In this paper, first we discuss an old problem in teaching electron configuration of transition metals and the order in which the orbitals are filled. Then we propose two simple computational experiments, in order to show that in the case of first row transition metals and the main group elements after them, the electrons occupy the 3d subshell before the 4s. It is shown that if we begin with the bare nucleus of above elements in the vacuum and then continue (...) with adding the electrons the 19th electron firstly occupies the 3d subshell and not the 4s. Indeed, the 4s subshell in the third row of periodic table only fills first in the case of K and Ca atoms. However, the 3d subshell in transition metals and the main group elements after them is more stable than 4s and so fills first. Thus there is no scientific reason to write the electron configuration of transition elements as [Ar] 4s 3d and the correct form is [Ar] 3d 4s.Graphical. (shrink)

The expansion of livestock production throughout the world has led to increased demand for high protein animal feed. This expansion has created economic benefits for livestock farmers and other actors in the chain, but also resulted in environmental and social side effects. This study aims to identify a set of sustainability issues that cover the environmental, economic and social dimensions of soymeal and beef production chains. The method applied combines the results of multiple studies, including a literature review and stakeholder (...) surveys. Stakeholder surveys were conducted for three different interest groups and two geographical regions . Our results reveal that the selection of issues in most sustainability assessment studies is a relatively arbitrary decision, while the literature also states that identifying issues is an important step in a sustainability assessment. Defining sustainability issues from a whole chain perspective is important, as issues of sustainability emerge at various stages along the production chain, and are found to vary across stakeholders’ interests. Business stakeholders, for example, perceived economic issues to be more important, whereas the majority of consumer stakeholders and other stakeholders perceived social and environmental issues, respectively, to be more important. Different education levels, knowledge, and living patterns in various geographical regions can affect the stakeholders’ perceptions. The combination of a heterogeneous group of stakeholders and the consideration of multiple chain stages constitutes a useful approach to identify sustainability issues along food chains. (shrink)

The evaluation of students in online education poses a notable challenge, primarily due to the potential violation of academic integrity caused by various forms of cheating during online examinations. This study aims to explore the perspectives of English as a Foreign Language (EFL) learners on the reasons for online exam cheating. The study was conducted using a mixed-methods approach and included 27 participants from three different educational contexts: universities, institutes, and schools. The qualitative phase of the study involved conducting comprehensive (...) discussions using the Google Meet app, allowing participants to explore the factors contributing to online exam cheating. The results of qualitative analysis revealed three broad categories of reasons for online exam cheating: student-related factors, teaching-related factors, and assessment-related factors, each with sub-themes. Followed by this, a ranking scale was administered to the participants to determine the perceived significance of these categories. The implications of this study can guide the development of interventions and strategies targeting these different categories of reasons, ultimately fostering a culture of academic honesty among EFL learners in online exam settings. Also, this study contributes to understanding the reasons for online exam cheating among EFL learners and provides insights for promoting integrity in online assessments. (shrink)

After the end of the Cold War, some Western politicians, using a number of research and university centers, try to put forward theories like the concept of a clash of civilizations and thus impose their policies on the world community and independent countries. In this regard, they are making attempts to present Islam as a kind of threat. Through false propaganda in the media dependent on them, such politicians try to portray the extremist and non-humanistic image of Islam in the (...) ideas of the world community and connect Islam with terrorism. (shrink)

In this study, the speed control of a DC motor with input delay and external disturbance is investigated. A delay-dependent memory state feedback robust predictor-based H ∞ controller that formerly has presented is utilized. Sufficient LMIs conditions provide the stabilizing gain of the predictor-based controller. The first-order model of a DC motor has been studied previously using PID and STA methods. However, in this paper, the delay-dependent robust H ∞ controller is used on both the first and second orders of (...) the DC motor. Finally, the predictor-based H ∞ controller is compared to the PID controller and the common H ∞ controller as well. The simulation results show that the proposed method has been more useful and efficient. (shrink)

Most readings of Tayib Salih’s Season of Migration to the North have focused on Mustafa Saeed and the nameless narrator, both male characters, and they have largely avoided a politically radical reading of the novel. This article attempts to present the female character, Hosna, as the revolutionary par excellence, following Lacan and Slavoj Žižek’s reading of Antigone. Th rough Žižek’s distinction between the act and action, this article argues that Hosna’s deed at the end of the novel, murder and suicide, (...) is not just an action out of hopelessness but rather an act that aims to make a new social order possible. We will try to connect Žižek’s distinction between act and action to Benjamin’s distinction between divine violence and mythic violence and Lacan’s idea of “Th ing-directed desire” (Marc De Kesel 245). By doing so, this article aims to put the extreme violence of Hosna in a new light and argues against the readings that simply ignore her act as an extreme form of violence and fail to see it in a broader framework of philosophical and sociological understanding. (shrink)

Standard unary modal logic and binary modal logic, i.e. modal logic with one binary operator, are shown to be definitional extensions of one another when an additional axiom |$U$| is added to the basic axiomatization of the binary side. This is a strengthening of our previous results. It follows that all unary modal logics extending Classical Modal Logic, in other words all unary modal logics with a neighborhood semantics, can equivalently be seen as binary modal logics. This in particular applies (...) to standard modal logics, which can be given simple natural axiomatizations in binary form. We illustrate this in the logic K. We call such logics binary expansions of the unary modal logics. There are many more such binary expansions than the ones given by the axiom |$U$|⁠. We initiate an investigation of the properties of these expansions and in particular of the maximal binary expansions of a logic. Our results directly imply that all sub- and superintuitionistic logics with a standard modal companion also have binary modal companions. The latter also applies to the weak subintuitionistic logic WF of our previous papers. This logic doesn’t seem to have a unary modal companion. (shrink)

In this paper we first introduce a new neighbourhood semantics for propositional intuitionistic logic. We then naturally extend this semantics to first-order intuitionistic logic. We also study bisimulation between neighbourhood models and prove some of their basic properties for both propositional and first-order intuitionistic logic.

AimsThis study aimed to investigate barriers in the observation of professional ethics during clinical care from a nursing viewpoint. Also, it examined the association between these barriers and nurse demographic variables.MethodsA descriptive-analytic design was carried out on 207 nurses working in selected hospitals within an urban area of Iran in 2019. Data were collected using a standard questionnaire containing 33 questions that measured barriers to observation of professional ethics. The questionnaire measures three domains of management, environment and individual care.ResultsIn the (...) management dimension, the most important barrier preventing observation of professional ethics was the shortage of personnel. For the environmental dimension, biological changes due to working on the nightshift, and for the individual care dimension, a lack of time were the most important barriers preventing observation of clinical ethics. Findings additionally highlighted a significantly inverse association between barriers to observing professional ethics and the male gender, participating in the ethics workshop and high work-level experiences.ConclusionsIt is suggested that nursing managers in hospitals correct and remove obstacles with careful planning and emphasis on principles and standards of care including environmental and managerial factors and training professional ethics to nurses. (shrink)

Background:Privacy is a complicated and obscure concept, which has special meanings in the healthcare environment; therefore, it is essential for healthcare providers to fully understand this conce...

Aim/PurposeThis paper is a review of the progress of the Vietnam socio-economic and development plan and an assessment of the extent to which Vietnam is putting in place the critical social and economic development structures that will enable it to reach the status of “developed nation” in the time set (2020) by its national strategic plan. The research will identify and review trade patterns, trade policy and the effect of foreign aid on Vietnam’s plan to transform its economy and society (...) from a developing nation status to status of developednation. The overriding question stands as “is” Vietnam effec-tively moving towards developed nation statussoon”?BackgroundThis paper examines the history of Vietnam from the command economy in its transition to a market driven economy, the criteria, hurdles and challenges as the country moves towards a developed country status. MethodologyApplied research based on the body of research in socio-economic develop-ment theory, international trade and market theory. The review is conducted by collecting and analyzing data on foreign trade, foreign aid, business and general economic growth, development and social wellbeing. Itidentifies and appraises the trade patterns,trade effects, socio-economic policies and the effect of foreign aid] on the economic growth and the progress of the coun-try towards becoming a developed nation state. (shrink)

Neurofibromatosis type 1 is associated with peripheral and central nervous system tumors. It is noteworthy that the regions in which these tumors frequently arise are the optic pathways and the brainstem. Thus, we decided to trace the procedure of diffusion Magnetic Resonance Imaging alterations along with Short-Wavelength Automated Perimetry examinations of the OPs after surgery and chemotherapy over 1 year, which enabled us to evaluate chemotherapy's efficacy in an NF1 patient with an OP tumor. In this study, a 25-year-old woman (...) with NF1 and left optic radiation glioma underwent surgery to remove the glioma. Immunohistochemistry revealed a Pilocytic Astrocytoma WHO grade I. Post-operation chemotherapy done using nine treatment cycles of administering Temozolomide for 5 days every 4 weeks. Applying the region of interest differential tractography method and SWAP four times every 3 months allowed us to follow the patient's visual acuity alterations longitudinally. The differential deterministic tractography method and statistical analyses enabled us to discover the white matter tracts anisotropy alterations over time. Furthermore, statistical analyses on the SWAP results along time illustrated possible alterations in visual acuity. Then, we could compare and associate the findings with the SWAP examinations and patient symptoms longitudinally. Statistical analyses of SWAP tests revealed a significant improvement in visual fields, and longitudinal differential tractography showed myelination and dense axonal packing in the left OR after 1 year of treatment. In this study, we examined an old hypothesis suggesting that chemotherapy is more effective than radiotherapy for NF1 patients with OP gliomas because of the radiation side effects on the visual field, cognition, and cerebrovascular complications. Our longitudinal clinical case study involving dMRI and SWAP on a single NF1-OPG patient showed that chemotherapy did not suppress the OP myelination over time. However, it should be noted that this is a clinical case study, and, therefore, the generalization of results is limited. Future investigations might focus on genetic-based imaging, particularly in more cases. Further, meta-analyses are recommended for giving a proper Field Of View to researchers as a subtle clue regarding precision medicine. (shrink)