Background: Many Jordanian university students complain of the behavior of some teaching staff. Also, they complain of the grading systems in universities. Aim: This study concerns the occurrence of different forms of student mistreatment and student mistrust of the grading system in the Jordan University of Science and Technology (JUST) as an example of universities in Jordan. Method: A total of 500 students in five health related faculties in JUST responded to a questionnaire. Results: Our results were as follow: (i) 61% of the students had experienced at least one form of mistreatment; (ii) perceived mistreatment most often (52%) had taken the form of psychological mistreatment (shouting and humiliation); (iii) other forms of mistreatment such as physical harm (32%), mistreatment related to religion (36%), mistreatment related to external appearance (35%), sexual harassment (33%) and mistreatment related to specialty (29%) were also common; (iv) with the exception of mistreatment related to specialty which was high among the nursing students, perceived mistreatment did not vary significantly between the different faculties; (v) the male students (66%) complain more than female students (56%); (vi) perceived mistreatment was exceptionally high among the Israeli Arabs, 83% compared to 59% for the Jordanians and 65% for other nonJordanian Arabs; (vii) fellow students (44%), professors (37%) and laboratory technicians (19%) were cited as major sources of mistreatment. Many students (66%) believe that grading system in JUST is unfair. Ninety seven percent of the Israeli Arabs did not trust the grading system compared to 64% of the Jordanians and 66% of the non-Jordanian Arabs. Conclusions: This study suggests that, feelings of mistreatment among university students is strong while their trust of the university grading system is low. Perceived mistreatment and an unfair grading system may be a major source of stress among our students and may affect the process of teaching and learning in our country. This should alert the university administration to face these issues and try to solve them.

Preparation of the bioactive MgO-CaO-SiO2-P2O5-CaF2 glass was carried out utilizing tap casting and powder metallurgy methods. The original composition was modified with 0.2% Y2O3 and carbon additions. The mother and the modified bioglass were examined, and comparative studies were performed between the mother and modified type to study the compositional modification effects on physical, mechanical and biological properties. The histology of mother type showed that this type has a good biocompatibility with no rejection or inflammation reaction with the host bone, and new bone generation and formation were shown in the region of implant. The modification with 0.2% Y2O3 achieved a good improvement in the mechanical properties when compared with the mother system. The histology of this type showed a normal acceptance with no inflammation reactions. On the other hand, the modification with carbon achieved a superior improvement in the mechanical properties compared to the mother bioglass and showed a good acceptance with no inflammation reactions with the host body as well.

The morphological and quantitative features of neurons in the adult human ventral anterior thalamic nucleus were studied in Golgi preparations. Two neuronal types were found and their quantitative features were studied. Golgi-type I neurons were medium to large cells with dense dendritic trees and dendritic protrusions and short hair-like appendages. They have somatic mean diameter of 30.8 microm (+/-9.4, n = 85). They have an average 100.3 dendritic branches, 48.97 dendritic branching points, and 58.85 dendritic tips. The mean diameters of their primary, secondary, and tertiary dendrites were 3.1 microm (+/-1, n = 80), 1.85 microm (+/-0.8, n = 145), and 1.5 microm (+/-0.4, n = 160), respectively. Golgi-type II neurons were small to medium cells with few sparsely branching dendrites and dendritic stalked appendages with or without terminal swellings. They have somatic mean diameters of 22.2 microm (+/-5.8, n = 120). They have an average 33.76 dendritic branches, 16.49 dendritic branching points, and 21.97 dendritic tips. The mean diameters of their primary, secondary, and tertiary dendrites were 1.6 microm (+/-0.86, n = 70), 1.15 microm (+/-0.55, n = 118), and 1 microm (+/-0.70, n = 95), respectively. These quantitative data may form the basis for further quantitative studies involving aging or some degenerative diseases that may affect cell bodies and/or dendritic trees of the Golgi-type I and/or Golgi-type II thalamic neurons.