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تناول هذا الكتاب المفهوم الشامل الذي مفاده أنك تريد إنجاز معظم ما تريد فعله في العمل وتظل محتفظا بسلامتك العقلية وبمجرد أن تفهم وفرة الفوائد التي تأتي مع إنجاز الأمور في مقابل الضغط والتوتر اللذين يتراكمان مع بقاء الأشياء دون إنجازها ستتحرك بشكل أكثر سهولة نحو إتمام المهام وتتجنب عدم إتمامهما كأنه طاعون.

“Not everything that can be counted counts. Not everything that counts can be counted.” William Bruce Cameron Journal metrics mania started over 50 years ago with the impact factor that has since become so well entrenched in publishing. Ask anyone where they would like to publish their research and most will reply by saying in a journal with the highest impact factor. While this suggests quality and a degree of vetting by the scientific community, the impact factor has also been used to benchmark and compare journals. Impact factors are often used as a proxy of a journal 's quality and scientific prestige. However, is medicine dependent on a valuation system that may be grounded in falsity? Much about this measure is imperfect and destructive. Journals can manipulate the impact factor by refusing to publish articles like case reports that are unlikely to be cited or, conversely, by publishing a large proportion of review articles, which tend to attract more citations. Another tactic that may be used is to publish articles that could be highly cited early in the year, thereby leaving more time to collect citations. Many use the impact factor as an important determinant of grants, awards, promotions and career advancement, and also as a basis for an individual's reputation and professional standing. Nevertheless, you should remember that the impact factor is not a measure of an individual article, let alone an individual scientist. As long as an article has been cited, the citation will contribute to the journal's impact factor. This is regardless of whether the article's premise is true or false, or whether the cited paper was being credited or criticised. Perversely, a weak paper that is being refuted will augment the impact factor, as will a retracted article, because although the article may have been retracted, the citations of this article will still count. The impact factor has weathered many storms in the past but criticisms against it are increasing, as is interest in displacing it as a single metric used to measure an article's influence. Many would like the scientific community to assess research on its merits rather than on the basis of the journal in which it is published. With the advent of social media, an article can now be commented on in real time with Tweets, bookmarks and blogs. In future, these measures will complement the impact factor but they will probably not become an alternative. Despite its imperfections, the impact factor has been around for a long time. As yet, although many alternative metrics have since emerged, nothing better is available. Perhaps it is the scientific community's misuse of the impact factor that is the problem and not the impact factor itself? In this article, Pippa Smart, who is the guest editor for this series, writes about the ways to measure the impact of a journal and published articles. JYOTI SHAH Commissioning Editor

هذا الكتاب به سنستكشف معا كيفية تحسين حياتك لما تبقى منها وهي مهمة صعبة دون شك ومن أجل تحقيق ذلك وعليك أن تدرك أولا أن أي تغيير تجريه يجب أن يحدث من دون الكثير من الألم إنني أعلم أن هذا الأمر مناقض تماما لما تعتقده عن التغيير ولكن تحملني فإن كان التغيير اللازم لاستعادة السيطرة على وقتك صعب التحقيق لوجود الكثير جدا من القواعد والكثير جدا من الأمور التي عليك تذكرها أو فعلها فلن تظل ملتزما بها.

Purpose - The aim of this paper is to explore and empirically investigate the characteristics and contingencies of service delivery system design.Design methodology approach - Informed by the service strategy triad, a single embedded case study was designed to explore empirical data on four target markets, four service concepts, and on the design characteristics of the corresponding four service delivery systems. Data were collected in a market-leading organisation in the business-to-business sector within the power industry. The service delivery systems comprise processes that sell electricity contracts and processes that bill against those contracts.Findings - First, the findings indicate what design characteristics are contingent upon the degree of customisation of the service concept. The authors show how this contingency has implications for the extents of employee skills, employee discretion, task routineness, automation, and for front office (FO)-back office (BO) configurations. Second, the authors challenge the consensus that low customer-contact processes are designed for the purpose of efficiency. Third, the findings contradict Metters and Vargas who state that it is not possible to have different FO-BO configurations in a single organisation.Research limitations implications - While there are major interactions between the four service delivery systems supporting each individual service concept, this paper does not examine the trade-offs between the various possible designs of these service delivery systems.Practical implications - The paper emphasises the importance of considering the complexity of the service offering, the customer relationship strategy, and of taking a process-orientation to address service delivery system design.Originality value - This paper extends current understanding of service delivery system design characteristics and contingencies. The authors show how design characteristics are contingent on the service concept. Research propositions are formulated to emphasise this contingency. Additionally, we report findings which challenge existing FO-BO design theory.

The solution self-assembly of macromolecular amphiphiles offers an efficient, bottom-up strategy for producing well-defined nanocarriers, with applications ranging from drug delivery to nanoreactors. Typically, the generation of uniform nanocarrier architectures is controlled by processing methods that rely on cosolvent mixtures. These preparation strategies hinge on the assumption that macromolecular solution nanostructures are kinetically stable following transfer from an organic/aqueous cosolvent into aqueous solution. Herein we demonstrate that unequivocal step-change shifts in micelle populations occur over several weeks following transfer into a highly selective solvent. The unexpected micelle growth evolves through a distinct bimodal distribution separated by multiple fusion events and critically depends on solution agitation. Notably, these results underscore fundamental similarities between assembly processes in amphiphilic polymer, small molecule and protein systems. Moreover, the non-equilibrium micelle size increase can have a major impact on the assumed stability of solution assemblies, for which performance is dictated by nanocarrier size and structure. Micelles find applications in areas such as drug delivery systems, and as such, the kinetic stability of these structures is of high interest. Here the authors show that individual block copolymer micelles can continue to evolve after transfer to a selective solvent.

An ID-based authenticated two pass key agreement protocol which makes use of the Weil pairing is presented. The protocol is described and its properties are discussed, including the ability to add key confirmation.

Background A common and debilitating complication of low anterior resection for rectal cancer is low anterior resection syndrome (LARS). As a multifactorial entity, LARS is poorly understood and challenging to treat. Despite this, prevention strategies are commonly overlooked. Our aim was to review the pathophysiology of LARS and explore current evidence on the efficacy and feasibility of prophylactic techniques. Methods A literature review was performed between [1st January 2000 to 1st October 2023] for studies which investigated preventative interventions for LARS. Mechanisms by which LARS develop are described, followed by a review of prophylactic strategies to prevent LARS. Medline, Cochrane, and PubMed databases were searched, 189 articles screened, 8 duplicates removed and 18 studies reviewed. Results Colonic dysmotility, anal sphincter dysfunction and neorectal dysfunction all contribute to the development of LARS, with the complex mechanism of defecation interrupted by surgery. Transanal irrigation (TAI) and pelvic floor rehabilitation (PFR) have shown benefits in preventing LARS, but may be limited by patient compliance. Intraoperative nerve monitoring (IONM) and robotic-assisted surgery have shown some promise in surgically preventing LARS. Nerve stimulation and other novel strategies currently used in treatment of LARS have yet to be investigated in their roles prophylactically. Conclusions To date, there is a limited evidence base for all preventative strategies including IONM, RAS, PFP and TAI. These strategies are limited by either access (IONM, RAS and PFP) or acceptability (PFP and TAI), which are both key to the success of any intervention. The results of ongoing trials will serve to assess acceptability, while technological advancement may improve access to some of the aforementioned strategies.

We present new protocols for Asynchronous Verifiable Secret Sharing for Shamir (i.e., threshold t < n ) sharing of secrets. Our protocols: Use only “lightweight” cryptographic primitives, such as hash functions; Can share secrets over rings such as Z / ( p k ) as well as finite fields F q ; Provide optimal resilience , in the sense that they tolerate up to t < n / 3 corruptions, where n is the total number of parties; Are complete , in the sense that they guarantee that if any honest party receives their share then all honest parties receive their shares; Employ batching techniques, whereby a dealer shares many secrets in parallel and achieves an amortized communication complexity that is linear in n , at least on the “happy path”, where no party provably misbehaves.