pp-Groups for which each outer pp-automorphism centralizes only pp elements

An automorphism of a group is called outer if it is not an inner automorphism. Let $G$ be a finite $p$-group. Then for every outer $p$-automorphism $\phi$ of $G$ the subgroup $C_G(\phi)=\{x\in G \;|\; x^\phi=x\}$ has order $p$ if and only if $G$ is of order at most $p^2$

Knowledge, attitude and practice of urban and ruarl households towards principles of nutrition in Iran: results of NUTRIKAP Survey.

Background: The aim of this study was to assess knowledge, attitude and practice of urban and rural households toward principles of nutrition in Iran. Methods: The study population was Iranian households who live in rural and urban areas in all provinces of the country. The sampling method at households’ level in each province was single stage cluster sampling with equal size clusters. The incumbent data was collected by a structured questionnaire and through the interview with the eligible subject in each household. Results: A total of 14,136 Iranian households were selected as total sample size, 9,149 urban households, and 4,987 rural households. Around 57.2% of urban and 49.5% of rural households was aware of food groups. Respectively in urban and rural households, about 35.1% and 39.7% had correct knowledge toward roles of food groups. Approximately 41.5% and 39.9% of households had accurate knowledge about reason of food eating in urban and rural areas, respectively. The results showed that 79.6% of them had favorable attitudes. The most of the households consumed red meat and poultry weekly whereas fish was eaten rarely. Fruits, vegetables and dairy were consumed daily in the most of households. Sugar intake was daily in the most of households and cream and butter intake was weekly. Conclusion: The most of households had moderate knowledge and good attitudes. Practice of families about food consumption was good. The results of this study can be used for proper intervention for improving of health society

The Rule of States Immunities and Countering Terrorism With Emphasis on The Crash of a Ukrainian Plane

The rule of immunity of states and their property from the jurisdiction of domestic courts is a rule of customary international law and exceptions are set out in customary international law as well as in the 2004 United Nations Convention on Immunity but some countries, such as Canada, have begun efforts to add a new exception called terrorism by amending their former immunity law earlier this century. The crash of a passenger plane with P. S. 752 belonging to Ukraine in 3 January 2020 as a result of hitting two IRGC missiles has several legal issues, including the legal and criminal liability of the perpetrators and culprits of the accident, how to compensate damages, violation of obligations under international conventions, has created the international responsibility of the Iranian government and the possibility of litigation by survivors in domestic courts or litigation in the International Court of Justice. Subsequently, some survivors of the plane crash filed a lawsuit in Ontario and a sentence was handed down to Iran, citing the deliberate firing of a missile and its terrorist nature. In the area of government immunity, as well as the draft of the 2004 United Nation Immunity Convention and the attempt to implement the vote issued by the survivors, the rule of government immunity has faced a new challenge

Evaluating the educational value of simulation games: Learners’ perspective

Simulation games (SG) offer great opportunities for students to learn and experience real-world business decisions in a risk-free learning environment. However, the impact of using SG on educational outcomes is not fully understood. Drawing on experiential learning theory, we develop a conceptual model to examine students’ perceptions of the educational values generated from a SG adopted in a postgraduate program at a UK business school. The study gathered data from 120 students by using survey data and qualitative data from students’ reflective reports. Results show that SG have positive impact on students’ conceptual understanding, skills development and affective evaluation of their learning experience. The paper discusses the findings and its implications for educational practitioners and offers directions for future research

A new approach to analyzing the type of moisture inside the filter cake of hematite concentrate

Filters are widely used for dewatering in the mining industry. In general, different parameters affect vacuum filtration, such as solid percentage, vacuum level, particle size distribution, filter cloth, and chemical additives. These parameters can influence filtration properties such as cake moisture, throughput, and filter cloth lifetime. Moisture and throughput usually are used to determine the quality of filtration. In this study, new variables were used to express the filtration and characteristics of filter cake at a microscopic scale. The quality of the filter cake can be precociously analyzed using the void fraction and density of the filter cake. The present study aimed to propose some new variables to properly analyze the filtration process, improve the filtration rate, and decrease the cake moisture of Gol-E Gohar iron ore concentrate. In this regard, a series of filtration experiments were implemented using laboratory-scale bottom top-feed vacuum filters. The results showed that an increase in the solid percentage decreased the void fraction from 0.45 to 0.40 and increased cake density from 0.30 to 0.33 gr.cm-3, respectively. Increasing the particle size increased the void fraction from 0.415 to 0.43. Furthermore, the type of structural or capillary moisture of the filter cake could be determined using a void fraction

Nutritional knowledge, attitude and practice of Iranian households and primary health care staff: NUTRIKAP survey

The aim of this study is to determine knowledge, attitude and practice of Iranian households and health staff on nutrition at province level. The sampling method in NUTRIKAP survey for households in each province is singlestage cluster sampling and the size of clusters is equal. The sampling method for health staff in each province is stratified random sampling. Samples are selected from physicians, health experts, health technicians, nutritionists and health assistants (Behvarz). Overall, 14136 people in 57 clusters in each province and 480 health staff over the country participate in this survey. The necessary data will be gathered by the structured questionnaire and the interview with the eligible person in each household. Data gathering from health staff will be carried out by selfadministered questionnaire. The results of this study can help the bureau of community nutrition to provide the proper interventions to improve nutritional health of households