽  
Author(s):  
Rui Gama Vaz ◽  
Stephen Gloyd ◽  
Ricardo Trindade

The study was designed to evaluate the impact of education on AIDS knowledge among prison inmates in Maputo, Mozambique. A 6-month follow-up study was carried out in 1993 among 300 prisoners. A knowledge, attitudes, and practices questionnaire regarding AIDS and STD was administered to each subject as part of the intake medical examination and after an educational intervention provided by 30 prisoner 'activists'. A large proportion of prisoners had high risk behaviours (65% had 2 or more sexual partners per month and 39% had a history of STD) and low AIDS knowledge at incarceration. Statistically significant increases in knowledge occurred after the intervention. Prisoners with less formal education had a poorer performance on the initial questionnaire (43% vs 69% P <0.00001) and had a greater improvement after the intervention (41% vs 24%, P <0.00001). The results demonstrate that educational interventions involving peer health educators contribute positively to the acquisition of knowledge among prisoners.


2018 ◽  
Vol 14 (2) ◽  
pp. 188-215 ◽  
Author(s):  
Thorsten Knauer ◽  
Katja Möslang

Purpose Although life cycle costing (LCC) is well established in theory and practice, little is known about the conditions of its adoption and its impact on the achievement of cost-management goals. Therefore, this paper aims to analyze the adoption and benefits of LCC. Design/methodology/approach The analyses are based on questionnaires collected from a survey of German firms. Findings The results demonstrate that the extent of LCC adoption is positively associated with the extent of guarantee and warranty costs, voluntary upfront and follow-up costs for ecological sustainability and the extent of target costing adoption. In contrast, the extent of LCC adoption is negatively associated with the amount of precursors and/or intermediates that are purchased. The results also demonstrate that firms perceive LCC to be beneficial for various aspects of cost management. Firms report that the greatest benefit of LCC is related to the identification of cost drivers. Research limitations/implications This investigation provides a starting point for future studies of the conditions of LCC adoption and the benefits of LCC. This study is subject to limitations, particularly with respect to the operationalization of our independent variables, the number of contextual variables and the general limitations of survey research. Practical implications The results inform practitioners of the situations in which it is most appropriate to adopt LCC. In addition, this study identifies various cost-management goals that are supported by the use of LCC. Originality/value This study provides the first comprehensive analysis of the conditions of LCC adoption and advances the literature regarding the impact of LCC on the achievement of cost-management goals. Furthermore, this study provides a starting point for future research into the implementation of LCC and the effects of LCC on management accounting practices.


1997 ◽  
Vol 161 ◽  
pp. 179-187
Author(s):  
Clifford N. Matthews ◽  
Rose A. Pesce-Rodriguez ◽  
Shirley A. Liebman

AbstractHydrogen cyanide polymers – heterogeneous solids ranging in color from yellow to orange to brown to black – may be among the organic macromolecules most readily formed within the Solar System. The non-volatile black crust of comet Halley, for example, as well as the extensive orangebrown streaks in the atmosphere of Jupiter, might consist largely of such polymers synthesized from HCN formed by photolysis of methane and ammonia, the color observed depending on the concentration of HCN involved. Laboratory studies of these ubiquitous compounds point to the presence of polyamidine structures synthesized directly from hydrogen cyanide. These would be converted by water to polypeptides which can be further hydrolyzed to α-amino acids. Black polymers and multimers with conjugated ladder structures derived from HCN could also be formed and might well be the source of the many nitrogen heterocycles, adenine included, observed after pyrolysis. The dark brown color arising from the impacts of comet P/Shoemaker-Levy 9 on Jupiter might therefore be mainly caused by the presence of HCN polymers, whether originally present, deposited by the impactor or synthesized directly from HCN. Spectroscopic detection of these predicted macromolecules and their hydrolytic and pyrolytic by-products would strengthen significantly the hypothesis that cyanide polymerization is a preferred pathway for prebiotic and extraterrestrial chemistry.


Sign in / Sign up

Export Citation Format

Share Document