The underexplored field of lanthanide complexes with helicene ligands : towards chiral lanthanide single molecule magnets

The effective combination of chirality and magnetism in a single crystalline material can lead to fascinating cross-effects, such as magneto-chiral dichroism. Among a large variety of chiral ligands utilized in the design and synthesis of chiral magnetic materials, helicenes seem to be the most appealing ones, due to the exceptionally high specific rotation values that reach thousands of deg·cm3·g−1·dm−1, which is two orders of magnitude higher than for compounds with chiral carbon atoms. Despite the sizeable family of transition metal complexes with helicene-type ligands, there are only a few examples of such complexes with lanthanide ions. In this mini-review, we describe the most recent developments in the field of lanthanide-based complexes with helicene-type ligands and summarize insights regarding the further exploration of this family of compounds towards multifunctional chiral lanthanide single molecule magnets (Ln-SMMs)

An alternative approach to gynecological wound healing

An 89-year-old woman was reffered to our Clinic with vulvar cancer. She also suffered from obesity [with body mass index (BMI) 35 kg/m2], persistent hypertension, diabetes mellitus type 2 treated with oral medications. In 2015 she underwent a surgery due to endometrial carcinoma. Total abdominal hysterectomy with bilateral salphingoophorectomy, omentectomy and pelvical node dissection was performed (histopathology revealed adenocarcinoma serosum G2; FIGO stage Ib). In January 2016 after vulvar ulceration biopsy plano-epithelial squamous vulvar cancer was diagnosed. She was referred to surgery. She has undergone an operation in October 2016. She was admitted to gynaecological unit at our institution. Physical examination revealed mutilated vulva with excised labia major, labia minor, and narrowing of vaginal orifice. The right side shown tumor 2.5 cm in diameter, with slough area and no deep infiltration and satellital nodule on the left labia majora 1cm in diameter. The cervix, vaginal wall, rectum and anus appeared normal. There were no enlarged lymph nodes at the inguinal area

NEW COMPETENCE OF BIOLOGY TEACHER IN THE FACE OF SOCIAL AND CULTURAL CHANGES

Education must constantly be adapted to new needs. Educational tasks determine new styles of teachers' work and also their competences, showing that the effects of the course of didactic process depend on the teacher's awareness to a large extent, way of understanding of the school's reality and the students themselves. Currently the media are ever-present. The teacher must be aware of the influence of outside school interference and psychological barriers related to the communication process. Mass media and hypermedia shape new patterns and new values. The 'overheated' and synthetic announcements often limit the intellectual effort and the critical thinking. On the other hand e-communication is a stimulator of mass education. It requires from teachers use of strategies leading to rebuilding the earlier structure of students' knowledge, creating different structures in connection with new students' concepts and needs in response to new information. The survey research among 45 biology teachers was conducted. Conclusions drawn from research results (analysis of documents and survey) allowed the elaboration priorities for biology teacher training in the contemporary world of medi

Development of teal organisations in economy 4.0 : an empirical research

Purpose: The aim of this article is to present the impact of Economy 4.0 on the development of Teal organizations. It has been assumed here that every organization must adapt to change by applying soft management factors (trust, knowledge, agility) in a changing reality. Methodology: During the research, the following work was carried out: desk research, individual in-depth interview, and a questionnaire. The study covered 300 respondents from various micro and small enterprises. The article is based on the first stage of empirical research conducted in 2020. Findings: The research results show that organizations must adapt to changes resulting from the evolution of organizations in Economy 4.0. Flexibility in adapting to change, agility and the willingness of employees to gain new work experience will be particularly demanded by Economy 4.0. Practical Implications: Given the rapid pace of social and economic change, it seems advisable to monitor the functioning of organizations, including business organizations, continuously and systematically in the face of Economy 4.0. Originality/Value: The presented results of the pilot studies show which soft skills will influence the development of organization, especially Teal. The way the organization develops and the direction it takes is the primary responsibility of its leaders.peer-reviewe

Thyroid disfunction and obesity - what comes first? A complex relationship between hypothyroidism and weight gain

Introduction: Obesity and mild thyroid failure are common diseases, and the complex relationship between thyroid function and excess weight gain is still being researched. This study analyzes and summarizes the current scientific reports on the intricate correlation between thyroid dysfunction and obesity.   Material and methods: We have gathered the available materials and scientific reports, analyzing and summarizing them in a single study.   Aim of study: We aimed to summarize the studies conducted so far by analyzing the available scientific reports to answer the question of ‘what comes first’ and to understand the correlation between thyroid dysfunction and excessive weight gain.   Discussion: Thyroid dysfunction in the form of hypothyroidism is associated with metabolic abnormalities, which may play a crucial role in the development of metabolic syndrome. On the other hand, excess level of leptin associated with excess adipose tissue is a potential cause of disruptions in the hypothalamic-pituitary-thyroid axis, manifested as elevated TSH levels. Therefore, it is worth considering certain aspects regarding the inclusion of hormone replacement therapy in obese patients presenting laboratory features of subclinical hypothyroidism.   Conclusion. Obesity-induced thyroid dysfunction is typically reversible with weight loss and hormone replacement therapy should be considered for obese patients with subclinical hypothyroidism only if thyroid antibodies are present to confirm an autoimmune thyroid disorder

Can yoga be the answer? The positive aspects of practicing yoga across various medical conditions - a mini review

Introduction: Yoga is well-regarded for its diverse health benefits, potentially impacting psychiatric, asthma, cardiovascular, autoimmune, and neurological conditions. It is also associated with broader positive effects such as improving quality of life, fitness levels, and psychosocial outcomes for individuals. Hatha yoga, widely practiced and studied worldwide, emphasizes physical postures (asana) and breathing exercises (pranayama), both of which contribute positively to overall mental and physical health. Aim of the study: The aim of this study is to review the benefits of practicing yoga based on the latest scientific research. Both physical benefits, such as improved flexibility, strength, and balance, and psychological benefits, including stress reduction, anxiety relief, and enhanced overall well-being, will be analyzed. This paper aims to demonstrate how regular yoga practice can contribute to an improved quality of life and support the treatment of various health conditions.The mechanisms through which yoga impacts health will also be discussed, and the effectiveness of yoga will be compared with other forms of physical activity and relaxation techniques. Material and methods: We have gathered the available materials and scientific reports, analyzing and summarizing them in a single study. Conclusions: Yoga's diverse health benefits, supported by extensive research, highlight its potential as a valuable therapy for improving overall health and well-being across various medical conditions.

Thyroid disfunction and obesity - what comes first? A complex relationship between hypothyroidism and weight gain

Introduction: Obesity and mild thyroid failure are common diseases, and the complex relationship between thyroid function and excess weight gain is still being researched. This study analyzes and summarizes the current scientific reports on the intricate correlation between thyroid dysfunction and obesity.   Material and methods: We have gathered the available materials and scientific reports, analyzing and summarizing them in a single study.   Aim of study: We aimed to summarize the studies conducted so far by analyzing the available scientific reports to answer the question of ‘what comes first’ and to understand the correlation between thyroid dysfunction and excessive weight gain.   Discussion: Thyroid dysfunction in the form of hypothyroidism is associated with metabolic abnormalities, which may play a crucial role in the development of metabolic syndrome. On the other hand, excess level of leptin associated with excess adipose tissue is a potential cause of disruptions in the hypothalamic-pituitary-thyroid axis, manifested as elevated TSH levels. Therefore, it is worth considering certain aspects regarding the inclusion of hormone replacement therapy in obese patients presenting laboratory features of subclinical hypothyroidism.   Conclusion. Obesity-induced thyroid dysfunction is typically reversible with weight loss and hormone replacement therapy should be considered for obese patients with subclinical hypothyroidism only if thyroid antibodies are present to confirm an autoimmune thyroid disorder

Sudden Cardiac Arrest during Participation in Competitive Sports - systematic review

Introduction: Sudden cardiac arrest during sporting events always arouses strong emotions.No one expects that sudden cardiac arrest could occur in a young, athletic person.There are about 90 cases of sudden cardiac arrest in Poland every day. It may seem that mainly elderly, sick people are at risk of sudden cardiac arrest. Theoretically, this problem should not concern young, athletic people who take part in sports competitions. Numerous screening tests and check-ups should eliminate the risk of sudden cardiac arrest in athletes, but the reality is different. The aim of the following paper is to review the literature on cardiac arrests in athletes during sporting events Material and methods: We have gathered the available materials and scientific reports, analyzing and summarizing them in a single study. Aim of study: Study objective: The aim of our study was to summarize the latest knowledge on sudden cardiac arrest in athletes during sports events. Conclusions: Screening tests reduce the incidence of sudden cardiac arrest in athletes. The most common cause is previously unrecognized heart defects - hypertrophic cardiomyopathy. Football players are most at risk of sudden cardiac arrest. The most important factor influencing survival in sudden cardiac arrest is tim

Preparation and Characterization of Multifunctional Chitin/Lignin Materials

Multifunctional chitin/lignin materials were synthesized. In order to combine mechanical milling of the biopolymers with simultaneous mixing, a centrifugal ball mill was utilized. The resulting materials, differing in terms of the proportions of precursors used, underwent detailed physicochemical and dispersive-morphological analysis. On the basis of FT-IR spectra and results of elemental analysis, the efficiency of the preparation of the materials was determined. The influence of the precursors on the thermal stability of the resulting systems was also evaluated. Zeta potential was determined as a function of pH to describe the electrokinetic stability of aqueous dispersions. This is important for evaluating the utility of the materials and indirectly confirms the effectiveness of the proposed method of synthesis of chitin/lignin products. Measurements were performed to determine basic colorimetric parameters, crucial in the production technology of multiple colored materials. It is expected that chitin/lignin materials will find a wide range of applications (biosorbents, polymer fillers, and electrochemical sensors), as they combine the unique properties of chitin with the specific structural features of lignin to provide a multifunctional material

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