A Review of Recent Patents on Structures Related to Tracheal Stents

2021 ◽  
Vol 15 ◽  
Author(s):  
Yudong Bao ◽  
Shengqian Qu ◽  
Yanling Zhao ◽  
Kai Li

Background: The trachea is an important part of the respiratory system. Long-term airway diseases and the effects of human physiological conditions can cause trachea stenosis. This will seriously affect patients’ physical health. Tracheal stents can provide durable support by means of dilating the narrowed area; they can effectively relieve the patient's breathing difficulties, which is of value that is more practical. Objective: To meet the vital requirements for better adaptation to the human airway environment and prevent complications associated with stent placement, the construction and materials of tracheal stents have been improved constantly. Methods: This paper investigates various representative patents related to the tracheal stent. The structure type, placement method and applications situation of these tracheal stents are discussed. Results: The characteristics of different types of tracheal stents are analyzed. This paper analyzes the main problems in its development. The solutions to the issues and the current and future research on tracheal stents are discussed. Conclusion: The tracheal stents are classified into metal stent, silicone stent, biodegradable stent and hybrid material stent. Further improvements are needed in the aspects of structural design, safety, applicability, biocompatibility, algorithm of drive model of tracheal stent. More related patents about tracheal stents need to be developed.

2012 ◽  
Vol 39 (1) ◽  
pp. 15 ◽  
Author(s):  
Kristen A. Walker ◽  
Andrew W. Trites ◽  
Martin Haulena ◽  
Daniel M. Weary

Wildlife research often requires marking and tagging animals to collect data on survival, reproduction, movement, behaviour and physiology. Identification of individual marine mammals can be carried out using tags, brands, paint, dye, photogrammetry, telemetry and other techniques. An analysis of peer-reviewed articles published from January 1980 to April 2011 addressing the effects of marking revealed a preponderance of studies focussed on short-term effects such as injuries and behavioural changes. Some marking techniques were reported to cause pain and to change swimming and haul-out behaviour, maternal attendance, and duration of foraging trips. However, marking has typically not been found to affect survival. No published research has addressed other possible long-term effects of marking related to injuries or pain responses. Studies of the more immediate effects of marking (mostly related to externally attached devices such as radio-transmitters) have shown a variety of different types and magnitudes of responses. It is important to note that studies failing to find treament differences are less likely to be published, meaning that the present and any other reviews based on published literature may be a biased sample of all research conducted on the topic. Publishing results that found no or low impacts (i.e. best practices) as well as those that found significant impacts on animals should both be encouraged. Future research under more controlled conditions is required to document acute effects of marking, including injury and pain, and to better understand longer-term effects on health, reproduction and survival. We recommend that studies using marked animals standardise their reports, with added detail on methodology, monitoring and sampling design, and address practices used to minimise the impact of marking on marine mammals.


2021 ◽  
Author(s):  
◽  
Jennifer Sian Jeffrey

<p>Bullying has gained a lot of attention in the public and academic spheres over the past two decades (Carrera, DePalma, & Lameiras, 2011; Monks et al., 2009) and is considered to be a very serious international issue (Due et al., 2005; Mullis, Martin, Foy, & Arora, 2012). There is extensive research based on the experiences of bullying, which has examined prevalence rates (Green, Harcourt, Mattioni, & Prior, 2013), distinctions between different types of bullying (Rivers & Smith, 1994; Smokowski & Kopasz, 2005) as well as the short and long term impacts (Coggan, Bennett, Hooper, & Dickinson, 2003). Through this, a strong research based understanding of bullying has been developed and a consistent definition established (Canty, Stubbe, Steers, & Collings, 2014; Carroll-Lind, 2009). However, previous research has primarily focused on the experiences of bullying, and few studies have examined how bullying is understood from the perspectives of young people. The present study aimed to bridge this gap by exploring young people’s understanding of bullying behaviour in New Zealand. Twenty participants completed a short questionnaire and structured interview, where they discussed four hypothetical scenarios, each describing a different type of bullying in a different setting. Results demonstrated that young people maintain a much broader conception of bullying than what is currently defined by academia. The academic criteria of intention to harm, repetition and an imbalance of power were not central to young people’s definitions of bullying. Rather, factors such as, the reaction of the victim, how public the behaviour was and the role of friendship were more instrumental in shaping young people’s bullying perceptions and definitions. Furthermore, it was found that the perceived relationship between bullies, victims and bystanders as well as gender differences, also influenced participants’ understanding of bullying behaviours. These findings yield important implications for the development and efficacy of intervention programs. Limitations and avenues of future research are also discussed.</p>


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Sébastien Murer ◽  
Guillaume Polidori ◽  
Fabien Beaumont ◽  
Fabien Bogard ◽  
Élisa Polidori ◽  
...  

Abstract Context Although pudendal neuralgia (PN) has received growing interest over the last few years, diagnosis remains difficult, and many different therapeutic approaches can be considered. Objectives This article aims to provide an overview of the possible treatments of PN and investigate their efficacies. Methods Utilizing PubMed and ScienceDirect databases, a systematic review was carried out and allowed identification of studies involving patients with PN, as defined by Nantes criteria, and their associated treatments. Relevant data were manually reported. Results Twenty-eight articles were selected, totaling 1,013 patients (mean age, 49 years) and six different types of interventions. Clinical outcomes, most frequently quantified utilizing the Visual Analog Scale (VAS), vary greatly with both the therapy and time after intervention (from 100 to <10%). However, neither peri nor postoperative serious complications (grade > II of Clavien–Dindo classification) are reported. Although surgery seems to provide a higher proportion of long-term benefits, identifying the most efficient therapeutic approach is made impossible by the multitude of outcome measurements and follow-up frequencies. It should also be noted that literature is sparse regarding randomized controlled trials with long-term follow-up. Conclusions Although there are a number of modalities utilized for the treatment of PN, there are no current recommendations based on treatment efficacies. This seems to be largely in part caused by the lack of standardization in outcome quantification. Future research in this field should focus on prospective cohort studies with high levels of evidence, aimed at assessing the long-term, if not permanent, benefits of available therapies.


2022 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Rasheda Weaver ◽  
Chyanne Lanae Blakey

Purpose This study aims to outline the importance of distinguishing between different types of societal crises and the role that plays in how social enterprises may respond to crises at hand. Design/methodology/approach Previous literature is used to distinguish between various types of societal crises discussed in the study. Social enterprise responses to the COVID-19 pandemic, economic recession and the racial uprising in the USA that all erupted at the start of the 2020 decade are explored to illustrate the need for different responses to each. Findings The origin and manifestation of crises differ in that they may have public health, natural, economic or even intentionally man-made origins. In addition, in times of crisis, social enterprises must be prepared to innovate, adapt or at least manage the effects of one or more crises on their organizations. These innovations may be social, technology or economic innovations. Research limitations/implications This study contributes to knowledge about the role and value of social enterprise as a tool for addressing societal issues. The three types of crises explored in this paper will likely reoccur and evolve to manifest in new ways. As such, it is imperative that research on the efficacy of social enterprises during times of crisis are conducted to inform practice, policy and future research. Practical implications This study aims to inform and encourage institutions, particularly social enterprises, to recognize that “winter always comes.” Crises always happen in life and how organizations respond to such crises will differ based on the type of crisis at hand. This study particularly contributes to knowledge by emphasizing the need for social enterprises to think about both economic uncertainty and the role they play in addressing crises in the long-term, not just when they occur. Originality/value To the best of the authors’ knowledge, this study is one of the first to explore the role and value of social enterprises as a tool for combatting major social crises such as racism, pandemics and recessions.


2021 ◽  
Author(s):  
◽  
Jennifer Sian Jeffrey

<p>Bullying has gained a lot of attention in the public and academic spheres over the past two decades (Carrera, DePalma, & Lameiras, 2011; Monks et al., 2009) and is considered to be a very serious international issue (Due et al., 2005; Mullis, Martin, Foy, & Arora, 2012). There is extensive research based on the experiences of bullying, which has examined prevalence rates (Green, Harcourt, Mattioni, & Prior, 2013), distinctions between different types of bullying (Rivers & Smith, 1994; Smokowski & Kopasz, 2005) as well as the short and long term impacts (Coggan, Bennett, Hooper, & Dickinson, 2003). Through this, a strong research based understanding of bullying has been developed and a consistent definition established (Canty, Stubbe, Steers, & Collings, 2014; Carroll-Lind, 2009). However, previous research has primarily focused on the experiences of bullying, and few studies have examined how bullying is understood from the perspectives of young people. The present study aimed to bridge this gap by exploring young people’s understanding of bullying behaviour in New Zealand. Twenty participants completed a short questionnaire and structured interview, where they discussed four hypothetical scenarios, each describing a different type of bullying in a different setting. Results demonstrated that young people maintain a much broader conception of bullying than what is currently defined by academia. The academic criteria of intention to harm, repetition and an imbalance of power were not central to young people’s definitions of bullying. Rather, factors such as, the reaction of the victim, how public the behaviour was and the role of friendship were more instrumental in shaping young people’s bullying perceptions and definitions. Furthermore, it was found that the perceived relationship between bullies, victims and bystanders as well as gender differences, also influenced participants’ understanding of bullying behaviours. These findings yield important implications for the development and efficacy of intervention programs. Limitations and avenues of future research are also discussed.</p>


2010 ◽  
Vol 24 (4) ◽  
pp. 249-252 ◽  
Author(s):  
Márk Molnár ◽  
Roland Boha ◽  
Balázs Czigler ◽  
Zsófia Anna Gaál

This review surveys relevant and recent data of the pertinent literature regarding the acute effect of alcohol on various kinds of memory processes with special emphasis on working memory. The characteristics of different types of long-term memory (LTM) and short-term memory (STM) processes are summarized with an attempt to relate these to various structures in the brain. LTM is typically impaired by chronic alcohol intake but according to some data a single dose of ethanol may have long lasting effects if administered at a critically important age. The most commonly seen deleterious acute effect of alcohol to STM appears following large doses of ethanol in conditions of “binge drinking” causing the “blackout” phenomenon. However, with the application of various techniques and well-structured behavioral paradigms it is possible to detect, albeit occasionally, subtle changes of cognitive processes even as a result of a low dose of alcohol. These data may be important for the consideration of legal consequences of low-dose ethanol intake in conditions such as driving, etc.


2015 ◽  
Vol 20 (4) ◽  
pp. 242-251 ◽  
Author(s):  
Éva Kállay

Abstract. The last several decades have witnessed a substantial increase in the number of individuals suffering from both diagnosable and subsyndromal mental health problems. Consequently, the development of cost-effective treatment methods, accessible to large populations suffering from different forms of mental health problems, became imperative. A very promising intervention is the method of expressive writing (EW), which may be used in both clinically diagnosable cases and subthreshold symptomatology. This method, in which people express their feelings and thoughts related to stressful situations in writing, has been found to improve participants’ long-term psychological, physiological, behavioral, and social functioning. Based on a thorough analysis and synthesis of the published literature (also including most recent meta-analyses), the present paper presents the expressive writing method, its short- and long-term, intra-and interpersonal effects, different situations and conditions in which it has been proven to be effective, the most important mechanisms implied in the process of recovery, advantages, disadvantages, and possible pitfalls of the method, as well as variants of the original technique and future research directions.


2020 ◽  
Author(s):  
Emily Budzynski-Seymour ◽  
James Steele ◽  
Michelle Jones

Physical activity (PA) is considered essential to overall health yet it is consistently reported that children are failing to meet the recommended levels. Due to the bidirectional relationship between affective states and PA, affective responses are a potential predictor to long term engagement. Since late March 2020 the UK government enforced ‘lockdown’ measures to help control the spread of Coronavirus (COVID-19); however, this has impacted children’s PA. Using online resources at home to support PA is now common. The primary aim of this research was to investigate the use of the Change4Life 10-minute Shake Ups to support PA by examining the effects of Disney branding upon children’s (n=32) post activity affective responses and perceived exertion. The secondary was to investigate the effect of the lockdown on PA habits. Children had similar positive affective responses and perceived effort to activities; however, branding was considered to be a key contributing factor based upon qualitative feedback from parents. Children’s PA levels dropped slightly since ‘lockdown’ was imposed; though online resources have been utilised to support PA. The use of immersive elements such as characters and narrative in PA sessions, as well as utilising online resources during ‘lockdown’ appear potentially promising for future research.


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