The study examines the relationship between strategic leadership, strategic performance, and corecompetence among teachers from Lebanon's educational sector. Using a sample size of 106 observations,with a convenient sampling method (quantitative), the results, which are attained using regression analysis,showed that core competence has a direct effect on strategic performance and strategic leadership.Conversely, strategic leadership has not shown its significant mediation role in effecting strategicperformance through core competence. The examination of the data is performed using the mediationregression model. Other implications, limitations, and future works are further discussed.

INTRODUCTION Addiction is not solely "substance dependence". Diminished control is a core defining concept of psychoactive substance addiction. Several behaviors, besides psychoactive substance ingestion, produce short-term reward that may engender diminished control over the behavior. Growing evidence suggests that behavioral addictions resemble substance addictions in many domains, including phenomenology, tolerance, comorbidity, overlapping genetic contribution, neurobiological mechanisms, and response to treatment. This similarity has given rise to the concept of non-substance or behavioral addictions, i.e., syndromes analogous to substance addiction, but with a behavioral focus. The type of excessive behaviors identified as being addictive include gambling, use of computers, playing video games, use of the internet, exercise, and shopping. Behavioral addictions have been proposed as a new class in DSM-5, but the only category included is gambling disorder. Internet gaming disorder is included in the appendix as a condition for further study. The ICD-11 included also the definition of a new disorder, gaming disorder. To present actual knowledge about behavioral addictions in childhood and adolescence. METHODS Analysis of data in available literature in data basis and textbooks. RESULTS Some behavioral addictions are becoming more common in children and adolescents. Dominant are gaming and gambling addiction that are also best researched. CONCLUSIONS Behavioral addiction becomes an epidemic in children and adolescents.

Abstract The aim of this paper is to analyse the stand-alone operation of the microgrid located in Umoljani, Bosnia and Herzegovina. The analysis was performed for two scenarios; one representing a summer day and the other a winter day. The analysed network was modelled using the DIgSilent PowerFactory. The Photovoltaic (PV) system, Wind Generator (WG) and battery sizing were performed using the HOMER software tool. The load data for the location was obtained from JP Elektroprivreda Bosne i Hercegovine. The analysis showed that the network was able to operate in stand-alone mode. Voltage levels were under the voltage limit defined by EN 50160. Line loading was decreased compared to loading in grid-connected mode. As given by the obtained results for the two scenarios, the consumer demand could be satisfied without the inclusion of WG. However, different input data (wind speed data measured on the location) could change the sizing of the production facilities as the results of the optimization calculations in HOMER, which needs to be considered in microgrid configuration.

Abstract The Bosnian Islamic community has led the Islamic affairs of most Slavic Muslims in the Balkans since 1882. While authoritarian and secularist states represented considerable dangers for its survival, freedom in independent Bosnia brought its set of challenges. Since the 1990s, is faced three major dynamics: efforts of the dominant Bosniak Party to involve the Islamic Community in spearheading the nation-building drive among the Bosniaks; the pluralisation of Islamic authorities and influences coming in from the Islamic world (especially from Iran, Saudi Arabia and the Persian Gulf, and from Turkey); and the increasing pluralisation of the Islamic scene within the country. All have variously challenged the Bosnian Islamic community’s practice, authority and monopoly. The Islamic Community in Bosnia and Herzegovina (IZ BiH) has met those challenges by gradually detaching itself from national politics, by balancing foreign influences and by building up its institutional capacities.

On September 12, 2020 passed away prominent scientist, academician professor Mehmed (Mesa) Gribajcevic, former Head of Divison of the Clinic for Gastroenterohepatology of the Clinical Center of Sarajevo University.

Our basic objects will be compact, even-dimensional, locally symmetric Riemannian manifolds with strictly negative sectional curvature. The goal of the present paper is to investigate the prime geodesic theorems that are associated with this class of spaces. First, following classical Randol’s appraoch in the compact Riemann surface case, we improve the error term in the corresponding result. Second, we reduce the exponent in the newly acquired remainder by using the Gallagher–Koyama techniques. In particular, we improve DeGeorge’s bound Oxη, 2ρ − ρn ≤ η < 2ρ up to Ox2ρ−ρnlogx−1, and reduce the exponent 2ρ − ρn replacing it by 2ρ − ρ4n+14n2+1 outside a set of finite logarithmic measure. As usual, n denotes the dimension of the underlying locally symmetric space, and ρ is the half-sum of the positive roots. The obtained prime geodesic theorem coincides with the best known results proved for compact Riemann surfaces, hyperbolic three-manifolds, and real hyperbolic manifolds with cusps.

The establishment of the United Nations after World War II raised hopes of a new era of peace. This was over-optimistic. Between 1945 and 1992, there were 149 major wars, killing more than 23 million people. Recent developments in warfare have significantly heightened the dangers for children. During the last decade child war victims have included: 2 million killed; 4-5 million disabled; 12 million left homeless; more than 1 million orphaned or separated from their parents; some 10 million psychologically traumatized. Researches indicate that children do develop PTSD after experiencing very stressful, life-threatening events such as happen in war. Wars of 21st century are often guerrilla-type civil wars in which women and children are not only the main victims, but are deliberately targeted. Thousands are displaced both internally and across borders. Wars at the end of nineties of 20th century in the region of ex Yugoslavian countries brought all the cruelty of war vivid again on European ground. Population were exposed to death, threatened death, actual or threatened serious injury, or actual or threatened sexual violence. During the War in Bosnia and Herzegovina 1992-1995 there were about 100 000 people killed (20% woman and 3.5% children) and about 18 000 children were orphaned because of war. Children are not capable to regulate their emotions and hyper-arousal on their own. It depends of the way how their parents (caretaker) regulate her/his own emotions. During the war weak child's ego is paralyzed with intensive stimuli and floating anxiety, it does not manage to make constructive solution for traumatic experiences in such a short time. Mothers with small children are especially vulnerable group during the war time: they are supposed to take care about children and feel happiness, what is almost impossible Severe war experiences could cause depressive symptoms in mothers, what reduce their emotional disposability and could lead in different form of the child's neglecting. PTSD symptoms were lasting longer in children if their mothers have had functioning problems. Traumatization of mothers is connected with different behavior problems in their children. Wars are continuing all over the world and there is a continuity of researches about their consequences on children. Any programs that intend to mitigate the psychological effects of such trauma need to adopt a public health approach aimed at reaching many thousands.

The purpose of this study was to examine the relationship between leg muscle power, balance, coordination, and shooting skills in soccer. Participants in this study used 89 soccer athletes with an age range of 15-18 years (M = 17.6; SD: 1.30). The research instrument used a coordination test (soccer wall volley test), balance test (modified bass test), leg muscle power (standing long jump test or broad jump), and shooting skills test. Data collection techniques, namely by measuring tests and measurements by the implementation procedure. Data analysis in this study was using Pearson correlation and regression analysis with the help of the IBM SPSS 24 application. The results showed that: 1) There was a relationship between leg muscle power and shooting ability using instep; 2) There is a relationship between balance and the ability to shoot using the instep; 3) There is a coordination relationship with the ability to shoot using the instep; and 4) There is a relationship between leg muscle power, balance, and coordination with the shooting ability using the instep. Recommendations for further research are suggested to involve other independent variables (X) that are relevant to this study, such as leg length, running speed, and angle of impact.

Background: Respiratory distress syndrome (RDS) in premature neonates has high morbidity, and it is encountered as one of the most common pathological conditions in these patients. This prospective study included 51 patients with a mean gestational age of 31 gestational weeks, hospitalized in the neonatal intensive care unit (NICU) in a tertiary-level university hospital. Aims and Objectives: The aim of our study is a comparison between lung ultrasound (US) and chest radiography in diagnosing RDS in premature neonates. Materials and Methods: US findings were classified into three profile scales and X-ray findings into a four-grade radiographic scale. Results: The results show a good concordance between chest radiography and lung US with kappa, sensitivity, and negative predictive value results in favor of US. Most of the patients had US-profile 1, which corresponds to X-ray profiles 3 and 4. US finding included the presence of confluent B lines, “white lungs,” subpleural consolidations, and thick pleura, but also A-lines, mostly found in a resolution of the disease and mild cases. Conclusion: Lung US still is not a routine procedure despite its wide use in NICUs, and as non-harmful, repeatable method, it can be used as a complementary modality to a chest X-ray. By introducing lung US as a standard method of examination in day-to-day work, it would be possible to reduce the use of X-ray studies in premature neonates.

Introduction: Many evidence indicates that Carcinoembryonic antigen (CEA) and Carbohydrate antigen 19-9 (CA 19-9) have strong reactivity with tumor cells and may serve as a useful marker in identifying patients with colorectal cancer (CRC). Objectives: The goal of this study was to evaluate the relationship between preoperative concentration of serum levels of CEA and CA 19-9 and progression of colorectal cancer. Methods: The retrospective study included 80 patients operated for colorectal cancer at the Clinic for General and Abdominal Surgery, Clinical Center of University of Sarajevo, from 2013 to 2018. The following clinical and laboratory parameters were observed: age, sex, preoperatively measured concentrations of CEA and CA 19-9 antigens, CRC localization, postoperative histopathological findings and CRC stage (TNM classification). All of the data above were processed by relevant statistical methods, with an accepted level of statistical significance of p <0.05. Results: The highest serum levels of CEA and CA 19-9 were observed in stage IV of CRC. Average CEA and CA 19-9 values did not differ significantly between tumor stages (p>0.05). Preoperatively measured serum concentrations of CEA and CA 19-9 in patients with CRC were significantly correlated (rho = 0.328, p = 0.001). An increase in the depth of tumor invasion of the intestinal wall tumor (pT) is followed by an increase in the serum value of the CEA marker, but this ratio was not statistically significant (rho=0.194, p=0.080), while the relationship between depth of intestinal wall invasion and serum level of CA 19-9 was significantly positive correlation (rho = 0.252, p = 0.024). However, the linear regression analysis model showed that serum levels of CEA and CA 19-9 could not be predictors of CRC stage and depth of tumor invasion of the intestinal wall (p> 0.05). Conclusion: Preoperatively measured serum values of CEA and CA 19-9 cannot indicate the specific stage and histopathological size of the CRC.

The war in Bosnia and Herzegovina (1992-1995) was an extremely hard traumatic event with different losses, separations of people, injuries, hard physical and psychical suffering of everyone. Children were especially in difficult conditions. One of the most remarkable things about children, as anyone who works with them soon finds out, is their resilience. While children are vulnerable to psychic damage and, if the damage is deep enough, to delays in emotional and even physical growth, they also have an astonishing capacity to bounce back. This is one of the most rewarding things about treating traumatized children. For many children, it takes very little, perhaps only some words of understanding, to help them tap into their own ability to heal. Taking care of child war psycho-trauma was a difficult task for me, as the war-time head of Department of psychiatry, without enough knowledge in child psycho-trauma and as person with a high responsibility, to organize together with other psychological caretakers of children, especially refugee children. This presentation will be some kind of my remembrance of period of 20-25 years ago when we, I think did good work of what we could and what we knew.

Introduction: Symptomatic and etiopathologic heterogeneity of schizophrenia (SCH) and bipolar disorder (BD) can be adequately addressed using a dimensional approach to psychopathology, as well as interpreting physiological properties and markers as predictors of disease onset and relapse. Risk factors, genetic and environmental, are likely to modify the neurobiological processes characteristic of certain physiological processes that manifest to a greater degree of overlapping symptoms. One of the most common laboratory tests in psychiatric patients is a standard laboratory blood test. It gives us an insight into the general somatic condition of the patient. It assesses the ability to transport oxygen to tissues and carbon dioxide back to the lungs via erythrocytes (RBC) and hemoglobin (HGB) as their most important constituents, and is also an indicator of iron status and blood oxygenation. Aim: Schizophrenia (SCH) and bipolar disorder (BD) are psychiatric disorders whose complex etiology and pathogenesis are still far from known. A correlation between red blood cell abnormalities and these diseases has been recognized in some studies. One of the most common laboratory tests in psychiatric patients is a standard laboratory blood test. However, so far there is a small number of published papers that relate to the relationship between laboratory parameters of blood and the aim of this paper is to reveal more light in this subject. Methods: The research was done as an observational prospective clinical study that has evaluated different physiological and pathological parameters in patients with BD and SCH over a two-year period. A total of 159 patients with schizophrenia, 61 patients diagnosed with bipolar disorder and 82 healthy subjects participated in this study. Results: At baseline, BD compared to SCH patients had higher mean lymphocyte count (2,6±0,7 vs. 2,0±0,6x109; p=0,006) and haemoglobin concentration (146,8±12,2 vs. 140,2±14,7 g/L; p=0,03), and significantly lower red cell distribution width (13,6±2,2 vs. 14,7±1,8%; p=0,008). In both BD and SCH patients there was a significant number of patients with low red blood cells count and low haemoglobin concentration, and high MCH and MCHC at baseline and at 3 and 6 months of follow up. Conclusions: The finding that SCH as well as BD differed from controls with respect to red blood cells, hemoglobin, lymphocytes, and average platelet count was consistent with previous findings and could be understood as a qualitative measure in the evaluation of this sample. The fact that no association with other parameters was found, as well as an association with the diagnosis, does not exclude that these associations can be found in larger samples.