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)

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)

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...

Background: Patient safety, which is a patient’s right, can be threatened by nursing errors. Furthermore, nurses’ feeling of “being a wrongdoer” in response to nursing errors can influence the quality of care they deliver. Research objectives: To explore the meaning of Iranian nurses’ experience of “being a wrongdoer.” Research design: A phenomenological approach was used to explore nurses’ lived experiences. Nurses were recruited purposively to take part in semistructured interviews, and the data collected from these interviews were analyzed using Van (...) Manen’s thematic analysis. Participants and research context: Eight nurses working in three private or governmental hospitals in Tehran, Iran. Ethical consideration: The research design was approved in each participating hospital, and all interviews were carried out at a predetermined time in a private place. Findings: Five themes were extracted from the data: “wandering in unpleasant feelings” (with two subthemes: “unpleasant physical feelings” and “unpleasant emotions”), “wandering in the conscience court” (with three subthemes: “being the accused,” “being the victim,” and “being the judge”), “being arrested in time,” “time for change” (with three subthemes: “promoting accountability,” “promoting learning,” and “strengthening supportive relationships”), and “spiritual exercise.” Discussion: Some of our results are supported by the model of self-reconciliation and the recovery trajectory of “second victims” theory. Conclusion: The meaning of “being a wrongdoer” has positive and negative aspects. Feelings of wandering provide nurses the opportunity to reflect on and re-embrace the professional and moral responsibility of nursing. Nursing managers can convert their “defeats” into a prelude to learning, increase their accountability, and improve the quality of nursing care. (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)

Introduction Although there have been reports of misbehavior and disrespectful maternal care by healthcare providers worldwide, there are few intervention studies aimed at promoting respectful care, particularly among midwives. Research objectives The aim of this study was to examine the effect of Moral Case Deliberation (MCD) on the of midwives’ knowledge and practice in the field of respectful maternity care. Research design and methods This semi-experimental study involved 46 midwives working in the maternity departments of two hospitals affiliated with Bushehr (...) University of Medical Sciences in 2023. The two hospitals were randomly divided into control and intervention groups. All midwives from both hospitals were included in the study. The Dilemma Method of MCD was implemented for midwives of intervention hospital. The Midwives’ Knowledge and Practice of Respectful Maternity Care scale was used for data collection. It was administered both before and two weeks after the intervention. Data were analyzed using SPSS (version 20). Ethical considerations The study was approved by ethics committee of Bushehr University of Medical Sciences in Bushehr, Iran (ethics code: IR.BPUMS.REC.1402.017). All participants provided written informed consent. Findings The intervention group showed a significantly greater increase in knowledge scores from pre-test to post-test compared to the control group ( p <.001). The intervention group had a significantly higher mean change score in practice self-assessment and practice peer evaluation, from pre-test to post-test, than in the control group ( p <.001). Discussion MCD based on the dilemma method can improve practice in the field of respect-oriented midwifery care by increasing knowledge and potentially changing attitudes. Conclusion The Dilemma Method of MCD improved midwives’ knowledge and practice regarding respectful maternity care. This method can be included in the midwifery care quality improvement program to promote respectful maternity care. It is necessary to develop methods for wider dissemination of MCD in the cultural context of Iran. (shrink)