Towards Creating a Model of IoT to be used in Library Activities for Saudi Arabia\u27s Taibah University

The library must create a replacement organisation system in instruction to swap the existing system with the new one. There are several details why library operates need to adopt a new scheme, including the following: I have lost a lot of info on library books. The lack of familiarity with the literature Difficulty deciphering the fine print of library operations because of a sluggish system Difficulty in maintaining current information. Apart from orientation, the user interfaces are pleasant, and retraining was required. The researcher suggests that this approach be used on an ongoing basis to ensure the continued provision of library services. Other management responsibilities include serials and magazines, as well as reservations book, e-mail notice, and automated reminder, as well as the use of bar codes, scanners, and labels, as well as the custom of regularity identification tags to reduce book theft. Additionally, it is suggested that the library system engage in online surfing to enable users to access books and courses through the internet. The proposed research project would contribute to the development of a model IoT application for library operations at TIBA University in Saudi Arabia. The new system will manage and regulate all library information, resolving the aforementioned issues while also providing numerous advantages to staff and students

Comparative evidence of different surgical techniques for the management of vertical alveolar ridge defects in terms of complications and efficacy: A systematic review and network meta-analysis

Aim: To systematically appraise the available evidence on vertical ridge augmentation (VRA) techniques and estimate a treatment-based ranking on the incidence of complications as well as their clinical effectiveness. // Materials and Methods: Searches were conducted in six databases to identify randomized clinical trials comparing VRA techniques up to November 2022. The incidence of complications (primary) and of early, major, surgical and intra-operative complications, vertical bone gain (VBG), marginal bone loss, need for additional grafting, implant success/survival, and patient-reported outcome measures (secondary) were chosen as outcomes. Direct and indirect effects and treatment ranking were estimated using Bayesian pair-wise and network meta-analysis (NMA) models. // Results: Thirty-two trials (761 participants and 943 defects) were included. Five NMA models involving nine treatment groups were created: onlay, inlay, dense-polytetrafluoroethylene, expanded-polytetrafluoroethylene, titanium, resorbable membranes, distraction osteogenesis, tissue expansion and short implants. Compared with short implants, statistically significant higher odds ratios of healing complications were confirmed for all groups except those with resorbable membranes (odds ratio 5.4, 95% credible interval 0.92–29.14). The latter group, however, ranked last in clinical VBG. // Conclusions: VRA techniques achieving greater VBG are also associated with higher incidence of healing complications. Guided bone regeneration techniques using non-resorbable membranes yield the most favourable results in relation to VBG and complications

Saudisation Rhetoric and Realities: Barriers to Effective Private sector participation in public policy regulatory framework

This thesis is concerned with the method and process of Saudisation policy in the Kingdom of Saudi Arabia. The thesis examined the extent to which the Saudusation policy is regarded as a myth or reality and the factors responsible for this position. The study examined barriers to effective private sector participation in public policy regulatory framework and how modernisation of Saudi Arabia, has created a dependency on foreign workforce, due to scarce local high skilled workers. The research was based upon three case study conducted among the Ministry of Labour, The Chambers of Commerce and the Private Sector. It addresses the issue of non-participation of the Private Sector in the Saudisation Policy. The study addresses four key objectives. These were: to review the success/failure of the Saudisation; to determine the likely constraints on the private sector’s participation in the formulation of the Saudisation labour policy; to examine the barrier impinging on Saudisation implementation in the private sector; to review the extent of stakeholders’ involvement in the enactment and implementation of the Saudisation policy; and to determine the constraints on the private sector’s participation in formatting the Saudisation policy. The case study research was conducted in the selected agencies using grounded theory approach. In each case study, questions were asked to reveal why the Private sector was not allowed to participate and how participation can be facilitated. Each case respondent was thoroughly examined through in-depth interviews and documentary analysis. The two-research approach helped in identifying the barriers to participation of the private sector in the Saudisation policy. Overall, the study not only reveals that several barriers exist to Privates sector participation but also that these barriers can be overcome. Through its findings, this research concludes that the government should enhance the involvement of the private sector in the process of making Saudisation policies and key impediments. Given the lack of attention paid to Saudisation impediments, identification of barriers implies that the conceptual framework of this research can help to show that both the ‘rulers’ and ‘ruled’ can collaborate to achieve the desired outcomes. The research findings and recommendations are of direct practical relevance for making the private sector more active in the process of Saudisation and also ensuring that implementation of such policies has benefits for all parts. Through its findings, this research concludes that the government should enhance the involvement of the private sector in the process of making Saudisation policies and key impediments. This research is of important value because it remains a source of empirical study on the subject - Workforce Localisation Policies in Private Sector Enterprises: Barriers to Effective Implementation in the Kingdom of Saudi Arabia. This area currently has a dearth of research led study. There has been little empirical study on this important economic issue. This study will provide and further theoretical and empirical data that support debate on the subject matter. Furthermore, the study will serve as a framework for management and policy makers in the Kingdom of Saudi Arabia. Whilst providing guide to management and policy makers, the study will be informative to the private sector organisations

Fundamentals of electro- and thermochemistry in the anode of solid-oxide fuel cells with hydrocarbon and syngas fuels

Abstract High fuel flexibility of solid-oxide fuel cells (SOFCs) affords the possibility to use relatively cheap, safe, and readily available hydrocarbon (e.g., CH₄) or coal syngas (i.e., CO-H₂ mixtures) fuels. Utilization of such fuels would greatly lower fuel cost and increase the feasibility of SOFC commercialization, especially for near-term adoption in anticipation of the long-awaited so-called “hydrogen economy”. Current SOFC technology has shown good performance with a wide range of hydrocarbon and syngas fuels, but there are still significant challenges for practical application. In this paper, the basic operating principles, state-of-the-art performance benchmarks, and SOFC-relevant materials are summarized. More in-depth reviews on those topics can be found in Kee and co-workers [Combust Sci and Tech 2008; 180:1207–44 and Proc Combust Inst 2005; 30:2379–404] and McIntosh and Gorte [Chem Rev 2004; 104:4845–65]. The focus of this review is on the fundamentals and development of detailed electro- and thermal (or simply, electrothermal) chemistry within the SOFC anode, including electrochemical oxidation mechanisms for H₂, CO, CH₄, and carbon, as well as the effects of carbon deposition and sulfur poisoning. The interdependence of heterogeneous chemistry, charge-transfer processes, and transport are discussed in the context of SOFC membrane-electrode assembly modeling

Resistive‐switching in yttria‐stabilised hafnia ceramics

Yttria-stabilized hafnia ceramics are high-temperature oxide ion conductors that lose a small amount of oxygen, both at high temperatures and on the application of a small dc bias. At zero applied bias, a small amount of p-type conductivity is present. This increases with low bias and is attributed to reactions initiated at the positive electrode/ceramic interface. With a further increase in bias, n-type conductivity is initiated at the negative electrode/ceramic interface. After a short time-lapse, the overall conductivity increases rapidly by 1.5–3 orders of magnitude and is reversible, with hysteresis, on subsequent removal of the bias. Switching has been observed over the range 457–531°C and is sensitive to both temperature and oxygen partial pressure in the surrounding atmosphere. This is the first example of low field, resistive switching in bulk hafnia ceramics, in contrast to most examples of resistive switching which are observed in nanometre-thick devices using similarly applied voltages

Single-carrier frequency-domain equalization with hybrid decision feedback equalizer for Hammerstein channels containing nonlinear transmit amplifier

We propose a nonlinear hybrid decision feedback equalizer (NHDFE) for single-carrier (SC) block transmission systems with nonlinear transmit high power amplifier (HPA), which significantly outperforms our previous nonlinear SC frequency-domain equalization (NFDE) design. To obtain the coefficients of the channel impulse response (CIR) as well as to estimate the nonlinear mapping and the inverse nonlinear mapping of the HPA, we adopt a complex-valued (CV) B-spline neural network approach. Specifically, we use a CV B-spline neural network to model the nonlinear HPA, and we develop an efficient alternating least squares scheme for estimating the parameters of the Hammerstein channel, including both the CIR coefficients and the parameters of the CV B-spline model. We also adopt another CV B-spline neural network to model the inversion of the nonlinear HPA, and the parameters of this inverting B-spline model can be estimated using the least squares algorithm based on the pseudo training data obtained as a natural byproduct of the Hammerstein channel identification. The effectiveness of our NHDFE design is demonstrated in a simulation study, which shows that the NHDFE achieves a signal-to-noise ratio gain of 4dB over the NFDE at the bit error rate level of 10−4

Forensic DNA Analysis of mixed mosquito blood meals: STR profiling for human identification

Mosquito vectors captured at a crime scene are forensically valuable since they feed on human blood, and hence, human DNA can be recovered to help identify the victim and/or the suspect. This study investigated the validity of obtaining the human short tandem repeats (STRs) profile from mixed blood meals of the mosquito, Culex pipiens L. (Diptera, Culicidae). Thus, mosquitoes were membrane-feed on blood from six different sources: a human male, a human female, mixed human male-female blood, mixed human male-mouse blood, mixed human female-mouse blood, and mixed human male-female-mouse blood. DNA was extracted from mosquito blood meals at 2 h intervals up to 72 h post-feeding to amplify 24 human STRs. Data showed that full DNA profiles could be obtained for up to 12 h post-feeding, regardless of the type of blood meal. Complete and partial DNA profiles were obtained up to 24 h and 36 h post-feeding, respectively. The frequencies of STR loci decreased over time after feeding on mixed blood until they became weakly detectable at 48 h post-feeding. This may indicate that a blood meal of human blood mixed with animal blood would contribute to maximizing DNA degradation and thus affects STR identification beyond 36 h post-feeding. These results confirm the feasibility of human DNA identification from mosquito blood meals, even if it is mixed with other types of non-human blood, for up to 36 h post-feeding. Therefore, blood-fed mosquitoes found at the crime scene are forensically valuable, as it is possible to obtain intact genetic profiles from their blood meals to identify a victim, a potential offender, and/or exclude a suspect

Plasma accelerator driven coherent spontaneous emission

Plasma accelerators [1] are a potentially important source of high energy, low emittance electron beams with high peak currents and generated within a relatively short distance. While novel plasma photocathodes [2] may offer improvement to the normalised emittance and brightness of electron beams compared to Radio Frequency-driven accelerators, a challenge is the energy spread and chirp of the beams, which can make FEL operation impossible. In this paper it is shown that such an energy-chirped beam, with a dynamically evolving current profile due to ballistic bunching, can generate significant coherent radiation output via the process of Coherent Spontaneous Emission (CSE) [3]. While this CSE is seen to cause some FEL-induced electron bunching at the radiation wavelength, the dynamic evolution of the energy chirped pulse dampens out any high-gain FEL interaction

The crystal structure of 2-(3-(4-bromophenyl)-5-(4-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)-8H-indeno[1,2-d]thiazole, C25H17BrFN3S

C25H17BrFN3S, triclinic, P1̄ (no. 2), a = 11.2926(6) Å, b = 11.5832(4) Å, c = 16.9974(9) Å, α = 109.211(4)°, β = 90.211(4)°, γ = 95.290(4))°, V = 2089.21(18) Å3, Z = 4, R gt(F) = 0.0580, wR ref(F 2) = 0.1797, T = 296 K