Descriptive Definition Research Articles

MATEMÁTICA ACADÊMICA E MATEMÁTICA ESCOLAR NO ÂMBITO DO CURSO DE GRADUAÇÃO EM LICENCIATURA EM MATEMÁTICA

This article analyzes the relationship between academic mathematics and school mathematics in the context of undergraduate mathematics courses. Definitions of both are provided, based on authors who argue on the subject. The importance of these conceptions in the training of mathematics teachers and mathematicians is also highlighted. The authors researched and their writings form the entire theoretical basis of the work, which consists of a bibliographical survey, so that it is possible to observe that, although there is a fundamental relationship between them, there is also a perceptible difference. In the mathematics degree course, it is possible to verify the existence of subjects that contemplate each of the two perspectives mentioned. In view of this, the aim of this paper is to establish an analysis of the contributions that Academic Mathematics and School Mathematics make to teacher training and performance, which facilitate student learning, with more descriptive definitions and the use of methodologies aimed at communicating mathematical knowledge in an objective and practical way.

Is depression a vague concept in psychiatry?

In this paper I investigate whether "depression" is a vague concept in psychiatry and the consequence of this for philosophers who would like to contribute to the elaboration of an objective definition of it. Assuming that this concept aims at referring to a mental disorder, I show that the current definition of "depression" is controverted: we lack a unified scientific model of it, so a consensual objective definition of it. Actually there is its clinical definition in the nosology but this definition consisting in a list of criteria is accused of being unsufficient to draw a sharp limit between normal and pathological cases. Hence vague boundaries of the extension of the concept as referring to a mental disorder. Moreover its clinical criteria, as descriptive and non distinctive, need to be interpreted by clinicians in a way that remains implicit and contextually variable, and they can apply to completely different clinical pictures. I interpret this as a variability of the descriptive definition of "depression", so that its conditions of use depend on the context: it may apply to two cases that have nothing in common except similarities. Applying the famous wittgensteinien characterization of the concept of "game" to "depression", I argue that this vagueness can be interpreted as showing that "depression" works as cluster of concepts whose instances only share "family resemblances". From this philosophical interpretation I draw the conclusion that the "vagueness problem" of depression at a theoretical level does not make the use of this concept problematic, since this in practice use is always related to a context conferring a specific meaning to the concept. I conclude that philosophers should not look in the clinical sciences for an objective definition of depression as a list of necessary and sufficient conditions pointing at its essence: they should rather either describe the family resemblances between the different versions of this concept, or try to stipulate a definition providing it sharp boundaries. A stipulative definition would be motivated by a pragmatic purpose while not delegitimizing other uses that could be made of the concept. Such a purpose could be to target only medically relevant conditions; actually such conditions do not necessarily have to be conceived of as conditions where there is a disease understood as pathological process that we could objectively define, but they can be seen as conditions that we have medical means to take care of with more benefits than disadvantages.

Same same but Different - Definition and Explicit Notation of an Orientation in MTEX vs. Quasi-Standard

Even though the descriptive definition of orientation is the same in both settings, the explicitnotation of a crystallographic orientation as (3 3) matrix in terms of Euler angles featuredby the popular MATLAB toolbox MTEX differs by an inversion from the quasi-standard notation datedback to the early days of quantitative texture analysis championed by H.-J. Bunge. The origin of thisdiscrepancy is revealed by an enlightening view provided in algebraic terms of a change of basis.Understanding the effect of inversion is instrumental to do proper computations with crystallographicorientations and rotations, e.g. when multiplying with elements of a crystallographic symmetry group,and to compare results of texture analyses accomplished in different settings.

Dynamic simulation of cargo transport along cislunar suspension tether by single node coupling model

A cislunar suspension tether (CST) is a kind of ultra-long tether anchored to the lunar surface and extends to the vicinity of the Earth, looks like hanging to the Moon, could be used as cislunar pathway for interstellar freightage easier. Its feasibility on material mechanics and dynamics has been verified by the authors. This paper focuses on the process of the cargo transport along the CST. A single coupling model is established, which couples the cargo with one single node of the discrete CST model. Merely the interactive force between the coupled node and cargo is considered, with a proper definition description of the cargo's velocity along the CST. The description defines the direction of the cargo's velocity to the next one node on the CST all the time. The dynamic equations of the whole system are established based on afore stipulations. Several examples will be simulated and presented, their results will prove the effectiveness of the single coupling model, while, reflect some interesting phenomena of the CST's work. This paper also explains the advantage of the model by contrasting to some other models with multi nodes actions to the cargo.

IPhyDSDB: Phytoplasma Disease and Symptom Database.

Phytoplasmas are small, intracellular bacteria that infect a vast range of plant species, causing significant economic losses and impacting agriculture and farmers' livelihoods. Early and rapid diagnosis of phytoplasma infections is crucial for preventing the spread of these diseases, particularly through early symptom recognition in the field by farmers and growers. A symptom database for phytoplasma infections can assist in recognizing the symptoms and enhance early detection and management. In this study, nearly 35,000 phytoplasma sequence entries were retrieved from the NCBI nucleotide database using the keyword "phytoplasma" and information on phytoplasma disease-associated plant hosts and symptoms was gathered. A total of 945 plant species were identified to be associated with phytoplasma infections. Subsequently, links to symptomatic images of these known susceptible plant species were manually curated, and the Phytoplasma Disease Symptom Database (iPhyDSDB) was established and implemented on a web-based interface using the MySQL Server and PHP programming language. One of the key features of iPhyDSDB is the curated collection of links to symptomatic images representing various phytoplasma-infected plant species, allowing users to easily access the original source of the collected images and detailed disease information. Furthermore, images and descriptive definitions of typical symptoms induced by phytoplasmas were included in iPhyDSDB. The newly developed database and web interface, equipped with advanced search functionality, will help farmers, growers, researchers, and educators to efficiently query the database based on specific categories such as plant host and symptom type. This resource will aid the users in comparing, identifying, and diagnosing phytoplasma-related diseases, enhancing the understanding and management of these infections.

Punishment Moralism

AbstractIn this paper, I try to reconcile the vulgar (normative) definition of punishment with the positivistic (purely descriptive) definition that separates the ethics of punishment from its definition—punishment positivism. I will argue that although the vulgar definition has critical issues, this does not mean that we should stop using normative concepts in the definition of punishment. I will attempt this reconciliation by considering one of the prime arguments in favour of punishment positivism—namely, definitional stop—and show why it doesn't work. I will proceed by presenting a functional argument in favour of what I call punishment moralism: the idea that punishment should be considered as a response to perceived wrongdoing. This definition, while using normative concepts, still remains descriptive. In this way, I hope to be able to solve the problem of both views by combining their insights.

On the Moral Wrongness of a Male-only Ban on Leaving One’s Homeland

The aim of this paper is to examine whether it is morally wrong to ban only male citizens from leaving a country in wartime, and if it is, why it is the case. Following Russia’s invasion of Ukraine, President Volodymyr Zelensky declared martial law and ordered general mobilization, at the same time prohibiting male citizens aged 18 to 60 from crossing the border. The justifiability of the ban is in dispute, and opponents have made a case in both legal and moral dimensions. In the moral dimension, there are arguments based on consequentialism, individual freedom, and fairness or non-discrimination. In this paper, I focus on the third argument and argue that the ban unfairly and morally wrongfully discriminates against male Ukraine citizens on the basis of their gender. First, I define discrimination and apply it to our case. Second, moving from the descriptive definition of discrimination to its moral wrongness, I argue that the male-only ban is unfair and morally unjustified. Third, I argue that the ban can also be deemed morally wrong from one of the prominent views in the field of the ethics of discrimination, namely the deliberative freedom view.

Actinic keratosis: Current challenges and unanswered questions.

Actinic keratoses (AK) are common skin lesions associated with chronic exposure to sun. They are believed to be precursors of malignancy as they potentially may progress to invasive squamous cell carcinomas. The goal of current therapies is to reduce the number of AK and to prevent future cancer development. This review aims at providing an overview of the hallmarks of AK and skin field cancerization. We discuss epidemiology trends, risk factors and the state of the art and evidence of the current treatments. We review key figures of AK prevalence from different countries with regard to skin cancer risk and the associated economic burden of AK. We discuss the mutational status in AK lesions and the difficulties encountered by clinicians in evaluating AK visible and invisible lesions, referring to the concept of field cancerization. Based on a systematic literature review, we further evaluate the available treatment options. The presence of subclinical skin alterations in the periphery of visible AK lesions has gained a particular attention as those non-visible lesions are known to contain the same genetic changes as those found in the AK lesions themselves, prompting the concept of 'field cancerization'. Therefore, AK treatment guidelines now recognize the importance of treating the field in patients with AK. A recent systematic literature review and network meta-analysis showed that 5-FU interventions were associated with the best efficacy and a satisfactory acceptability profile compared with other field-directed therapies used in the treatment of AK. Although AK are considered quite common, they lack an accurate descriptive definition and conclusive epidemiologic data. Limited public awareness is a barrier to early and effective treatment, including prevention strategies. While different treatment options are available, there is still a limited understanding of long-term outcomes of treatment as measured by recurrence of cancer prevention.

Intuitionistic Fuzzy Granular Matrix: Novel Calculation Approaches for Intuitionistic Fuzzy Covering-Based Rough Sets

Intuitionistic fuzzy (IF) β-minimal description operators can deal with noise data in the IF covering-based rough set theory. That is to say, they can be used to find data that we need in IF environments. For an IF β-covering approximation space (i.e., an IF environment) with a high cardinality, it would be tedious and complicated to use IF set representations to calculate them. Therefore, it is necessary to find a quick method to obtain them. In this paper, we present the notion of IF β-maximal description based on the definition of IF β-minimal description, along with the concepts of IF granular matrix and IF reduction. Moreover, we propose matrix calculation methods for IF covering-based rough sets, such as IF β-minimal descriptions, IF β-maximal descriptions, and IF reductions. Firstly, the notion of an IF granular matrix is presented, which is used to calculate IF β-minimal description. Secondly, inspired by IF β-minimal description, we give the notion of IF β-maximal description. Furthermore, the matrix representations of IF β-maximal descriptions are presented. Next, two types of reductions for IF β-covering approximation spaces via IF β-minimal and fuzzy β-minimal descriptions are presented, along with their matrix representations. Finally, the new calculation methods are compared with corresponding set representations by carrying out several experiments.

17-β-Estradiol—β-Cyclodextrin complex as an aqueous solution: Structural and physicochemical characterization supported by MM and QM calculations

17-β-estradiol (EST) is an Active Pharmaceutical Ingredient characterized by a low water solubility. Complexation with β-cyclodextrin (βCD) enhances its bioavailability, hence such complex is an interesting research object from pharmaceutical point of view. However, basic facts like description of complex's structure and definition of its molar ratio, were debatable already for decades. This work for the first time justifies the EST:βCD molar ratio as 1:2 using the HRMS (high-resolution mass spectrometry) and phase solubility studies. The latter are used to define complex stability constant, as well. The structure and stability is analyzed using a variety of computational approaches: Quantum Mechanics (QM) based methods (DFT, semiempirical approaches) and MD/MMGBSA approach. In case of the QM, for the first time in the computational analysis of cyclodextrin complexes, a thorough benchmarking test is presented. Different computational parameters (solvent model, presence/absence of dispersion correction etc.) are used. Obtained results are compared with the experimental data.

Descripción y prevalencia de la disyunción del anillo mitral y el ventrículo: ¿variante de la normalidad o patológica?

Introduction and objectivesThe aim of this study was to investigate a new variation of the atrial wall-mitral annulus-ventricular wall junction along the mural mitral leaflet and commissures: the ventricular mitral annular disjunction (v-MAD). This new variant is characterized by spatial displacement of the mitral leaflet hinge line by more than 2mm toward the left ventricle. MethodsWe examined a cohort of autopsied human hearts (n=224, 21.9% females, 47.9±17.6 years) from patients without known cardiovascular disease to identify the presence of v-MAD. ResultsMore than half (57.1%) of the hearts showed no signs of MAD in the mural mitral leaflet or mitral commissures. However, v-MAD was found in 23.6% of cases, located within 20.1% of mural leaflets, 2.2% in superolateral commissures, and 1.3% in inferoseptal commissures. V-MAD was not uniformly distributed along the mitral annulus circumference, with the most frequent site being the P2 scallop (19.6% of hearts). The v-MAD height was significantly greater in mural leaflets than in commissures (4.4 mm±1.2 mm vs 2.1 mm±0.1 mm; P<.001). No specific variations in mitral valve morphology or anthropometrical features of donors were associated with the presence or distribution of v-MADs. Microscopic examinations revealed the overlap of the thin layer of atrial myocardium over ventricular myocardium in areas of v-MAD. ConclusionsOur study is the first to present a detailed definition and morphometric description of v-MAD. Further studies should focus on the clinical significance of v-MAD to elucidate whether it represents a benign anatomical variant or a significant clinical anomaly.

An evaluation of system modularity and interface standards as a means for continued platform level relevance

This paper will develop a descriptive working definition of modularity regarding ship systems. An effort will be made to expose the underlying motivation and attractiveness of modularity in naval vessels utilizing economic salvage value and continued operational relevancy. A survey of 50 years of modern system development in support of modularity will be supported by a historical case study. The historical analogy will focus on the concurrent development of platforms and weapon systems during the age of sail. Specific focus will be given to platform developments and the advent of marine artillery and their associated technological development. The insight developed will then be applied to two modern naval corollaries.

Description and prevalence of ventricular mitral annular disjunction: variation of normality or pathological variant?

Introduction and objectivesThe aim of this study was to investigate a new variation of the atrial wall-mitral annulus-ventricular wall junction along the mural mitral leaflet and commissures: the ventricular mitral annular disjunction (v-MAD). This new variant is characterized by spatial displacement of the mitral leaflet hinge line by more than 2mm toward the left ventricle. MethodsWe examined a cohort of autopsied human hearts (n=224, 21.9% females, 47.9±17.6 years) from patients without known cardiovascular disease to identify the presence of v-MAD. ResultsMore than half (57.1%) of the hearts showed no signs of MAD in the mural mitral leaflet or mitral commissures. However, v-MAD was found in 23.6% of cases, located within 20.1% of mural leaflets, 2.2% in superolateral commissures, and 1.3% in inferoseptal commissures. V-MAD was not uniformly distributed along the mitral annulus circumference, with the most frequent site being the P2 scallop (19.6% of hearts). The v-MAD height was significantly greater in mural leaflets than in commissures (4.4 mm±1.2 mm vs 2.1 mm±0.1 mm; P<.001). No specific variations in mitral valve morphology or anthropometrical features of donors were associated with the presence or distribution of v-MADs. Microscopic examinations revealed the overlap of the thin layer of atrial myocardium over ventricular myocardium in areas of v-MAD. ConclusionsOur study is the first to present a detailed definition and morphometric description of v-MAD. Further studies should focus on the clinical significance of v-MAD to elucidate whether it represents a benign anatomical variant or a significant clinical anomaly.

Investigating the Challenges and Strategies of Thai University Students in Mastering English Idioms

Background: The acquisition of English idiomatic expressions is a critical aspect of language proficiency that unquestionably contributes to the improvement of effective communication skills. A number of studies have been conducted in the field of English idioms; however, there are still unanswered questions in this area. Since learning English idioms is a complex process, further investigation is needed, especially among students learning English as a Foreign Language (EFL) in the specific educational milieu of a university setting. Purpose: This study investigated the attitudes of Thai university students towards the importance of learning English idioms. In addition, it examined the challenges faced by these students in learning and comprehending English idioms, along with the effective strategies employed to overcome the difficulties. Methods: This study adopted a descriptive research design involving 50 fourth-year English major students (12% male, 88% female) from a university in southern Thailand. A survey questionnaire on a five-point Likert scale adapted from Orfan (2020) was used to collect the data from the participants. Results: The findings demonstrated that Thai university students had a positive attitude towards the importance of learning idioms and recognized the critical role they play in successful communication in English. Nevertheless, they faced various challenges when learning English idioms. They reported that idioms were challenging to grasp when taken out of context, and they faced difficulties due to their limited knowledge and cultural background. The participants in the study also reported utilizing different strategies to learn and comprehend idioms, such as guessing the meaning of idioms, using descriptive definitions in English, and memorization. Conclusion: This study offers valuable insights for both educators and researchers, serving as a foundation for the development of more efficient language teaching methodologies and promoting cross-cultural understanding in language acquisition.

Creating chirality in the nearly two dimensions.

Structural chirality, defined as the lack of mirror symmetry in materials' atomic structure, is only meaningful in three-dimensional space. Yet two-dimensional (2D) materials, despite their small thickness, can show chirality that enables prominent asymmetric optical, electrical and magnetic properties. In this Perspective, we first discuss the possible definition and mathematical description of '2D chiral materials', and the intriguing physics enabled by structural chirality in van der Waals 2D homobilayers and heterostructures, such as circular dichroism, chiral plasmons and the nonlinear Hall effect. We then summarize the recent experimental progress and approaches to induce and control structural chirality in 2D materials from monolayers to superlattices. Finally, we postulate a few unique opportunities offered by 2D chiral materials, the synthesis and new properties of which can potentially lead to chiral optoelectronic devices and possibly materials for enantioselective photochemistry.

Measurement of compassion fatigue in animal health care professionals: a systematic review of available instruments and their content validity.

Compassion fatigue (CF) refers to emotional or physical exhaustion and emotional reactions resulting from prolonged exposure to traumatic events, commonly experienced by professionals in caregiving roles. CF is prevalent among healthcare professionals, including those in animal care. Several Patient-Reported Outcome Measures (PROMs) were developed to measure CF, but their psychometric validity was not reviewed systematically. This study aims to identify and review the content validity of CF PROMs used in animal health care professionals. Literature was searched in PubMed, PsycINFO, and EMBASE (1973-2023). We included studies conducted in animal health care professionals, using a PROM to measure CF, reporting at least one psychometric property of this PROM, and published as original research. For each identified PROM, additional literature search was conducted to identify PROM development and content validation studies. Three independent reviewers evaluated the content validity of each PROM using COnsensus-based Standards for the selection of health Measurement INstruments (COSMIN) methodology and summarized the quality of evidence using a modified GRADE approach. The protocol was registered in PROSPERO (CRD42023433982) and results reported following PRISMA guidelines. Initially, 1709 studies were identified. After a double screening, 17 eligible studies were included. CF was measured using six different PROMs or their modified versions. Only one PROM specifically targeted animal health care professionals: the ProQOL-5 Veterinary Medicine Version. This and three other original CF PROMs were reviewed. For all PROMs, the quality of content validity was rated as insufficient due to deficiencies in the concept and items elicitation, inadequate target population representation, and inadequate details on cognitive interview procedures. The overall evidence quality was rated as low due to a limited number of PROM validation studies, poor methodological and reporting quality, and indirect result. There is a scarcity of studies examining CF within the target population, and the quality of evidence for content validity of the reviewed PROMs for CF measurement is currently low. CF definition and construct description in PROM development studies suffer from vagueness and seem inadequately reflected by the content of the reviewed PROMs. Further research with a robust methodology seems necessary to address the identified flows. Measurement of compassion fatigue in people working with animals: protocol for a systematic review. PROSPERO 2023 CRD42023433982. Available from: https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42023433982.

Editing the title of Al-Wahidi’s book (Nazhat Al-Zurafa wa tohfat Al-Lutfa) Printed in the name of (Al-daeawat walfusul) and confirm its attribution to him

The research deals with the various jurisprudences that dealt with the title of a manuscript attributed to al-Tha'alabi. This research shows the correct title, which is (Nazhat Al-Zurafa wa tohfat Al-Lutfa), which was hidden behind a newer paper than the original paper and pasted on it. Also, his attribution to the Thalabi was not valid. This research came to present the circumstances surrounding the title, reveal the hidden title, and confirm the attribution of the book to Abu al-Hasan al-WahidiThe research included an introduction, four de-mands, and a conclusion, which includes a descriptive definition of the manuscript, a statement of previous works that dealt with the title of the manuscript, an indication of its correct title, a presentation of evidence to deny its attribution to Al Tha'labi, a statement of evidence attributing it to Abu Al Hassan Al Wahidi, and a conclusion summarising that.

Definition and anatomical description of the left atrial appendage neck.

The left atrial appendage (LAA) is well known as a source of cardiac thrombus formation. Despite its clinical importance, the LAA neck is still anatomically poorly defined. Therefore, this study aimed to define the LAA neck and determine its morphometric characteristics. We performed three-dimensional reconstructions of the heart chambers based on contrast-enhanced electrocardiography-gated computed tomography scans of 200 patients (47% females, 66.5 ± 13.6 years old). The LAA neck was defined as a truncated cone-shaped canal bounded proximally by the LAA orifice and distally by the lobe origin and was present in 98.0% of cases. The central axis of the LAA neck was 14.7 ± 2.3 mm. The mean area of the LAA neck walls was 856.6 ± 316.7 mm2 . The LAA neck can be divided into aortic, arterial (the smallest), venous (the largest), and free surfaces. All areas have a trapezoidal shape with a broader proximal base. There were no statistically significant differences in the morphometric characteristics of the LAA neck between LAA types. Statistically significant differences between the sexes in the main morphometric parameters of the LAA neck were found in the central axis length and the LAA neck wall area. The LAA neck can be evaluated from computed tomography scans and their three-dimensional reconstructions. The current study provides a complex morphometric analysis of the LAA neck. The precise definition and morphometric details of the LAA neck presented in this study may influence the effectiveness and safety of LAA exclusion procedures.

The Teacher`s Competence Profile – Training in a University Environment

The definition and structural-content description of basic competences of teachers in a normative document presenting the state requirements for the qualification “teacher” in 2021 is a challenge for higher schools in Bulgaria how to practically apply the competence approach in the training of future teachers. The present study is the first that aims to survey the opinion of students studying pedagogic disciplines in relation to the main competences of teachers such as: teaching, relationships with students, relationships with other pedagogical professionals, leadership, work with parents and family community, educational work, work in a multicultural and inclusive school environment. The results illustrate the importance of students' awareness of the teacher's basic professionalpedagogical competencies, including the implementation of reflection in relation to their content components.

Radiographic assessment of the pubic symphysis in elite male adolescent football players: Development and reliability of the Maturing Adolescent Pubic Symphysis (MAPS) classification

IntroductionThe pubic symphysis is susceptible to growth related injuries long after the adolescent growth spurt. Our study describes the radiographic maturation of the pubic symphysis on pelvic radiographs in adolescent football players and introduces the Maturing Adolescent Pubic Symphysis classification (MAPS classification). MethodsAnteroposterior pelvic radiographs of 105 healthy adolescent male football players between 12 and 24 years old were used to develop the classification system. The radiological scoring of the symphyseal joint was developed over five rounds. The final MAPS classification items were scored in random order by two experienced readers, blinded to the age of the participant and to each other’s scoring. The inter- and intra-rater reliability were examined using weighted kappa (κ). ResultsWe developed a classification system with descriptive definitions and an accompanying pictorial atlas. The symphyseal joint was divided into three regions: the superior corners, and the upper and lower regions of the joint line. Inter-rater reliability was substantial to almost perfect: superior region: κ = 0.70 (95% CI 0.60–––0.79), upper region of the joint line: κ = 0.89 (95% CI 0.86–––0.92), lower region of the joint line: κ = 0.65 (95% CI 0.55–––0.75). The intra-observer reliability showed similar results. ConclusionThe Maturing Adolescent Pubic Symphysis classification (MAPS classification) is a reliable descriptive classification of the radiographic maturation of the pubic symphysis joint in athletic males. The stages can provide a basis for understanding in clinical practice and will allow future research in this field.