Arab countries account for almost 6% of the global population, yet they make up only 5% of the total cases and less than 3% of the global death toll attributed to COVID-19. COVID-19 has put the ...health systems in the various Arab Countries and their ability to deliver healthcare services under tremendous strain. The capacity and stability of any health system is important in any type of response to the pandemic, in order to ensure an effective and efficient delivery of care to the public through COVID-19 and beyond. The objective of this study is to identify the various response of health systems in Arab Countries to COVID-19, and highlight the legal and health challenges faced during the pandemic. The study identified both gaps and good practices that may be utilized in order to guide the efforts in response to COVID-19 and the recovery efforts once the pandemic is over.
To determine why the response of some health systems in Arab Countries responses are more effective than others, a three-step framework is adopted which includes, detection, containment, and treatment stages. In order to identify which countries are excelling at detection, containment, and treatment stages, several indicators were selected for each stage. To be able to understand the legal and health challenges of response to the COVID-19 pandemic, an analysis of the health systems, the resources in terms of quality and access, health workforce, and finance was conducted. Secondary data published by the Global Burden of Disease Study, and the Global Change Data Lab of the University of Oxford was used to study identified gaps and good practices to guide the responses to COVID-19 and recovery efforts once the pandemic is over.
The epidemiologic record demonstrates that that certain Arab countries are managing to control the pandemic, through a combination of mitigation strategies, suppression strategy and elimination strategy. There are several barriers and challenges in Arab health systems which have been amplified due to COVID-19 and if ignored may pose a further significant challenge in the future. Health systems in Arab countries are not sufficiently equipped to handle all healthcare needs related to COVID-19, in particular issues relating to administration, equity, finances, the supply side of healthcare, and usage of information technology.
In Arab counties, the standard response to COVID-19 was enforced by new health laws, which consist of a combination of the traditional disease control measures (testing, contact-tracing, social distancing), population-based physical distancing (including stay-at-home orders, school and business closures, and social gathering bans), travel limits (including travel bans, and border closures), and economic support measures. Acceptable healthcare quality and access, sufficient health workforce, and sufficient funds are the most imperative needs in the health system in Arab counties to provide a sustainable response to the COVID-19 pandemic.
Blockchain technology era is triggered due to current advancement in the decentralized paradigms via facilitating secure collaboration among untrusted entities consequently superseding the necessity ...for the trusted third parties’ existence. Notwithstanding its potential, blockchain scalability faces severe limitations such as low throughput, high fees, and confirmation time latency. Several scaling solutions have been proposed, including layer one solutions that substantially require fundamentally amending blockchain underlying infrastructure resulted in further scalability complications. Layer two solutions, specifically Lightning Network, is a successful cryptographic layer built atop of the Bitcoin blockchain that aims to alleviate these implications by deporting transaction processing outside blockchain while ensuring security and consensus inherited from blockchain without compromising its infrastructure. Payment channels form the core of the lightning network, facilitating fast and secure transactions between participants. However, the network encounters substantial obstacles associated with transaction amounts that exceed the current channel capacity, leading to payment failures and limiting its effectiveness. Payment Channel Networks (PCN) have been risen as an evolved replacement that solves payment channel’s issues, seeking to enhance transaction throughput and reduce confirmation delays by solving limited capacities shortages. This paper thoroughly examines PCN efficiency impacting factors that hinder its current adoption growth and avoiding its widespread employment. Additionally, existing solutions are reviewed and categorized based on the PCN building architecture. The research concludes by outlining potential research avenues and future directions to improve the efficiency and practicality of the Lightning Network PCN. This research contribution aids the advent of blockchain layer two technology and participates in its integration into real-world applications.
Reproduction is fundamental for all living things as it ensures the continued existence of a species and an improved economy in animal husbandry. Reproduction has developed since history, and diverse ...processes, such as artificial insemination and in vitro fertilization, have been developed. Semen extenders were discovered and developed to protect sperm from harmful factors, such as freeze and osmotic shock, oxidative stress, and cell injury by ice crystals. Semen extenders preserve sperm by stabilizing its properties, including sperm morphology, motility, and viability and membrane, acrosomal, and DNA integrity. Therefore, semen extenders must provide a favorable pH, adenosine triphosphate, anti-cooling and anti-freeze shock, and antioxidant activity to improve semen quality for fertilization. Hence, this review provides precise data on different semen extenders, preservative mechanisms, and essential additives for semen extenders in different animals.
The continuous advancements of blockchain applications impose constant improvements on their technical features. Particularly immutability, a highly secure blockchain attribute forbidding ...unauthorized or illicit data editing or deletion, which functions as crucial blockchain security. Nonetheless, the security function is currently being challenged due to improper data stored, such as child pornography, copyright violation, and lately the enaction of the “Right to be Forgotten (RtbF)” principle disseminated by the General Data Protection Regulation (GDPR), where it requires blockchain data to be redacted to suit current applications’ urgent demands, and even compliance with the regulation is a challenge and an unfeasible practice for various blockchain technology providers owing to the immutability characteristic. To overcome this challenge, mutable blockchain is highly demanded to solve previously mentioned issues, where controlled and supervised amendments to certain content within constrained privileges granted are suggested by several researchers through numerous blockchain redaction mechanisms using chameleon and non-chameleon hashing function approaches, and methods were proposed to achieve reasonable policies while ensuring high blockchain security levels. Accordingly, the current study seeks to thoroughly define redaction implementation challenges and security properties criteria. The analysis performed has mapped these criteria with chameleon-based research methodologies, technical approaches, and the latest cryptographic techniques implemented to resolve the challenge posed by the policy in which comparisons paved current open issues, leading to shaping future research directions in the scoped field.
Celotno besedilo
Dostopno za:
CEKLJ, DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
Background and aim
The increasing incidence of
Klebsiella pneumoniae
infections, both in the community and in hospitals, is a huge health problem. This is due to the increasing resistance of the ...bacteria to antibiotics and biofilm formation, as well as the presence of a capsule. This study focuses on two main objectives: to survey the most common capsular types in local isolates for the first time in Anbar, Iraq, on molecular level and to distinguish between infectious pathogen strains using multilocus sequence typing (MLST) for more efficient epidemiological and surveillance analysis, in order to determine the source of these strains (invasive or purebred).
Methodology
Multidrug-resistant (MDR) isolates adapted to genomic extraction and molecular screening of capsular type and MLST, and then to data processing by Pasteur Institut.
Results
For the first time, one isolate was registered as a new strain in the world with
ST 6434
; the other strains demonstrated as preregistered with
ST16
,
ST218
,
and
ST283
. 33% of MDR isolates belonged to the capsular
K2
type.
Conclusion
The study’s findings were not aligned with the global knowledge base about the distribution of capsular type in Asia. To prevent the spread of highly resistant strains, careful monitoring of virulence determinants is necessary in addition to the observation of antibiotic resistance.
E-Health care system is one of the great technology enhancements via using medical devices through sensors worn or implanted in the patient's body. Wireless Body Area Network (WBAN) offers ...astonishing help through wireless transmission of patient's data using agreed distance in which it keeps patient's status always controlled by regular transmitting of vital data indications to the receiver. Security and privacy is a major concern in terms of data sent from WBAN and biological sensors. Several algorithms have been proposed through many hypotheses in order to find optimum solutions. In this paper, an encrypting algorithm has been proposed via using hyper-chaotic Zhou system where it provides high security, privacy, efficiency and capacity in terms of long key space that ensures high resistance possibly obtained by any threat attack, key sensitivity is too high to any slight of change could be made in the encryption key and finally good statistical characteristic's analysis where the software has been used is microsoft visual studio version 10
Abstract
When the gypsum rock is exposed to the relative humidity in a closed environment for a continuous period, the result is an increase in the weight of these rocks after the passage of the ...first 24 hours, and there is no effect on the percentage of gypsum that the rocks contain, as the weight increase occurred at the same time for the different gypsum ratios. For rocks submerged in potable water and located within a humid environment, most of these rocks witnessed weight gain, with some exhibiting dissolving behavior. As for the gypsum rocks submerged with water saturated with aqueous calcium sulfate salt, they witnessed weight gain without any solubility. It is worth noting the important effect that relative humidity plays in the atmosphere at high levels, as it stimulated the saturation property to cover and overcome the famous property of gypsum rocks, which is the melting at high humidity.
Since its discovery, amphotericin B (AmB) is still one of the most common first-line choices in treatment pulmonary mycoses for over seventh decades from discovery. AmB which is belonged to the ...polyene group has a wide spectrum in vitro and in vivo antimicrobial activity against fungi and parasites, resistance to AmB is rare despite extensive use. Recently, some studies focused on the potential antimicrobial action of AmB against some enveloped viruses such as human immunodeficiency virus, Japanese encephalitis virus, and rubella virus. Coronaviruses are enveloped positive-sense RNA nucleic acid viruses that have club-like spikes, characterized by a distinctive replication strategy; they are round and sometimes pleomorphic shapes. COVID-19 is regarding the new genera of coronaviridae that appear the first time in Wuhan, China, in early December 2019. Due to the continuous spreading of the novel COVID-19 with the exponential rise in death numbers, new therapeutic development is urgent, in general, there are no specific antiviral drugs or vaccines for 2019-novel coronavirus. Hence, this review may serve as an impetus for researchers working in the field of medical microbiology, vaccination, and antiviral drug design by discussion the most recent information about the antiviral action of AmB against COVID-19 infection as well as trying to a deep understanding of major properties, mechanisms of action, immune system responses, and antimicrobial efficiency of AmB. Since AmB is expected to alter the structure of the viral envelope, membrane integrity of cells, and internal cellular organelles, besides its other unique properties such as host immunomodulatory effects, so this review suggested that AmB as an effective anti-fungi drug thus may hold the promise of formulating a novel therapeutic option to treat COVID-19.
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