Search Results (44)

Modern organizations have migrated from localized physical offices to work-from-home environments. This surge in remote work culture has exponentially increased the demand for and usage of Virtual Private Networks (VPNs), which permit remote employees to access corporate offices effectively. However, the technology raises concerns, including security threats, latency, throughput, and scalability, among others. These newer-generation threats are more complex and frequent, which makes the legacy approach to security ineffective. This research paper gives an overview of contemporary technologies used across enterprises, including the VPNs, Zero Trust Network Access (ZTNA), proxy servers, Secure Shell (SSH) tunnels, the software-defined wide area network (SD-WAN), and Secure Access Service Edge (SASE). This paper also presents a comprehensive cybersecurity framework named Zero Trust VPN (ZT-VPN), which is a VPN solution based on Zero Trust principles. The proposed framework aims to enhance IT security and privacy for modern enterprises in remote work environments and address concerns of latency, throughput, scalability, and security. Finally, this paper demonstrates the effectiveness of the proposed framework in various enterprise scenarios, highlighting its ability to prevent data leaks, manage access permissions, and provide seamless security transitions. The findings underscore the importance of adopting ZT-VPN to fortify cybersecurity frameworks, offering an effective protection tool against contemporary cyber threats. This research serves as a valuable reference for organizations aiming to enhance their security posture in an increasingly hostile threat landscape. Full article

Background: Vascular access site complications (VASCs) after endovascular interventions requiring a large-bore access are frequent and known to be associated with increased morbidity and mortality. Although balloon-expandable covered stents (BECSs) are increasingly used in such indications, their performance in this rather hostile territory is currently unknown. We aimed to evaluate the safety and efficacy of BECSs in common femoral artery (CFA) VASCs management. Methods: This is a national multicenter retrospective study of all patients who underwent BECS implantation of the CFA due to a VASCs after an endovascular procedure between January 2020 and May 2023 in major tertiary referral centers in Hungary. Operative data were collected and follow-up ultrasound examinations were performed. Our study is registered on ClinicalTrials.gov (NCT05220540) and followed the STROBE guidelines. Results: Of the 23 patients enrolled (13 females, mean age: 74.2 ± 8.6), technical success was achieved in 21 (91.3%) cases, with one perioperative death. After an average follow-up of 18.0 ± 11.4 months, another nine (39.1%) deaths occurred, and one was VASCs-associated. BECS occlusion was detected in one (4.3%) patient, being the only reintervention (4.3%) where revascularization was also achieved. Conclusions: Although BECS implantation for CFA VASCs is feasible with a relatively high technical success rate, the mortality rate is non-negligible. Until adequately evaluated, BECS implantation in such indications is to be used with caution, ideally only within the framework of a trial. Full article

Background/Objectives: In recent years, manufacturers have developed new low-profile stent grafts to allow endovascular treatment of abdominal aortic aneurysms (AAA) in patients with small access vessels. We evaluated the early and mid-term outcomes of the Incraft (Cordis Corp, Bridgewater, NJ, USA) ultra-low profile endograft implantation in a high-volume single center. Methods: Between 2014 and 2023, 133 consecutive endovascular aneurysm repair (EVAR) procedures performed using the Incraft endograft were recorded in a prospective database. Indications included infrarenal aortic aneurysms, common iliac aneurysms, and infrarenal penetrating aortic ulcers. Mid-term results were analyzed using the Kaplan–Meier method. Results: During the study period, 133 patients were treated with the Cordis Incraft endograft, in both elective and urgent settings. The Incraft graft was the first choice for patients with hostile iliac accesses, a feature characterizing at least one side in 90.2% of the patients in the study cohort. The immediate technical success rate was 78.2%. The intraoperative endoleak rate was 51.9% (20.3% type 1 A, 0.8% type 1 B, and 30.8% type 2 endoleak). Within 30 days, technical and clinical success rates were both 99.3%; all type 1A and 1B endoleaks were resolved at the 30-day follow-up CT-angiogram. After a mean follow-up of 35.4 months, the actuarial freedom from the re-intervention rate was 96.0%, 91.1%, and 84.0% at 1, 3, and 5 years, respectively. The iliac leg patency rate was 97.1%, 94.1%, and 93.1% at 1, 3, and 5 years, respectively. No statistically significant differences were observed between hostile and non-hostile access groups, nor between the groups with grade 1, grade 2, and grade 3 access hostility. Conclusions: The ultra-low profile Cordis Incraft endograft represents a valid option for the endovascular treatment of AAA in patients with hostile iliac accesses. The procedure can be performed with high rates of technical and clinical success at 30 days and the rates of iliac branch occlusion observed during the follow-up period appear acceptable in patients with poor aorto-iliac outflow. Full article

This review aims to analyze the evidence related to violence perpetrated against transgender individuals in health services based on their narratives. This is a systematic literature review of qualitative studies. A search was carried out in the Scopus, Web of Science, Latin American and Caribbean Literature in Health Sciences (LILACS), Cumulative Index to Nursing and Allied Health Literature (CINAHL), EMBASE, and MEDLINE databases using the descriptors “transgender people”, “violence”, and “health services”. The eligibility criteria included original qualitative articles addressing the research question, with fully available text, reporting violence specifically by health workers, involving trans individuals aged 18 and above, and published in Portuguese, English, or Spanish. In addition, studies were included that reported experiences of violence suffered by the trans population, through their narratives, in health services. A total of 3477 studies were found, of which 25 were included for analysis. The results highlighted situations such as refusal of service; resistance to the use of social names and pronouns; barriers to accessing health services; discrimination and stigma; insensitivity of health workers; lack of specialized care and professional preparedness; and a system focused on binarism. The analysis of the studies listed in this review highlights the multiple facets of institutional violence faced by the transgender population in health services. It is evident that the forms of violence often interlink and reinforce each other, creating a hostile environment for the transgender population in health services. Thus, there is an urgent need to create strategies that ensure access to dignified and respectful care for all individuals, regardless of their gender identity. Full article

Rice terraces are a time-honored agricultural feature that overcomes rough terrain and hostile growing conditions. In addition to playing an essential role in agricultural production and land conservation, rice terraces have been recognized as living cultural landscapes, important agricultural heritage, and popular agritourism destinations for their aesthetic, sociocultural, and environmental values. However, there is a lack of understanding of this emerging niche market, especially from outsider perspectives. To fill the gap, this study analyzes Google Maps reviews of seventy representative rice terraces in Japan based on a mixed-method content analysis, aiming to identify visitors’ overall experiences, seasonal perceptions, and the causes of negative experiences. The results indicate that the overall experience of rice terraces in Japan includes seven themes: agricultural landscapes, times and seasons, visual perception, accessibility and infrastructure, sense of place, Genfukei of Japan, and food. Visitors’ perceptions toward the four seasons of the rice terraces have distinctive characteristics and result in different satisfaction levels. The main reasons for negative experiences are farmland abandonment, lack of character, poor accessibility, and bad timing. Leveraging the power of netnography, the study sheds light on the sustainable development of agricultural heritage tourism through the introduction of rice terrace conservation initiatives in Japan and the exploration of rice terrace experience. Full article

This paper reviews the future trends, the present situation and the prospects facing the application of Industry 4.0 technologies (e.g., Drones, texting technologies, GPS, etc.) in Iraq’s agricultural sector in general and small agribusiness industries in particular. Iraq struggles with chronic structural and emerging challenges that have hindered its food production over the years. In 2019, Iraq’s population had increased to around 39 million people, compared to 23.5 million Iraqis in 2000. This shift amounts to a 66% increase in population in 20 years. Food supply, whether locally produced or imported, has been struggling to catch up with the population growth, and Iraq has become increasingly dependent on food imports to meet domestic demand. Between 1985 and 2017, food imports increased from USD 2 billion to USD 11 billion, growing from 19 to 21% of total imports. Iraq’s economy has been highly dependent on the oil sector; with declining oil prices, politicians and international communities have emphasised that modern and smart agriculture that applies Industry 4.0 technology can increase productivity and be a source of job creation, income generation and self-reliance. Nonetheless, evidence obtained via this exploratory study using unstructured interviews (3 out 33) via an interpretive approach and conducting thematic analysis of the interviews with farmers and agri-entrepreneurs indicate that there is a long journey ahead before Iraq can rely on agriculture and new technologies, instead of oil, for its economy and to improve its food system. Moreover, Iraq’s political turmoil and uncertainty, the cyclical conflict and wars, and the corruption and mismanagement of state resources exacerbate this problem. Indeed, farmers face many challenges, such as a lack of infrastructure and security, the dominance of state-owned enterprises, and financing issues, with many farm owners struggling to access finance since there is no clear banking or credit system. On top of that issue, the diminishing of tacit knowledge among the farmers and the labour shortage issue in the agricultural sector hinders application of smart technology, as the majority of workers remaining in the market are unskilled labour. This study contributed to the literature on the application of smart technologies in agriculture and its socioeconomic effects. The exploratory nature of this study identifies areas for future research. Additionally, the arguments presented in this research highlight the challenges farmers and agri-entrepreneurs face in adopting new technologies and the tactics that they use to survive in a hostile environment like Iraq. It will also offer suggestions to help policymakers and international communities focus on intervention to help farmers and agri-entrepreneurs in Iraq to improve their performance. Full article

This paper presents an in-depth contextualized tutorial on Agricultural IoT (Agri-IoT), covering the fundamental concepts, assessment of routing architectures and protocols, and performance optimization techniques via a systematic survey and synthesis of the related literature. The negative impacts of climate change and the increasing global population on food security and unemployment threats have motivated the adoption of the wireless sensor network (WSN)-based Agri-IoT as an indispensable underlying technology in precision agriculture and greenhouses to improve food production capacities and quality. However, most related Agri-IoT testbed solutions have failed to achieve their performance expectations due to the lack of an in-depth and contextualized reference tutorial that provides a holistic overview of communication technologies, routing architectures, and performance optimization modalities based on users’ expectations. Thus, although IoT applications are founded on a common idea, each use case (e.g., Agri-IoT) varies based on the specific performance and user expectations as well as technological, architectural, and deployment requirements. Likewise, the agricultural setting is a unique and hostile area where conventional IoT technologies do not apply, hence the need for this tutorial. Consequently, this tutorial addresses these via the following contributions: (1) a systematic overview of the fundamental concepts, technologies, and architectural standards of WSN-based Agri-IoT, (2) an evaluation of the technical design requirements of a robust, location-independent, and affordable Agri-IoT, (3) a comprehensive survey of the benchmarking fault-tolerance techniques, communication standards, routing and medium access control (MAC) protocols, and WSN-based Agri-IoT testbed solutions, and (4) an in-depth case study on how to design a self-healing, energy-efficient, affordable, adaptive, stable, autonomous, and cluster-based WSN-specific Agri-IoT from a proposed taxonomy of multi-objective optimization (MOO) metrics that can guarantee an optimized network performance. Furthermore, this tutorial established new taxonomies of faults, architectural layers, and MOO metrics for cluster-based Agri-IoT (CA-IoT) networks and a three-tier objective framework with remedial measures for designing an efficient associated supervisory protocol for cluster-based Agri-IoT networks. Full article

The conventional method of centralizing information fusion is commonly employed for sorting radar signals in reconnaissance receivers. However, challenges arise when the distance between reconnaissance receivers and the fusion center is distant, or when the fusion center is compromised by hostile forces. To address these issues, this paper proposes a novel distributed information fusion method. In this method, each reconnaissance receiver is restricted to accessing adjacent nodes within an undirected graph for information transmission and local computation. The distributed Dempster’s combination rule and the cautious conjunctive rule are implemented using weight functions and consensus algorithms. Furthermore, an innovative outlier detection algorithm is incorporated into the fusion process to enhance its robustness. Experimental results demonstrate that the proposed method effectively improves the accuracy of radar signal sorting. When the sorting accuracy of a single reconnaissance receiver is equal to or higher than 60%, both fusion rules achieve a sorting accuracy of 100%. Even when the sorting accuracy of a single reconnaissance receiver is as low as 50%, the fused result still maintains a sorting accuracy of over 97%. Full article

Long bone fractures in hostile environments pose unique challenges due to limited resources, restricted access to healthcare facilities, and absence of surgical expertise. While external fixation has shown promise, the availability of trained surgeons is limited, and the procedure may frighten unexperienced personnel. Therefore, an easy-to-use external fixator (EZExFix) that can be performed by nonsurgeon individuals could provide timely and life-saving treatment in hostile environments; however, its efficacy and accuracy remain to be demonstrated. This study tested the learning curve and surgical performance of nonsurgeon analog astronauts (n = 6) in managing tibial shaft fractures by the EZExFix during a simulated Mars inhabited mission, at the Mars Desert Research Station (Hanksville, UT, USA). The reduction was achievable in the different 3D axis, although rotational reductions were more challenging. Astronauts reached similar bone-to-bone contact compared to the surgical control, indicating potential for successful fracture healing. The learning curve was not significant within the limited timeframe of the study (N = 4 surgeries lasting <1 h), but the performance was similar to surgical control. The results of this study could have important implications for fracture treatment in challenging or hostile conditions on Earth, such as war or natural disaster zones, developing countries, or settings with limited resources. Full article

Wireless sensor networks are usually applied in hostile areas where nodes can easily be monitored and captured by an adversary. Designing a key distribution scheme with high security and reliability, low hardware requirements, and moderate communication load is crucial for wireless sensor networks. To address the above objectives, we propose a new key distribution scheme based on an ECC asymmetric encryption algorithm. The two-way authentication mechanism in the proposed scheme not only prevents illegal nodes from accessing the network, but also prevents fake base stations from communicating with the nodes. The complete key distribution and key update methods ensure the security of session keys in both static and dynamic environments. The new key distribution scheme provides a significant performance improvement compared to the classical key distribution schemes for wireless sensor networks without sacrificing reliability. Simulation results show that the proposed new scheme reduces the communication load and key storage capacity, has significant advantages in terms of secure connectivity and attack resistance, and is fully applicable to wireless sensor networks. Full article

Attacks on networks are currently the most pressing issue confronting modern society. Network risks affect all networks, from small to large. An intrusion detection system must be present for detecting and mitigating hostile attacks inside networks. Machine Learning and Deep Learning are currently used in several sectors, particularly the security of information, to design efficient intrusion detection systems. These systems can quickly and accurately identify threats. However, because malicious threats emerge and evolve regularly, networks need an advanced security solution. Hence, building an intrusion detection system that is both effective and intelligent is one of the most cognizant research issues. There are several public datasets available for research on intrusion detection. Because of the complexity of attacks and the continually evolving detection of an attack method, publicly available intrusion databases must be updated frequently. A convolutional recurrent neural network is employed in this study to construct a deep-learning-based hybrid intrusion detection system that detects attacks over a network. To boost the efficiency of the intrusion detection system and predictability, the convolutional neural network performs the convolution to collect local features, while a deep-layered recurrent neural network extracts the features in the proposed Hybrid Deep-Learning-Based Network Intrusion Detection System (HDLNIDS). Experiments are conducted using publicly accessible benchmark CICIDS-2018 data, to determine the effectiveness of the proposed system. The findings of the research demonstrate that the proposed HDLNIDS outperforms current intrusion detection approaches with an average accuracy of 98.90% in detecting malicious attacks. Full article

Mindfulness-based interventions have increasingly gained the interest of health professionals in the last decade, especially practices that are short, economical, easily accessible, and physically, cognitively, and psychologically compelling. Nurses of Emergency Departments are a special, dynamic, but at the same time vulnerable group of health professionals who work in shifts and face multiple challenges. Considering the recent literature and the fact that stress and a hostile work environment are the top ranked health professionals’ challenges, there is a need for a further study of the use of mindfulness. This study aimed to investigate the effect of the application of mindfulness on nurses in the Emergency Department on several factors related to daily nursing practice and that directly affect these specific health professionals. This experimental study was performed on 14 participating nurses in the Emergency Department of a Public General Hospital in Athens, randomized into two groups: a control and an intervention group. The data collection tools were two digital smart devices, participatory observation, and semi-structured interviews. By practicing mindfulness meditation, the participating nurses in the intervention group showed improvement in their cognitive functions (attention, thinking, memory, concentration), professional interpersonal relationships, personal satisfaction and communication with patients and caregivers, sleep rate, negative emotions, and behaviors. The findings suggest that the application of mindfulness practices should be considered an easy, affordable, economical, accessible, and effective method that nurses can use to strengthen and empower themselves, enjoying its multiple benefits. The effectiveness of the application of mindfulness remains an important issue for future research in other health professionals as well. Full article

Integrating the resource-based theory, the relational view, and the contingency theory, this research advances the strategic alliance literature by providing a theoretical framework that explains alliance outcomes from both the inter-organizational and the external environmental perspectives. Specifically, we analyzed the effect of complementary resources on alliance performance through the mechanism of relational capital in an uncertain environment. We also explored the moderating roles of environmental dynamism and environmental hostility in the indirect relationship between resource complementarity and alliance performance with a moderated mediation model. Based on the empirical evidence from a survey of 210 alliance firms, we found that complementary resources that a firm can access from its strategic alliance motivate it to invest relational capital in the partnership, which in turn improves alliance performance. However, the positive link between resource complementarity and relational capital is attenuated under a highly dynamic environment. More importantly, results of the moderated mediation analysis suggest that the mediating effect of relational capital between resource complementarity and alliance performance is stronger when the environment is less dynamic, but this effect is not moderated by environmental hostility. These findings imply that complementary resources are critical antecedents of alliance performance, yet firms could not leverage the value of complementary resources to achieve alliance success without sound relational mechanisms or the ability to adapt to the uncertain environment. Full article

There is growing recognition that greenspace provides invaluable benefits to health and wellbeing, and is essential infrastructure for promoting both social and environmental sustainability in urban settings. This paper contributes towards efforts to build ‘just’ and equitable urban sustainability, and more specifically greenspace management, by drawing attention to hostility and exclusion experienced by two-spirit, lesbian, gay, bisexual, transgender, queer, genderqueer, pansexual, transsexual, intersex and gender-variant (2SLGBTQ+) park occupants. There is evidence that access to greenspace is inequitable—despite ongoing media accounts of targeted violence and discriminatory police patrolling of 2SLGBTQ+ communities in urban parks, this population has not received adequate research attention. This paper examines systemic barriers that impede urban greenspace access among 2SLGBTQ+ communities, including how the threat of violence in greenspace limits opportunities for accessing benefits associated with naturalized settings. These themes are explored within the context of the City of Toronto, Canada. Our mixed-method approach draws upon key informant interviews, key document content analysis, and ground-truthing. Our findings reveal how queer corporeality, kinship and love subvert deeply entrenched heteronormative social values and understandings of sexuality, partnership, gender, and use of public space, challenging institutional understandings of morality and daily life. The paper concludes by reflecting on the state of 2SLGBTQ+ communities’ relationships to greenspace, and potential ways forward in building greater inclusivity into the social fabric of park design and management. Full article

Background and Objectives: Italy was the first country in Europe to face the coronavirus 2019 (COVID-19) pandemic and its consequences, which led to two phases of severe restrictions for its population. This study aims to estimate the connections between the trauma of the COVID-19 emergency and the clinical features of a sample of outpatients in a Milan Community Mental Health setting, comparing the first (April 2020) and second lockdowns (November 2020). Materials and Methods: The sample included 116 consecutive outpatients recruited in April 2020 and 116 in November 2020. The subjects were evaluated with Clinical Global Impression Severity (CGI-S), Brief Psychiatric Rating Scale (BPRS-18), and Impact of Event Scale-Revised (IES-R). Results: The IES-R identified 47.4% participants in April and 50% in November with clinical scores over the cut-off. The network analysis of BPRS-18 and IES-R depicted the connection among different symptoms; in April, Unusual Thought Content, Anxiety, and Somatic Concern represented the most central items, and the strongest connections were found between Uncooperativeness and Hostility, Blunted Affect and Emotional Withdrawal, and IES-Intrusion and IES-Arousal. In the November group, the most central items were represented by Conceptual Disorganization and Emotional Withdrawal, whereas the strongest connections were found between IES-Arousal and IES-Intrusion, Excitement and Grandiosity, and Unusual Thought Content and Conceptual Disorganization. Conclusions: Our findings show continued high distress levels and increased psychological burdens during the second phase of restrictions; this could be described as “pandemic fatigue”, a general psychological weariness due to pandemic-related restrictions, as well as a lack of motivation to comply with them. As mental health professionals, our mission during these difficult times has been to keep community psychiatry services accessible, with particular regard to vulnerable and marginalized populations. Full article