Impressive Dimensions Research Articles

Sub-6GHz hand pump shaped microstrip antenna for 5G communication

The purpose of this paper is to explore the presented design of a hand-pump shaped microstrip antenna for sub-6 GHz 5G communication. This paper will first provide a brief overview of the antenna design and its capabilities. Meaning, overall impressive dimensions of 25.25 mm x 20.75 mm x 1.55 mm, with S11 being -16.82 dB at operating frequency of 5.16 GHz. Next, the paper will discuss the design of the antenna and how it can be optimized with a sub-6 GHz operating frequency, along with requirements. To reach the required specifications, inc. E- ≥ 5 GHz ≥ E-φ; S11 ≤-10, various geometrical parameters, among others, have been tested, resulting in two slots being added (slot a and slot b), in combination with various slits. Finally, an antenna is produced, and laboratory measurements are carried out for the validation of the results. Further discussing the potential benefits and drawbacks of using this antenna design for 5G applications.

Non-standardized room acoustic metrics

The first edition of ISO 3382 was adopted in 1997. It already listed T30, Early Decay Time, Clarity, Definition, Center time, Lateral fraction and IACC as relevant room acoustic parameters. They are still up to date, only supplemented by the division into two dimensions of the spatial impression and by the stage support. In the last decade, new research has been conducted on sound perception in concert halls and the results seem to confirm that loudness, reverberation, clarity (intelligibility) and localization are the most important. More recently, auditory-visual interaction, loudness decay and directional reverberation have been found to be factors that describe dimensions of the overall experience of music in a concert hall. This paper highlights the challenges associated with some of the standard parameters and the opportunities presented by newly developed metrics.

Will sensory impressions drive the intention to revisit? An empirical study in the rural tourism

ABSTRACT Despite eliciting interest from tourism scholars, sensory research in rural tourism remains under-explored. This study aimed to explore the impact of user-generated content on sensory impressions, reexamine the dimensions of sensory impressions, and uncover the influence mechanism of sensory impressions on revisit intention among rural tourists. Data collected using a self-administered questionnaire was analyzed using the partial least squares structural equation modeling technique. The findings reveal the significance of UGC in determining sensory impressions, which, in turn, influence revisit intention directly and indirectly through immersion and satisfaction. Results also confirm that hybrid sensory is a fundamental dimension of sensory impression.

Shifts in Facial Impression Structures Across Group Boundaries

Facial impressions have long been argued to be driven by two independent dimensions of trustworthiness and dominance. However, in an intergroup context, we reasoned that these dimensions may shift predictably and become more positively related for ingroup members, yet negatively related for outgroup members, due to dominance signaling outgroup threat and/or ingroup prosociality. In two studies, we examined how the two dimensions shift across minimal group boundaries for White targets. In Study 1, core dimensions of trustworthiness and dominance became intertwined with each other differently for ingroup and outgroup targets. In Study 2, stronger stereotypic beliefs that trustworthiness ≈ dominance for ingroup than outgroup mediated the shifts in facial impression dimensions. This work advances our understanding of facial impressions and intergroup bias by showing that the facial impression dimensions are not fixed but may shift across group boundaries and that such shifts occur above and beyond simple ingroup favoritism.

Effect of chemical disinfection on the dimensional stability of polyvinyl ether siloxane impression material: a systemic review and meta-analysis

Background and objectivesPolyvinyl ether siloxane (PVES) possesses ideal characteristics for making precise and accurate dental impressions. PVES dimensional stability owes to its better polymeric properties derived from its parent materials poly ethers and polyvinyl siloxanes. As recommended use of chemical disinfecting agents is getting more popular, there is a growing concern associated with the effect of disinfectants on PVES dimensional stability. This study was aimed to understand the PVES behavior when subjected to chemical disinfectants.Materials and methodologyThe data was collected from research studies retrieved from Google Scholar, Scopus, and PubMed using MeSH terms of keywords “vinyl polyether siloxane AND Disinfection” or (Vinyl polyether siloxane OR polyvinyl siloxane ether OR PVES) AND (disinfectant OR disinfection)” without any restriction to publication date. The PRISMA (Preferred Reporting Items for Systemic Review and Meta-Analysis) directions were observed during the data collection, screening of studies, and meta-analysis. The primary data were retrieved, and batch exported from databases using Harzing’s Publish or Perish software; primary analysis was performed in Microsoft Excel, while statistical analysis for effect size, two-tailed p-values, and heterogeneity among studies was performed using Meta Essentials. The effect size was calculated using Hedge’s g values at the 95% confidence level using the random-effects model. Heterogeneity among studies was measured using the Cochrane Q and I2.Results and conclusionDental impressions made from the PVES elastomeric impression materials showed no significant changes in dimensional stability. Immersion in the chemical disinfectant for 10 min was associated with clinically irrelevant changes in the dimensions of the PVES impressions. Disinfection with sodium hypochlorite was associated with clinically significant changes in dimensions, with a two-tailed p-value of 0.049. Disinfection with 2–2.5% glutaraldehyde solution was not associated with any significant dimensional variability.

Splenic cavernous hemangioma in a dog

Splenic haemangioma represents a pathology that, although benign, through the impressive dimensions it reaches and through the side effects it imprints on the organs in the abdominal cavity can present a real risk to the vital prognosis of the animal. The preferred diagnostic modality in these cases is excisional biopsy. This paper describes the examination of a case to obtain a definite diagnosis, the surgical intervention and the postoperative evolution.

1. Ways of Placing Megaliths in Space in European Neolithic

Abstract Monoliths of impressive dimensions, menhirs, dolmens and cromlechs are examples of the megalithic civilization which existed in the area of Afro-Eurasia, from Neolithic up to the Bronze Age included. And in the case of menhirs and dolmens, it is also about isolated presences, and about groups. Alignments are groups specific to menhirs: parallel catenations, equally distanced, of organized stones forming a true spacial composition, with the purpose of symbolizing solemn processions. The cromlech is a complex where many menhirs or/and dolmens were placed in concentric circles, here the spacial composition is even more obvious. The present material will refer also to the most complex and coherent megalithic ensemble in the world: Stonehenge Assembly.

Comparison of Dimensional Stability of Alginate Impressions by Spraying 0.5% Sodium Hypochlorite Against Kepok Banana Peel Extract (Musa paradisiaca Linn.)

Background: The process of impressions of hard and soft tissues in the oral cavity is a fairly routine activity in dentistry. Alginate is an irreversible elastic impression material that is often used. Alginate can be disinfected using soaking or spraying techniques. This disinfection solution itself has side effects that are quite serious for patient health. This study aimed to find out Comparison of the dimensional stability of alginate impressions by spraying 0.5% sodium hypochlorite against kepok banana peel extract (Musa paradisiaca Linn.).
 Methods: This study was experimental research. The research object used was dimension of alginate impressions which were grouped into control and treatment groups. Assessment of the projection value of the antero-posterior (AP) and cross arch (CA) lines was carried out with digital calipers. Data analysis was carried out with the help of SPSS version 25 in univariate and bivariate.
 Results: The results of this study showed that the mean value of the AP and CA lines in the kepok banana peel extract treatment group did not show a significant difference with the control treatment (sodium hypochlorite 0.5%), p-value> 0.05.
 Conclusion: Spraying kepok banana peel extract with various concentrations did not cause changes in the dimensions of the alginate impressions.

A Giant Left Common Iliac Artery Aneurysm with Endovascular Repair: A Case Report

Common iliac artery aneurysm (CIAA) is a very rare entity, but with potentially disastrous evolution, aneurysm rupture or distal embolization. A specific management, surgical or endovascular procedure, is required. We present a case with a huge distal left common iliac artery aneurysm, in which the diagnosis was made incidentally during a weekly ultrasound examination, in spite of impressive dimensions, 9 cm diameter. The patient was then examined by 128- Slices computed tomography and angio-coronarography. Despite the attractive anatomy for direct surgery with resection of the aneurysm and restoration of the iliac tract through the interposition of a tubular prosthesis, due to the previous pathology of the patient with necrotizing fasciitis in the left lower limb and abdominal wall, endovascular intervention was decided. Because, the big size of the left common iliac artery aneurysm, located distally, with tortuosity of the left common iliac artery as well external iliac artery (EIA), permeable left internal iliac artery (IIA), extensive intra-aneurysmal thrombosis, endovascular procedure was complex and particular. The peculiarities of the case and the complex endovascular technique, with the placement of a stent graft on the infrarenal abdominal aorta, extended on both common iliac arteries, embolization of the left internal iliac artery and extension of the left arm on the external iliac artery, are described in this presentation.

Students’ Perception of Self-Assessment in Assessing Writing Skill during Online Learning

Distance learning makes the assessment process in the classroom less effective, especially for assessing writing skills. Therefore, self-assessment is implemented to form independent and competent students in the field of writing. The results of initial observations showed that students had different perceptions regarding the application of self-assessment in assessing writing skills during online learning. This study aims to analyses the perceptions of 5th semester students majoring English Language Education regarding self-assessment in assessing writing skill during online learning. To achieve this objective, the researcher used a mixed method with questionnaire and interview as research instruments. The results of the questionnaire analysis showed that the average of each dimension was 45.38 for the memory dimension; 53.35 for the evaluation dimension, and 35.74 for the impression dimension. From the results of the analysis, it can be seen that students have positive perceptions on the memory and impression dimensions, and negative perceptions on the evaluation dimensions. Based on these results, it is concluded that self-assessment provides advantages and disadvantages for students in assessing writing skills during online learning.

Knowledge of wealth shapes social impressions.

Seven experiments conducted in India and the United States (N ∼7,000; 5 preregistered) examined the effects of wealth on warmth and competence, 2 fundamental dimensions of social impressions. Wealth causally influenced perceptions of a target's competence: high wealth increased perceived competence and low wealth decreased perceived competence (Experiments 1-3). Furthermore, both high and low wealth reduced perceived warmth compared with control conditions that provided no wealth-related information (Experiments 2 and 3). Attributing prosocial tendencies to the target in the form of charitable donations reversed wealth-induced reductions in warmth, while low levels of charitable donations lowered both perceived warmth and competence (Experiment 3). Reciprocally, information about the target's competence or warmth influenced how wealthy they were perceived to be (Experiment 4). Knowing the source of wealth (e.g., entrepreneurship, corporate fraud, inheritance) also affected perceptions of competence and warmth (Experiments 5 and 6). Moreover, participants expressed greater willingness to hire wealthier targets compared with poorer targets in hypothetical employment scenarios, a relationship mediated by perceived competence, suggesting that an individual's wealth may influence consequential assessments and decisions (Experiment 7). With rising economic inequality, it is crucial to understand how wealthy and poor individuals are perceived and the implications of these perceptions. The present experiments offer insight in this direction. (PsycInfo Database Record (c) 2022 APA, all rights reserved).

Measuring an employer brand: a study towards valid scale development (as a second-order factor of a structural model)

PurposeThe study aims to conceptualise, develop and validates a scale to measure an employer brand(ing) (EB) based on the opinion of existing and potential employees.Design/methodology/approachA total of 431 student-respondents from B-Schools across India were surveyed in a cross-sectional study using a 70-item scale generated through literature review and expert interviews. Through exploratory factor analysis, six EB dimensions were derived. These were further validated using confirmatory factor analysis on data of 120 employees of the power sector.FindingsA new 20-item EB scale- “EmBran” covers six dimensions of EB, namely, good human resource (HR) practices, business impression and work conditions, financial compensation, work-life balance, passive culture and standard HR policy. The paper posits EB as a second-order factor determined by six first-order factors.Practical implicationsThe EB scale can be used by talent acquisition teams to derive meaningful insights into designing a policy for hiring and attracting young talent. It, thus, makes a significant contribution towards talent management. The scale also provides researchers with a fresh conceptualisation of the concept of the EB.Originality/valueThis study is unique as it considers the opinions of both existing and potential employees. Additionally, dimensions of passive culture and business impression and working conditions, emerged in the study.

Using a ‘speedy’ unspiked K–Ar methodology to investigate age patterns in giant mafic dyke swarms

Abstract We present the results of a geochronological investigation that was conducted on mafic rocks (dolerites) that form two giant dyke swarms in NE Brazil, whose intrusion was correlated to the break-up of the West Gondwana supercontinent and the opening of the Atlantic Ocean. Despite their impressive dimensions, these swarms lack any geological information, which motivated us to develop a speedy, low-cost analytical protocol, modified from the Cassignol unspiked K–Ar technique, to define age patterns. The results were interpreted in light of basic statistical treatments and, although some limitations were mostly related to grain-size heterogeneities, they successfully matched other 40 K-based ages (conventional K–Ar and 40 Ar/ 39 Ar) reported in the literature and showed that the dyke swarms share two main age intervals of rock formation identified as the Early Cretaceous and Late Jurassic.

The interplay between gaze cueing and facial trait impressions.

The gaze cueing effect involves the rapid orientation of attention to follow the gaze direction of another person. Previous studies reported reciprocal influences between social variables and the gaze cueing effect, with modulation of gaze cueing by social features of face stimuli and modulation of the observer's social judgements from the validity of the gaze cues themselves. However, it remains unclear which social dimensions can affect-and be affected by-gaze cues. We used computer-averaged prototype face-like images with high and low levels of perceived trustworthiness and dominance to investigate the impact of these two fundamental social impression dimensions on the gaze cueing effect. Moreover, by varying the proportions of valid and invalid gaze cues across three experiments, we assessed whether gaze cueing influences observers' impressions of dominance and trustworthiness through incidental learning. Bayesian statistical analyses provided clear evidence that the gaze cueing effect was not modulated by facial social trait impressions (Experiments 1-3). However, there was uncertain evidence of incidental learning of social evaluations following the gaze cueing task. A decrease in perceived trustworthiness for non-cooperative low dominance faces (Experiment 2) and an increase in dominance ratings for faces whose gaze behaviour contradicted expectations (Experiment 3) appeared, but further research is needed to clarify these effects. Thus, this study confirms that attentional shifts triggered by gaze direction involve a robust and relatively automatic process, which could nonetheless influence social impressions depending on perceived traits and the gaze behaviour of faces providing the cues.

Long-term stability of the final slopes of the mining waste dumps from Oltenia

The waste dumps resulted from the lignite exploitation activities from Oltenia are constructions that reach, in most cases, impressive dimensions and store large volumes of sterile rocks. Usually, the dumps are arranged and ecologically restored, but between the moment of their release from technological tasks and the beginning of the arrangement works, periods of time, measured even in years, can pass. The calculations regarding the geometry of the waste dumps are performed in the design stage, taking into account the mechanical strength characteristics of the mixture of sterile material that forms them, so as to ensure a sufficient stability reserve during the construction period and when the projected storage capacity is achieved. If the arrangement and ecological restoration works do not start immediately after the depositing activity is stopped, the exposure of loose and disaggregated material to the influence of external factors (especially erosion and rainfall infiltration) can lead to landslides with disastrous consequences on natural and anthropogenic objectives located in the influence area. This paper analyzes the stability elements of waste dumps under normal operating conditions, the modification of the strength characteristics over time and the geometry required in the final phase so as to ensure their long-term stability.

An Intelligent and Robust Framework towards Anomaly Detection, Medical Diagnosis, and Shortest Path Problems Based on Interval-Valued T-Spherical Fuzzy Information

The recent emerging advancements in the domain of the fuzzy sets are the framework of the T-spherical fuzzy set (TSFS) and interval valued T-spherical fuzzy set (IVTSFS). Keeping in view the promising significance of the latest research trend in the fuzzy sets and the enabling impact of IVTSFS, we proposed a novel framework for decision assembly using interval valued TSFS based upon encompassing the four impressive dimensions of human judgement including favor, abstinence, disfavor, and refusal degree. Another remarkable contribution is the optimization of information modeling and prevention of information loss by redefining the concept of each membership in interval. Moreover, the proposed research made a worthy contribution work by demonstrating the effective utilization of the interval valued TSFS based framework in anomaly detection, medical diagnosis, and shortest path problem. The proposed work demonstrates the effective remedial measure for the anomaly detection problem based on several parameters using the aggregation operators of IVTSFS. Moreover, the interval valued T-spherical fuzzy relations and their composition are illustrated to investigate the medical diagnosis problem. Furthermore, the notion of interval valued T-spherical fuzzy graph is also presented and fundamental notions of graph theory are also demonstrated with the help of real world instances. In the context of interval valued T-spherical fuzzy graphs (IVTSFGs), a modified Dijkstra Algorithm (DA) is developed and applied to the shortest path problem. The in-depth quantitative assessment and comparative analysis revealed that the proposed notion outpaces contemporary progressive approaches.

DEVELOPMENT OF TECHNOLOGY FOR HIGH EFFECTIVE CONTINUOUS TREATMENT OF SEWAGE FROM PROCESSING ENTERPRISES

The paper considers and proposes a concept of a technology scheme for highly effective mechanical wastewater treatment at processing enterprises of the agro-industrial complex, in order to ensure highly efficient continuous mechanical cleaning, with low energy consumption and equipment ergonomics. Various points of view on existing treatment technologies, segment problems, government regulations and requirements are considered. On the basis of them, conceptual schemes for the development of equipment are proposed and a technological scheme of the installation is proposed. The presented equipment layout diagrams provide an opportunity not only to clean the agro-industrial complex waste uninterruptedly and with high quality, but also make it possible to prepare the components to be removed for their further use or sale. The actual problem of the agro-industrial complex processing enterprises is high-quality, efficient and affordable wastewater treatment. The existing equipment is unable to meet the needs of small and medium-sized enterprises due to its high cost and impressive dimensions. In addition, this equipment does not provide high-quality wastewater treatment even to the level necessary for their further discharge into the sewer system. First of all, this is due to the obsolescence of existing methods and approaches, in particular in the technological aspect. The schematic diagrams described in the article, and the proposed technological scheme for waste management, have not yet been used at enterprises, since they require in-depth analysis and development of design solutions. On its basis, it will be possible to work out possible technical solutions for the further manufacture of equipment. That is why the question of the development of a modern ergonomic complex of high-tech equipment for highly efficient and continuous wastewater treatment has arisen. The solution to this problem is primarily possible to provide on the basis of an integrated approach to improving the cleaning technology.

Geometric morphometric analysis of Japanese female facial shape in relation to psychological impression space

Facial appearance has essential consequences in various social interactions. Previous studies have shown that although people can perceive a variety of impressions from a face, these impressions may form from a relatively small number of core dimensions in the psychological impression space (e.g., valence and dominance). However, few studies have thus far examined which facial shape features contribute to perceptions of the core trait impression dimensions for Asian female faces. This study aimed to identify the commonalities between various facial impressions of Japanese female faces and determine the facial shape components associated with such impressions by applying geometric morphometric (GMM) analysis. In Experiment 1 (Modeling study), Japanese female faces were evaluated in terms of 18 trait adjectives that are frequently used to describe facial appearance in daily life. We found that Japanese female facial appearance is indeed evaluated mainly on the valence and dominance dimensions. In Experiment 2 (Validation study), we confirmed that all the trait impressions were quantitatively manipulated by transforming the facial shape features associated with valence and dominance. Our results provide evidence that various facial impressions derived from these two underlying dimensions can be quantitatively manipulated by transforming facial shape using the GMM techniques.

Customer experience in the B2B area: The impact of age-related impressions

Services are dyadic experiences and many of these experiences require personal relationships for service provision. The co-acting parties' early impressions shape their unique expectations regarding, for example, appearance, behavior, and age. In a business-to-business (B2B) context, for example, younger employees might create a favorable impression in design-related tasks, while older employees might create a favorable impression in engineering tasks. The business partner subsequently contemplates the impression made by the individual's age (hereafter referred to as age impression) and ascribes certain competences to the individual.This paper emphasizes the role of the others' age impressions in a working context. More specifically, a qualitative study's results highlight the impact of age impressions on service expectations and perceptions. The results identify several dimensions of age impressions that allow for adapting service personnel to a B2B context. This paper fills a void in the age-related marketing literature because it focuses on the others' age impression rather than the individual's perception. The paper also contributes to recent customer experience (CX) literature, as it emphasizes the context factors' role in the service encounter. Furthermore, this paper is one of the rare CX studies in a B2B context and enriches research in the CX's adaptability in such contexts.

Authoress of church songs in Romanian monachism (19th-20th centuries). The stylistic, semantic and hermeneutical analysis the Religious Service of the Mother's of God Omophor, composed by the nun Epiharia Moisescu

"Godliness to the Mother of God has always had impressive dimensions. She is present in personal prayers, in the liturgical space of the Church, in the works of the Holy Fathers, in iconography, but the most important place in which we find it, is the heart of every faithful. In her heart she carried it for years, all her life, the nun Epiharia Moisescu. With all the knowledge gained from learning psaltic music, most of the works created were dedicated to the Mother of God: Religious Service of the Omophor, the Grivance and the Religious Service of Death of the Mother of God. The present work refers only to one of these works: Religious Service of the Mother's of God Omophor analyzed from a stylistic, semantic and hermeneutic point of view. The whole analysis puts it at the service of highlighting the Romanian school of psaltic music that developed and perfected, revealing the love of God interwoven with the love for music of those who later became personalities of the history of the Romanian psaltic music"