The Influence of Values on the Leadership Style

The study of values has been an issue of interest for several subjects, such as philosophy, social sciences, ethics, axiology etc. Despite the fact that psychologists acknowledge the importance of values as orientation tools for every individual in their environment, generating attitudes which translate into behaviours, the empirical research on this topic has been rather scarce, given the complexity of the field, as well as the lack of a sensitive and valid tool able to allow the measurement of values. The academic research, however, cannot avoid an emphasis of (the) values in the study of leadership. Based on the complete leadership model (Bass & Avolio, 1997), the empirical research we propose aims at studying the influence of values on the informal leadership style. The lot of respondents is made up of students, master degree candidates and prisoners from Târgsor, Prahova county prison - totalling 135 persons, divided in 15 groups with one informal leader for each group. The Multifactor Leadership Questionnaire (Avolio & Bass), Schwartz Value Inventory and the socio-metric techniques for identifying the informal leaders have been applied to all of them. The proposed hypotheses approach the congruence between the leader's fundamental values and those of the group's members, the way the values influence the leadership in the educational environment (students, master degree candidates) as opposed to the prison environment and, in perspective, the interactions of the members within and outside the group, determined by the degree of identification with the others' values

Facile synthesis and characterization of hydroxyapatite particles for high value nanocomposites and biomaterials

Lately Hydroxyapatite has gained a lot of research interest and intense focus due to its structural as well as compositional similarity to the components of human bone mineral. The conversion of calcium-rich precursors to hydroxyapatite could lead to the development of a new sustainable alternative with a valuable environmental and socio-economically impact. Still, current approaches faces lots of challenges in terms of synthesis parameters compatible to a reproducible route for calcium phosphates (hydroxyapatite included) synthesis. The optimization of Rathje synthesis route and characterization of biogenic derived calcium phosphates from dolomitic marble and Mytilus galloprovincialis seashells, constitutes the main goals of this study. The synthesized materials were characterized using FTIR, SEM coupled with EDS, and X-ray diffraction at all synthesis stages. Precursors were also subjected to thermal analysis and differential scanning calorimetry for thermal transformations investigations and dissociation temperature setting. This study suggests that acid quantity and magnetic stirring are the key-factors for Ca/P molar ratio adjustment, hence for the amount of naturally-derived hydroxyapatite. This research also contributes to the development of new strategies for further optimization of the conversion procedure and removal of residual components

PRELIMINARY CHROMATOGRAPHICRESEARCH ON SOME SALVIA SPP. (LAMIACEAE)

Salvia genus, representative for the Lamiaceae family as it comprises approximately one thousand different species, is considered for a wide plethora of therapeutic actions, such as antioxidant, anti-inflammatory, hepatoprotective, antitumoral and antidiabetic activity. The paper presents the preliminary chromatographic investigations of the polyphenols in the aerial parts of some Salvia spp. Using high-performance thin-layer chromatography (HPTLC) coupled with photodensitometry, caffeic acid was identified and quantified in the 20% methanolic extracts of Salviaeherba, in descending order, as follows: S. nemorosa (3.096%) > S. verticillata (3.041%) > S. sclarea (2.663%) > S. glutinosa (1.962%) > S. aethiopis (0.926%)

The use of genetic resources in rose breeding and creation of new rose cultivars through hybridization and selection

Despite the existence of more than 37,000 different varieties of roses worldwide, there remains a significant interest and high relevance in rose breeding. The rose is the most beloved flower in the world, commonly named the “queen of flowers”. In addition to its remarkable ornamental significance, the rose possesses various ecological, environmental, landscaping, food, pharmaceutical and medicinal, cosmetic, and industrial attributes, among others, thereby contributing to its overall socio-economic value. The current study investigated the results of rose breeding in a horticulture research center in the northwest of Romania with over 70 years of experience.  The main method used to generate variability for the selection of new genotypes was artificial hybridization. After 1970, an average of 15-20 crossings per year were carried out, in different parental formulas or types of crosses, with approximately 1000-2000 flowers per pollinated per parental combination. Thousands of F1 hybrids were obtained annually (approximately 10,000-12,000 hybrids per year per hybrid combination), and dozens of elites were selected, grafted, and promoted as clonal selections in comparative trials. The success rate in obtaining new varieties through hybridization was 5.1% from total hybrid combinations, 0.72% from total hybrids, and 1.6% from total clonal selections. Of the total new varieties, hybrid teas represent 11.9%, floribundas 64.2%, shrubs 16.6%, and others 7.1%. 38 new cultivars suitable for open field cultivation were obtained, showing different habits, decorative value, flowering behavior, flower color, fragrance, resistance to frost or major diseases, and intended use. The exploration of new research directions aimed at harnessing the potential of roses, the region, and the socio-economic requirements was undertaken to enhance and beauty degraded, or landslide-prone lands, as well as to introduce damascene roses for the oil perfume and cosmetics industry

High mortality risk among women with acromegaly still persists

IntroductionThe mortality ratio in patients with acromegaly has improved over the last few decades. We aimed to determine the mortality rate and correlated factors in patients with acromegaly before and after the introduction of national protocols for treatment. In addition, we determined whether there are sex-related differences in mortality of patients with acromegaly.MethodsThis observational retrospective study included 399 consecutive patients with acromegaly between January 2001–December 2022. Paraclinical data included random growth hormone (GH) and insulin-like growth factor-I (IGF1) levels, maximal pituitary tumor diameter at diagnosis, first visit, and last evaluation. Standardized mortality ratio (SMR) was calculated by dividing the observed and expected mortality rates. Cox regression analysis revealed the independent factors associated with mortality.ResultsAt the last visit, 31.07% (124) of patients were cured, 22.05% (88) had controlled acromegaly with medication, and 45.31% (181) had not controlled acromegaly. During follow-up (13.03 ± 5.65 years, 5216.62 person-years), 89 patients died (0.017%), resulting in an SMR of 1.18 [95% CI 0.95–1.45]. The independent factors associated with mortality were the last IGF1 level/last random GH level, absence of surgery, gonadotropin deficiency, and age. Patients with normal IGF1 after treatment showed an SMR of 0.71, whereas patients with IGF1 ratio > 1 showed SMR=1.51. Patients diagnosed between 1975–2007 and 2008–2022 had SMR = 1.25 [95% CI 0.97–1.58] and SMR = 1.09 [95% CI 0.68–1.65], respectively. In females with acromegaly, SMR was 1.63 [95% CI 1.24–2.11]; 1.76 [95% CI 1.30–2.34] in women diagnosed before 2008 and 1.33 [95% CI 0.69–2.33] in those diagnosed after 2008. Males with acromegaly had a mortality ratio similar to males from the general population (SMR = 0.99, [95% CI 0.66–1.41]).ConclusionPatients diagnosed with acromegaly in the last 15 years had lower mortality rates than those diagnosed before 2008, due to the availability of new medications, primarily somatostatin receptor analogs and to a higher proportion of patients undergoing surgery. Females still have a high mortality ratio owing to older age at diagnosis and higher risk of metabolic complications. Therefore, efforts should be made for early diagnosis of acromegaly in women

Specialized Manual Therapy Techniques which Can Improve Neuromotor Outcome in Patients with Foot-Drop Syndrome

Introduction: Functional rehabilitation of foot-drop syndrome due to lumbar disc herniation it is a problem that concerns many researchers. Study objective was to investigate if specialized manual therapy techniques and functional electrical stimulation alone and combined can influence the overall neuromotor outcome. Methods: 90 subjects were randomized to 3 groups, 30 subjects allocated to control group (CG) which received physical therapy, 30 subjects in functional electrical stimulation group (FES) and 30 subjects in combined FES with manual therapy techniques (FES-MT). All groups received a number of 20 sessions. We evaluated nerve conduction study, dynamometry, goniometry, functional ankle disability index (FADI), Oswestry Disability Index (ODI) and Numeric Rating Scale (NRS). Results: For Compound muscle action potential we have found significant modifications when comparing FES-MT vs CG (p<0.011). For dynamometry we registered as follows: FES-MT vs CG (0.0001), FES-MT vs FES (p<0.003). ODI and FADI scores were more significant in FES-MT and FES compare with CG. Conclusions: Manual therapy techniques utilized for increasing the excitability of neuromuscular spindle can increase the overall functionality of the tibialis muscle in case of foot drop syndrome. The combination between FES and MT showed better functional results than physical therapeutic exercises and FES alone