Mean Loss Research Articles

The effect of testosterone treatment on bone mineral density in Klinefelter syndrome: A retrospective cohort study.

Although Klinefelter syndrome (KS) is the most frequent sex-hormone disorder, there is ongoing uncertainty about the often associated sex-hormone deficiency, its impact on common comorbidities, and therefore about prevention and treatment. In this study, we focus on bone loss, reported to occur in over 40% of KS patients, and the impact of testosterone replacement therapy (TRT) on this comorbidity. This single-center retrospective cohort study in a tertiary hospital compared the effect of treatment with TRT to no TRT on evolution of bone mineral density (BMD) in KS patients. After a medical chart review, a total of 52 KS subjects were included in this study. BMD was measured by dual-energy X-ray absorptiometry (DXA) and expressed as T-scores. The subjects were divided into three groups, according to TRT. In the subgroup that only started TRT after baseline measurements (mean age 31 years), we observed significant gain in BMD T-score at the lumbar spine (0.58 ± 0.60, p = 0.003; mean gain of 0.62% areal BMD per year) and total femur T-score (0.24 ± 0.39, p = 0.041; mean gain of 0.25% areal BMD per year) after a mean follow-up period of 7.5 years. Compared to untreated subjects, a significant difference in evolution was demonstrated at the lumbar level (+0.58 ± 0.60 vs. -0.14 ± 0.42, p = 0.007). In untreated subjects with normal testosterone levels, a loss of BMD (-0.27 ± 0.37, p = 0.029; mean loss of 0.49% areal BMD per year) at the femoral neck was measured. This decline was equal to the predicted loss seen in the general male population. TRT results in BMD gain in patients with KS with testosterone deficiency, mainly at the lumbar spine. However, this effect is limited (0.62% per year). Patients who were not treated with TRT because of sufficient endogenous testosterone levels, showed only the predicted age-related bone loss during follow-up. The need for TRT in maintaining bone health in KS should be evaluated on an individual basis according to the degree of sex steroid deficiency.

Long-term performance of implants with moderately rough anodized surface supporting single-tooth restorations: Aretrospective analysis with an up to 15-year follow-up.

This retrospective study aimed to evaluate long-term clinical and radiologic performance of anodized surface implants supporting single implant restorations. Patients who received at least one anodized surface implant for a single-tooth restoration between 2003 and 2004 in the Brånemark clinic (Göteborg, Sweden) were included in the study. The assessed outcomes included implant survival, biological and technical complications, as well as marginal bone levels (MBL) based on radiographs. Baseline data on patient demographics, implant placement, and surgery details were also collected. The cumulative survival rate (CSR) was calculated using the Kaplan-Meier survival analysis. The study included 97 patients with 129 implants. Mean patient age at the time of implant placement was 31.7± 16.4 years. All implants were placed in a two-stage approach with delayed loading. The last follow-up visit was on average 13.4± 4.8 years after implant insertion. Three implants failed, yielding the implant-level 15-year CSR of 97.4%. Majority of the implants had no biological (70.5%) nor technical (81.4%) complications. The mean MBL was -1.0± 0.7 mm (n= 101) at prosthetic placement and -1.8± 1.0 mm (n= 80) at the last follow-up, while the mean marginal bone loss (MBL) from prosthetic placement to last follow-up was 0.6± 1.1 mm (n= 65). Moderately rough anodized implants have shown favorable long-term outcomessingle-tooth indication, with high survival and a low rate of technical complications. Furthermore, long-term studies are needed to present longitudinal data on peri-implantitis.

Quantifying the potential benefits of risk-mitigation strategies on future flood losses in Kathmandu Valley, Nepal

Abstract. Flood risk is expected to increase in many regions worldwide due to rapid urbanization and climate change if adequate risk-mitigation (or climate-change-adaptation) measures are not implemented. However, the exact benefits of these measures remain unknown or inadequately quantified for potential future events in some flood-prone areas such as Kathmandu Valley, Nepal, which this paper addresses. This study examines the present (2021) and future (2031) flood risk in Kathmandu Valley, considering two flood occurrence cases (with 100-year and 1000-year mean return periods) and using four residential exposure inventories representing the current urban system (Scenario A) or near-future development trajectories (Scenarios B, C, D) that Kathmandu Valley could experience. The findings reveal substantial mean absolute financial losses (EUR 473 million and 775 million in repair and reconstruction costs) and mean loss ratios (2.8 % and 4.5 %) for the respective flood occurrence cases in current times if the building stock's quality is assumed to have remained the same as in 2011 (Scenario A). Under a “no change” pathway for 2031 (Scenario B), where the vulnerability of the expanding building stock remains the same as in 2011, mean absolute financial losses would increase by 14 %–16 % over those of Scenario A. However, a minimum (0.20 m) elevation of existing residential buildings located in the floodplains and the implementation of flood-hazard-informed land-use planning for 2031 (Scenario C) could decrease the mean absolute financial losses of the flooding occurrences by 9 %–13 % and the corresponding mean loss ratios by 23 %–27 %, relative to those of Scenario A. Moreover, an additional improvement of the building stock's vulnerability that accounts for the multi-hazard-prone nature of the valley (by means of structural retrofitting and building code enforcement) for 2031 (Scenario D) could further decrease the mean loss ratios by 24 %–28 % relative to those of Scenario A. The largest mean loss ratios computed in the four scenarios are consistently associated with populations of the highest incomes, which are largely located in the floodplains. In contrast, the most significant benefits of risk mitigation (i.e., largest reduction in mean absolute financial losses or mean loss ratios between scenarios) are experienced by populations of the lowest incomes. This paper's main findings can inform decision makers about the benefits of investing in forward-looking multi-hazard risk-mitigation efforts.

One-Piece Zirconia Oral Implants for Single Tooth Replacement: Five-Year Results from a Prospective Cohort Study

The intention of this 5-year prospective cohort investigation was to clinically and radiographically investigate the outcomes of a one-piece zirconia implant system for single tooth replacement. Sixty-five patients received a total of 66 single-tooth implants. All implants immediately received temporary restorations and were finally restored with all-ceramic crowns. Follow-ups were performed at the prosthetic delivery, after 1, 3, and 5 years. Peri-implant and dental soft-tissue parameters were evaluated and patient-reported outcomes recorded. To monitor peri-implant bone remodelling, standardised radiographs were taken at the implant insertion and at the 1-, 3-, and 5-year follow-ups. In the course of 5 years, 14 implants were lost, resulting in a cumulative implant survival rate of 78.2%. The mean marginal bone loss from the implant insertion to the 5-year follow-up amounted to 1.12 mm. Probing depth, clinical attachment level, bleeding, and plaque index increased over time. In 91.5% of the implants, the papilla index showed levels of 1 or 2, respectively. At the end of the study, the patient satisfaction was higher compared to the pre-treatment measurements. Due to the low survival rate after five years and the noticeably high frequency of advanced bone loss observed in this study, the implant has not met the launch criteria, as it would have not been recommended for routine clinical use.

Is 3D-printed Titanium cage a reliable option for 3-level anterior cervical discectomy and fusion in treating degenerative cervical spondylosis?

To assess the clinical and radiographical outcomes of 3-level anterior cervical discectomy and fusion (ACDF) with a 3D-printed titanium cage in treating degenerative cervical spondylosis. In this study, 25 patients with degenerative cervical spondylosis who underwent 3-level ACDF using a 3D-printed titanium cage from March 2019 to June 2021 were retrospectively enrolled. The patient-reported outcome measures (PROMs) were evaluated by visual analog scale (VAS) for the neck (VAS-neck) and arm pain (VAS-arm), Neck Disability Index (NDI) score, Japanese Orthopedic Association (JOA) score, SF-12 concise health survey, and the Odom criteria. The radiographical parameters, including C2-C7 lordosis, segmental angle, segmental height, and subsidence, were assessed. The mean duration of follow-up was 25.6 months. Bony fusion was achieved in all patients (100%). In three patients (12%) mild dysphagia was observed during the follow-up. The VAS-neck, VAS-arm, NDI score, JOA score, SF-12 score, C2-C7 lordosis, and segmental angle improved noticeably at the latest follow-up. Based on the Odom criteria, 22 patients (88%) reported satisfactory (excellent or good). The mean loss of C2-C7 lordosis and segmental angle between the immediate postoperative and the latest follow-up values were 1.6° ± 0.5° and 1.1° ± 0.5°, respectively. The mean subsidence was 0.9 ± 0.6 mm. In patients with multi-level degenerative cervical spondylosis, 3-level ACDF using the 3D-printed titanium cage can effectively relieve the symptoms, stabilize the spine, and restore segmental height and cervical curvature. It is proven to be a reliable option for patients with 3-level degenerative cervical spondylosis. However, a future comparative study involving a larger population and longer follow-up time may be required to further evaluate the safety, efficacy and outcomes of our preliminary results.

A Comparative Study of the Efficacy of Intraoperative Intravenous Oxytocin and Intramuscular Oxytocin Versus Conventional Intramuscular Oxytocin for Third-Stage Labour in Elective Cesarean Section.

Objective To study the efficacy of intraoperative IV oxytocin and intramuscular (IM) oxytocin versus conventional intramuscular oxytocin alone for active management of the third stage of labor in lower segment cesarean section (CS). The study was performed to determine the effect of 5 IU (International Unit) oxytocin infusion at the time of skin incision and that of 10 IU IM oxytocin infusion after delivery in reducing blood loss during and after CS, in comparison with the effect of administrating conventional 10 IU IM oxytocin in the same time period. In addition, it assessed the ability of the IV+IM oxytocin group to reduce the need for additional uterotonic as well as its safety determination and postoperative blood transfusion in CS. Materials and methods It is a randomized control study. The effect of 5 IU of oxytocin infusion at the time of skin incision and 10 IU of IM oxytocin (IV+IM) in reducing blood loss during and after the CS was compared to conventional 10 IU IM oxytocin. Results The study showed that the IV+IM group had a mean blood loss of 316.5 ± 74.36 ml, while the IM group had a mean loss of 403.90 ± 107.2 ml (p-value < 0.001) from placental delivery to the end of CS. A total of 90% of the patients in the IV+IM group had blood loss <50 ml compared to 95% of patients in the IM group who had a blood loss between 50 and 100 ml range from the end of cesarean to two hours postpartum. When total blood loss was compared in both groups, 84% of patients had a blood loss between 300 and 400 ml, compared to 81% of the patients in the IM group who had blood loss of 400-500 ml. Total blood loss in the IM group was 483.20 ± 115.86 ml, which was significantly higher compared to the IV group, 362.60 ± 78.07 ml (p-value=<0.001). Conclusion 5IU oxytocin infusion at the time of skin incision and 10 IU IM oxytocin after delivery of the baby significantly reduced the amount of blood loss, need for blood transfusion, and additional uterotonics during and after lower segment CS.

Depression, PTSD, and suicidal ideation among ex-ultra-Orthodox individuals in Israel

ABSTRACT Introduction: Disaffiliating from an ultra-Orthodox society is complex and challenging. The process includes dealing with culture shock, traumatic experiences, education gaps, and disconnection from familiar surroundings. Thus, ex-ultra-Orthodox individuals (ex-ULTOIs) may face loneliness, lack of belongingness, and loss of meaning, which may relate to high psychological distress such as depression and suicide ideation. In the present study, we sought to shed light on the distress of ex-ULTOIs in Israel and to understand the disaffiliation-related characteristics that may relate to their distress levels. Method: The sample comprised 755 participants, aged 19–54, who left their ultra-Orthodox Jewish lifestyle and communities. Participants completed self-report questionnaires tapping depression, anxiety, posttraumatic stress disorder (PTSD) symptoms, suicide ideation and behaviour, as well as demographics and disaffiliation-related characteristics. Results: Nearly half of the sample (N = 332, 45.9%) reported symptom intensity meeting the current criteria for major depressive disorder. Moreover, 46.7% reported symptoms meeting PTSD criteria, and 34.5% reported having suicidal ideations in the past year. Hierarchical regression analyses revealed that the intensity of past negative life events, the nature of motives for disaffiliation, and the longer duration of the disaffiliation process contributed to the severity of distress. Conclusions: The study's findings reveal that ex-ULTOIs suffer from high mental pain levels, particularly depression, PTSD, and suicidal risk. Importantly, experiencing disaffiliation as traumatic and longer durations of the process may facilitate greater mental pain and distress symptoms. These findings emphasize that ex-ULTOIs must be continually assessed, especially when their disaffiliation processes are experienced as traumatic.

The effect of a convergent transmucosal neck on soft tissues and radiographic outcomes: a 1-year follow-up randomized controlled trial

PurposeThe aim of this randomized controlled clinical trial was to evaluate peri-implant marginal bone levels (MBLs) and soft tissue dimension changes 1 year after loading. Patients in the control group received bone-level implants, whereas in the test group, tissue-level implants with a convergent transmucosal neck were used.Material and methodsMBLs were calculated by measuring the distance from the implant shoulder to the first visible bone-to-implant contact using standardized periapical digital radiographs. Baseline (day of loading) and follow-up digital models obtained with an intraoral scanner were used to quantify the changes in the peri-implant soft tissue dimensions with a best-fit algorithm.ResultsThe difference between final and baseline MBLs showed a mean bone loss of 0.16 ± 0.01 mm in the test group (n = 15) and 0.45 ± 0.09 mm in the control group (n = 14) (p > 0.05). Soft tissue contour at the level of the gingival margin (GM) increased by 1.96 ± 2.69 mm in the test group and 0.65 ± 0.42 mm in the control group (p = 0.167). Both groups showed a coronal displacement of the gingival margin with no significant differences among them.ConclusionsThe present study demonstrated peri-implant hard and soft tissues stability at both implant designs with no significant differences 12 months after loading.Clinical relevanceThere is still insufficient scientific evidence to demonstrate the role and advantages of the convergent transmucosal neck on the behavior of the peri-implant soft and hard tissues stability compared to a straight neck in bone-level implants 12 months after loading.

“It's not that I don't have things to do. It just all revolves around me” – men's reflections on meaning in life in the transition to retirement in Denmark

Retirement may bring about significant changes for those who retire. Studies have shown that men find it harder than women to adapt to retirement, putting them at greater risk of identity and meaning loss, which may reduce subjective well-being and increase the risk of depression. While men may experience retirement as a challenging life event that triggers processes of meaning-making motivated by an appropriation of meaning to a new life situation, their experiences of meaning in retirement are yet to be investigated. The aim of this study was to explore Danish men's reflections on meaning in life in the transition to retirement. Forty in-depth interviews were carried out with newly retired men between fall 2019 and fall 2020. Interviews were recorded, transcribed, coded, and analyzed using an abductive approach informed by an ongoing interaction between empirical insights and psychological and philosophical perspectives on meaning in life. Six themes central to men's meaning-making in the transition to retirement were identified: family ties, social connectedness, structure of everyday life, contribution, engagement, and time. On this basis, it is suggested that reestablishing a sense of belonging and engagement are central to meaningfulness in the transition to retirement. Having a web of relations, a sense of being part of a social entity, and engaging oneself in something that provides intersubjective value may replace senses of meaning found previously in work life. A better understanding of meaning in men's transitions to retirement may provide a valuable knowledge base for efforts seeking to strengthen men's transition to retirement.

Lost in Fragmentation: On how to deal with Fragments of a special Performance Form from Mali in the Collection KOLK 17 in Lübeck

On the basis of three selected pieces from a 1991 acquisition documented by both the collector and the museum, it is shown that many of the approximately 60 puppets from Mali within the collection KOLK 17 in Lübeck are presumably set pieces from movable animal puppet stages, a special form of costume puppets that only exists in Mali. It is demonstrated that the terms ascribed to the puppets often do not do justice to the performing objects, since they only describe individual elements and do not take the actual performative action into account. Particularly in the case of those puppets that are animated by the physical movement of the puppet player—as is the case with costume puppets—a fragmentary view of the performing objects leads to an enormous loss of meaning. The complexity of moving animal puppet stages is demonstrated by a presentation of their versatile performance techniques and stage contexts. How the puppets from Mali within the collection KOLK 17 were actually played could not be conclusively clarified. Nevertheless, the objects could be extended to include possible contexts of use and meaning: these contexts are essential for further research.

Examining livestock depredation and the determinants of people's attitudes towards snow leopards in the Himalayas of Nepal

AbstractLivestock depredation by snow leopards Panthera uncia poses a significant threat to the livelihoods of pastoral communities and engenders negative attitudes towards the species, threatening its survival. We conducted 104 semi-structured interviews within local communities (livestock herders and owners) in the Nyesyang valley of Manang District, in the Annapurna Conservation Area, western Nepal, to assess the status of livestock depredation and community attitudes towards snow leopards. During February 2016–January 2018, respondents reportedly lost 279 livestock to snow leopards (mean loss of 1.3 livestock per household), comprising 3.7% of the total stockholding in 2018. This loss amounts to a monetary loss of USD 319 per annum for each household. Only half of the households who lost livestock to snow leopards in the previous 2 years received compensation from the Conservation Area. Almost an equal proportion of respondents held positive (42%) and negative (41%) attitudes towards snow leopards. An ordered logistic regression analysis revealed that being a woman, being illiterate, owning a high number of large-bodied livestock and relying primarily on agropastoralism were factors associated significantly with negative attitudes towards snow leopards. We recommend focusing conservation education on illiterate community members and engaging more women in conservation programmes, along with a community-based insurance scheme for large-sized livestock to mitigate losses and improve local community attitudes towards snow leopards.

Millimeter-Wave Image Deblurring via Cycle-Consistent Adversarial Network

Millimeter-wave (MMW) imaging has a tangible prospect in concealed weapon detection for security checks. Typically, a one-dimensional (1D) linear antenna array with mechanical scanning along a perpendicular direction is employed for MMW imaging. To achieve high-resolution imaging, the target under test needs to keep steady enough during the mechanical scanning process since slight movement can induce large phase variation for MMW systems, which will result in a blurred image. However, in the scenario of imaging of a human body, sometimes it is difficult to meet this requirement, especially for the elderly. Such blurred MMW images would reduce the detection accuracy of the concealed weapons. In this paper, we propose a deblurring method based on cycle-consistent adversarial network (Cycle GAN). Specifically, the Cycle GAN can learn the mapping between the blurred MMW images and the focused ones. To minimize the effect of the shaking blur, we introduce an identity loss. Moreover, a mean squared error loss (MSE loss) is utilized to stabilize the training, so as to obtain more refined deblurred results. The experimental results demonstrate that the proposed method can efficiently suppress the blurring effect in the MMW image.

Making Sense or Non-Sense? Communicating COVID-19 Guidelines to Young Adults at Danish Folk High Schools.

Little is known about young people's behaviors and responses under outbreaks of infectious diseases such as the COVID-19 pandemic, especially in institutional settings. This research investigated the reactions of young adults residing at Danish folk high schools (FHSs) towards COVID-19 guidelines and the communicative styles used to enforce COVID-19 guidelines. The qualitative data consists of focus group discussions (FGDs) with students, interviews with staff, and participant observations, as well as survey data from 1800 students. This study showed that young adults reacted negatively when first faced with the new reality of COVID-19 restrictions. They expressed distress over the loss of meaning (non-sense), loss of sense of community, as well as uncertainty. Hygiene guidelines, however, made immediate sense and were socially well accepted. Most FHSs actively involved students in risk communication and creative examples of community-building communication were identified. This study demonstrates that successful risk communication at educational institutions must take into consideration how young adults make sense of and cope with the uncertainties of life during crisis situations including epidemics.

Biological Stabilisation vs Mechanical Fixation: Do We Always Require Instrumentation in Anterior Decompression Surgeries for Thoracolumbar Spinal Tuberculosis?

A retrospective cohort study. To compare the outcomes of anterior decompression with bone grafting alone and anterior decompression with bone grafting and fixation. 93 patients with minimum 2year follow-up were included in the study. 50 patients had undergone anterior decompression with bone grafting without instrumentation (group 1) and 43 patients with instrumentation (group 2). Both groups were compared using their demographic data, vertebral level of involvement, neurological recovery and progression of kyphotic deformity. Demographic data and pre-operative parameters were comparable in both groups. The mean (SD) of pre-operative kyphotic angle (in degrees) in group 1 was 29° (8.47°) and in group 2 was 29.81° (9.51°). The mean loss of correction at follow-up was 9.6° for group 1 compared to 3.4° for group 2. The mean loss of correction in patients of group 1 involving upper thoracic spine was 5.6°. There was no significant difference between the two groups across different age groups. Use of anterior instrumentation for decompression surgeries in cases of tubercular spine have shown significantly better results compared to strut grafting alone with respect to restricting the progression of kyphotic deformity at follow-up. Instrumentation may be avoided in patients older than 60years of age and those involving the upper thoracic spine, more so if both of these co-exist. However, further studies are needed to make our patient selection more rational, so as to avoid the failures and complications of this morbid procedure. The online version contains supplementary material available at 10.1007/s43465-023-00827-4.

To Compare the Outcomes of Bipolar Electro Cautery Tonsillectomy Vs Cold Steel Dissection Pediatric Tonsillectomy in Terms of Mean-Operative Time and Intra-Operative Blood Loss

Background: One of the most popular surgical operations performed using a variety of techniques is a tonsillectomy. The two that are used the most frequently are the traditional cold dissection technique (CDT) and electrocautery, the latter of which is carried out using the monopolar and bipolar electrocautery procedures (BET).All techniques used during tonsillectomy are intended to lessen perioperative bleeding, the intensity of felt pain, and postoperative morbidities. Aim: To compare the outcomes of the bipolar electro cautery tonsillectomy versus cold steel dissection pediatric tonsillectomy in terms of mean-operative time and intra-operative blood loss. Setting: ENT department of Sir Ganga Ram Hospital, F.J. Medical University Lahore from 11-03-2022 to 10-09-2022 Study design: Randomized Controlled Trial Study type: Quantitative study type Methods: The sample size of 110 (55 in group A 55 in group B) was estimated by using 95% confidence level, 90% power of test with an anticipated mean loss of blood during surgery of tonsillectomy i.e. 7.38±2.81m1 with bipolar electro cautery dissection and 11.73±2.86 ml with cold steel dissection. Results: One hundred and ten patients were included as per calculated sample size with the mean age of 8.96±2.42 years. The lowest age limit of children was 5 years while the maximum age limit of children was 13 years. In group A, the mean age of children was 8.80±2.46 years. In group B, the mean age of children was 9.13±2.38 years. The difference was observed as insignificant i.e. p--value = 0.481. Of 110 patients, 67(60.91%) patients were male whereas in group B 29(52.7%) were males. Similarly in group A 17(30.9%) were females and 26(47.3%) were females. The difference was observed as insignificant i.e. p--value = 0.079.In group A, the mean operative time was 19.76±4.47 minutes. Conclusion: This study concluded that bipolar electro cautery tonsillectomy showed significantly better outcome as compared to cold steel dissection pediatric tonsillectomy. Keywords: Cold dissection tonsillectomy, Electrocautery tonsillectomy, Mean operative time, Intra operative blood loss.

Spiritual well-being, dignity-related distress and demoralisation at the end of life-effects of dignity therapy: a randomised controlled trial

ObjectivesThis single-centre prospective randomised controlled study aimed to investigate the effectiveness of dignity therapy on spiritual well-being, demoralisation and dignity-related distress compared with standard palliative care.MethodsA total of 111 terminally...

Treatment of Gustilo-Anderson type III open fractures with segmental long bone loss secondary to gunshot and war ınjurıes in paediatric patients with bone segment transport by the limb reconstructıon system (LRS)

ObjectiveThe information on firearm- or explosive-related extremity injuries in children is very limited. Reports of segmental bone loss due to these types of fractures are even rarer and the treatment remains a problem. There has been no report of distraction osteogenesis with limb reconstruction system (LRS) specifically in children. We evaluated the treatment results of Gustilo–Anderson type 3 open fractures with segmental bone loss due to firearm injuries by distraction osteogenesis performed with LRS in skeletally immature patients. MethodsNine patients with Gustilo–Anderson (GA) type 3 open fractures with segmental bone loss due to firearm injuries who had not completed their skeletal development were included. Two of the patients had GA type 3a, four had type 3b, and the remaining three had type 3c. Bony and functional assessment was conducted using Association for the Study and Application of the Methods of Illizarov (ASAMI) criteria. ResultsMean follow-up period was 20.1 months (range 5.5–35 months). The mean bone loss was 45.5 mm (range 15–80 mm) before the treatment started. The mean time of external fixation (day) was 180.6. The mean distraction index (distraction period per cm) was 11.3 day/cm. The mean time for bone union index (duration of bony union per cm) was 33.7 days/cm. Bony union was achieved in all patients at the end of the treatment. Bony results as per ASAMI score were excellent in seven fractures and good in three. Functional results were excellent in five patients, good in two, and fair in two. We had no fair or poor results with respect to bony results but had two fair functional results. ConclusionsLRS provides a good treatment choice for children with fractures with segmental bone loss due to firearm injuries. It also provides easy access to the wound with its monolateral construction.

How does conservation land tenure affect economic impacts of wildlife: An analysis of subsistence farmers and herders in Bhutan

Protected areas (PA) to conserve wildlife are the cornerstone of biodiversity conservation but they can also result in increased human-wildlife conflict (HWC), which poses a serious challenge to jointly achieving sustainable development goals of food security and biodiversity conservation, particular in regions with high conservation values and subsistence farmers. In the Himalayan Kingdom of Bhutan, expanding PAs and other conservation efforts have led to increased wildlife populations that are causing more damage to crop and livestock and impacting on the livelihoods of subsistence farmers and herders. In this study, we used a social-ecological systems framework to quantify the intensity this impact and associated economic losses with identified wildlife species and compared differences between livelihood types (crop farming versus livestock husbandry) and land tenure (inside versus outside protected areas). Results indicated that Meso-scale wildlife species that are not the focus of conservation caused higher economic losses. Approximately 43% of total economic loss through crop depredation was attributed to wild pig (Sus scrofa) and 56% of the total economic loss through livestock predation was caused by wild dogs (Cuon alpinus). Losses borne by respondents whose livelihoods depend mainly on livestock were significantly higher, with a mean loss equivalent to US$1328 per household per annum, than those depending on crop production (US$171 per household per annum). Economic losses incurred through crop and livestock depredation were significantly higher for the respondents residing inside PAs, which is attributed by those households to a perceived increase in wildlife populations because of conservation policies. Interventions for prevention and mitigation of these impacts should recognize these varying unintended effects of wildlife and be better targeted at groups living in different parts of the landscape. These include expanding compensation scheme to losses caused by wild dogs and pigs, supporting ecotourism ventures within PAs to diversify income options and introducing control measures for these animals.

Impacts of wintertime meteorological variables on decomposition of Phragmites australis and Solidago canadensis in the Balaton System

A field experiment was carried out in plant litter decomposition at three sites of the Balaton System (Balaton — Kis Balaton wetland — Zala Mouth) differing in their environment type during winter 2019/2020. The largest freshwater shallow lake in Central Europe (Carpathian Basin) is the Balaton, with a surface area of about 600 km2 and an average depth of 3.25 m. Right around the lake, a nutrient filtering system, the Kis-Balaton wetland, is functioning to avoid water deterioration and eutrophication. The aim of the study was to investigate crop-weather relations in two sample species, the widely distributed native P. australis and the allied S. canadensis incubated beneath the water using leaf-bag technique to characterise plant organ decomposition. Based on our results, the most consistent meteorological variable regarding decomposition process was global radiation (r = − 0.62* to − 0.91**; r: correlation coefficient; * and ** mean that correlations are significant at the 0.05 and 0.01 levels), in each treatment. In modelling the decomposition process, out of eight meteorological variables, only the daily mean air temperatures and humidity were excluded from regression equations. On dominatingly windy days, with the increase in water temperature of the Zala Mouth, the sensitivity of the decomposition of S. canadensis litter tended to decrease as compared to P. australis. The remaining litter masses were in a Kis-Balaton > Balaton > Zala order, contrasting the water temperature gradient that decreased from the Zala to the Kis-Balaton wetland under wind-dominated conditions. Considering all sampling places in three aquatic ecosystems, there was a 2.2 and a 2.7% daily mean detritus mass loss in P. australis and S. canadensis, respectively. We concluded that the invasive S. canadensis litter decomposed more quickly than those of native P. australis, irrespective to sampling site. Increase in winter water temperature significantly promoted the litter decomposition of both plant species. The originality of the study is that it quantifies the litter decomposition for an Eastern European wetland, during wintertime.

Meaninglessness and monotony in pandemic boredom

Boredom is an affective experience that can involve pervasive feelings of meaninglessness, emptiness, restlessness, frustration, weariness and indifference, as well as the slowing down of time. An increasing focus of research in many disciplines, interest in boredom has been intensified by the recent Covid-19 pandemic, where social distancing measures have induced both a widespread loss of meaning and a significant disturbance of temporal experience. This article explores the philosophical significance of this aversive experience of ‘pandemic boredom.’ Using Heidegger’s work as a unique vantage point, this article draws on survey data collected by researchers in an ongoing project titled ‘Experiences of Social Distancing During the Covid-19 Pandemic’ to give an original phenomenological interpretation of the meaninglessness and monotony of pandemic boredom. On a Heideggerian interpretation, pandemic boredom involves either a situative confrontation with relative meaninglessness that upholds our absorption in the everyday world, or an existential confrontation with absolute meaninglessness that forces us to take up the question of our existence. Arguing that boredom during the pandemic makes this distinction difficult to sustain, I consider some of the ways in which pandemic boredom might be seen to expose and then exceed the distinctive methodological limitations of Heidegger’s philosophical interpretation of boredom.