Indoor environment propagation review

A survey of indoor propagation characteristics is presented, including different models for path loss, shadowing and fast fading mechanisms, different channel parameters including signal strength, power delay, coherence bandwidth, Doppler spread and angle of arrival. The concepts of MIMO channels are also covered. The study also explores many types of deterministic channel modelling, such as Finite Difference Time Domain, Finite Integration Method, Ray tracing and the Dominant path model. Electromagnetic properties of building materials, including frequency dependence, are also investigated and several models for propagation through buildings are reviewed

How Can We Identify Hijacked Journals?

By developing research and academic centers, the number of performed research articles has also increased. On the other hand, publishing the results of these articles in scientific journals shall also grow. In the meantime, researchers are trying to publish the findings of their research in journals which have been approved by one or more International indices so that such findings can be seen. In order to enhance the academic standards of Universities, proper journal choice will be of interest to researchers, especially those that are indexed in websites such as Thomson Reuters. However, certain forgery frauds researchers by launching fake Web sites that have been named by academic journal titles. In this paper, we introduce an approach to identify this type of journals that will be applicable by researchers in various academic disciplines

Novel salted anionic-cationic polymethacrylate polymer blends for sustained release of acidic and basic drugs

Background: Since a unique matrix tablet formulation that independently controls the release of various drug types is in a great demand, the objective of this research was to develop a sustained release matrix tablet as a universal dosage form using a binary mixture of the salt forms of Eudragit polymers rather than their interpolyelectrolyte complexes. Methods: Tablets were prepared by wet granulation and compressed at different compression forces, depending on drug type. Dissolution tests were conducted using USP XXII rotating paddle apparatus at 50 rpm at 37°C in consecutive pH stages. Results: Tablets containing Ibuprofen (IB) as a model acidic drug and Metronidazole (MD) as a model basic drug showed controlled/sustained release behavior. For IB tablets containing 80% Ibuprofen and 5% (w/w) polymeric combination; the time for 50% of the drug release was about 24 hours compared to 8.5 hours for plain tablets containing 80% IB. In case of MD, the drug release extended to about 7 hours for tablets containing 80% MD and 5% (w/w) polymeric combination, compared to about 1 hour for plain tablets containing 80% MD. In terms of extending the release of medications, the dissolution profiles of the tablets containing polymeric salts forms were found to be statistically superior to tablets prepared by direct compression of the polymers in their powdered base forms, and superior to tablets containing the same polymers granulated using isopropyl alcohol. Conclusion: The findings indicated the significance of combining the polymers in their salt forms in controlling the release of various drug types from matrices

Lost in Translation: Shop Signs in Jordan

Shop signs, in the Jordanian public commercial environment, have invariably been studied from linguistic, sociolinguistic, and pragmatic perspectives, but they have been utterly ignored from a translational point of view. This study, the first of its kind, investigates various problems and inadequacies pertinent to the subject under discussion. Shop signs are selected here from a number of heterogeneous cities, and the translation errors therein, committed by communicators, were empirically analyzed and categorized. Language and culture are, of necessity, inextricably intertwined, and this nexus is particularly apparent in the world of local commercial shop signs, and thus it has been tackled for its direct relevance to the translation of these signs. This investigation, therefore, highlights the linguistic (e.g., word-order, wrong lexical choice, and reductionist strategies), and extralinguistic (i.e., sociocultural and promotional) factors that have turned out to lead to translation inappropriateness and unparallelisms, information skewing, and, consequently, serious semantic-conceptual problems in the produced TLTs. This study may, in a way, provide educated insight into the trendiest translation practices in this field, and the way shop signs are most often verbalized, mishandled, and mistranslated.Les panneaux de magasins, nombreux dans le contexte commercial public en Jordanie, ont été largement étudiés d’un point de vue linguistique, sociolinguistique et pragmatique, mais jamais ils n’ont été abordés sur le plan de leur traduction. Cette étude, la première de son genre, aborde les problèmes et insuffisances liés au sujet en question. Les panneaux commerciaux ont été sélectionnés à partir d’un certain nombre de paramètres hétérogènes. Quant aux erreurs de traduction commises par les interlocuteurs, elles ont été empiriquement analysées et classées par catégorie. Étant donné que la langue et la culture sont inextricablement liées, le lien entre elles s’avère encore plus évident lorsqu’il s’agit des panneaux commerciaux locaux. Le sujet a été ainsi abordé en raison de son rapport direct avec la traduction de ces signes. Cette recherche met donc l’accent sur les facteurs à la fois linguistiques (e.g. l’ordre des mots, les choix lexicaux, les stratégies réductionnistes) et extralinguistiques (e.g. facteurs socioculturels et promotionnels) qui ont été à l’origine de l’inexactitude et l’inadéquation de la traduction, d’une part, et du détournement de l’information, d’autre part. Ce qui mène, en conséquence, à de graves problèmes sémantico-conceptuels sur le plan des traductions en question. Cette étude pourrait, d’une certaine manière, fournir un aperçu instruit des différentes tendances de traduction pratiquées dans le domaine ainsi que de la manière dont les panneaux commerciaux sont souvent exprimés, malmenés et, notamment, mal traduits

Design of a multi-sensor platform for integrating extracellular acidification rate with multi-metabolite flux measurement for small biological samples

2019 Spring.Includes bibliographical references.To view the abstract, please see the full text of the document

Beyond the culture effect on credibility perception on microblogs

We investigated the credibility perception of tweet readers from the USA and by readers from eight Arabic countries; our aim was to understand if credibility was affected by country and/or by culture. Results from a crowd-sourcing experiment, showed a wide variety of factors affected credibility perception, including a tweet author's gender, profile image, username style, location, and social network overlap with the reader. We found that culture determines readers' credibility perception, but country has no effect. We discuss the implications of our findings for user interface design and social media systems

Biophilic design in homes: Integrating nature for comfort & well-being

Residential interior design professionals have increasingly recognized biophilic design because it lets them enhance human wellness through nature-inspired elements. A research project investigates how biophilic design principles influence urban residential environments through their effects on mental as well as physical health outcomes of occupants. The main purpose of this investigation evaluates how different biophilic features particularly natural light exposure and indoor plant integration with organic geometries and organic materials influence overall wellness and home comfort. This research explores data through recent studies and case study analysis to achieve its findings. Biophilic design features incorporated into residential units lead to higher occupant satisfaction levels which strengthen by 35% together with better mental well-being levels that increase by 28%. Building indoor vegetation helps people manage stress better by 22 percent and natural light streams improve workplace productivity by 30 percent. The implementation of organic forms together with natural materials results in a 40% increase of perceived comfort for users. Biophilic design positively affects human well-being to such a high extent that it needs wider implementation in residential interior design according to research findings

Different genes interact with particulate matter and tobacco smoke exposure in affecting lung function decline in the general population

BACKGROUND: Oxidative stress related genes modify the effects of ambient air pollution or tobacco smoking on lung function decline. The impact of interactions might be substantial, but previous studies mostly focused on main effects of single genes. OBJECTIVES: We studied the interaction of both exposures with a broad set of oxidative-stress related candidate genes and pathways on lung function decline and contrasted interactions between exposures. METHODS: For 12679 single nucleotide polymorphisms (SNPs), change in forced expiratory volume in one second (FEV(1)), FEV(1) over forced vital capacity (FEV(1)/FVC), and mean forced expiratory flow between 25 and 75% of the FVC (FEF(25-75)) was regressed on interval exposure to particulate matter >10 microm in diameter (PM10) or packyears smoked (a), additive SNP effects (b), and interaction terms between (a) and (b) in 669 adults with GWAS data. Interaction p-values for 152 genes and 14 pathways were calculated by the adaptive rank truncation product (ARTP) method, and compared between exposures. Interaction effect sizes were contrasted for the strongest SNPs of nominally significant genes (p(interaction)>0.05). Replication was attempted for SNPs with MAF<10% in 3320 SAPALDIA participants without GWAS. RESULTS: On the SNP-level, rs2035268 in gene SNCA accelerated FEV(1)/FVC decline by 3.8% (p(interaction) = 2.5x10(-6)), and rs12190800 in PARK2 attenuated FEV1 decline by 95.1 ml p(interaction) = 9.7x10(-8)) over 11 years, while interacting with PM10. Genes and pathways nominally interacting with PM10 and packyears exposure differed substantially. Gene CRISP2 presented a significant interaction with PM10 (p(interaction) = 3.0x10(-4)) on FEV(1)/FVC decline. Pathway interactions were weak. Replications for the strongest SNPs in PARK2 and CRISP2 were not successful. CONCLUSIONS: Consistent with a stratified response to increasing oxidative stress, different genes and pathways potentially mediate PM10 and tobac smoke effects on lung function decline. Ignoring environmental exposures would miss these patterns, but achieving sufficient sample size and comparability across study samples is challengin

Prevalence of Psychological Stress and Associated Risk Factors Among Hypertensive Patients in Jordan: Cross-Sectional Study

Hypertension is considered one of the chronic illnesses that affect many individuals across the globe. It has been evident that stress is associated with hypertension. The current study aimed to assess the prevalence of stress among hypertensive men as well as determine the risk factors causing psychological stress in Jordan. This study used a descriptive correlation cross-sectional design. The researchers recruited 200 patients with hypertension from six hospitals located in the central part of Jordan. Data was collected from the participants through self report questionnaire. The study results revealed that the total scores of perceived stress among the study participants ranged from 4 to 42 (M= 18.17; SD= 8.18). Almost half of the study participants (40%) perceived normal level of stress (0 ≤ total stress subscale ≤ 14). The findings showed that gender (t = -1.99, B = -2.90, p = 0.048), educational Level (t = -2.39, B = -2.39, p = 0.02), health Status (t = 3.08, B = 1.67, p = 0.002), and sleep (t =2.45, B = 3.22, p = 0.02) were the significant predictors of stress among Jordanian patients with hypertension. This study contributed to the existing body of knowledge and can be considered as a baseline for future researcher in the area of stress. The health care providers in various medical departments should make effort to provide optimal care for patients with hypertension that directed toward decreasing the level of stress