Surface modification influenced properties of silicon nanowires grown by Ag assisted chemical etching with ECR hydrogen plasma treatment

Silicon nanowires (SiNWs) are fabricated by Ag assisted chemical etching and are treated with hydrogen plasma created by electron cyclotron resonance (ECR) plasma system at 600 watts microwave power for various time durations (0�30 min). The hydrogen plasma exposure on the surface of the SiNWs reduced the surface roughness and increased the crystalline nature. SEM analysis revealed that the diameter of the SiNWs decreased on plasma exposure. The electrical conduction measurements suggested that the hydrogen plasma exposure for 5 min on the SiNW surface enhanced the electrical conductivity when compared to as fabricated SiNW surface. The hydrophobic nature of fabricated SiNWs was transformed to hydrophilic at plasma exposure for lower time duration. On plasma exposure of NWs for 30 min the sample turned hydrophobic. Study of different properties of the SiNWs before and after plasma treatment revealed that there is pronounced effect of plasma on the nature of SiNWs

Knowledge and attitude towards computer usage among health care students in India -across sectional study

Background: As computers and internet usage is increasing rapidly in all fields more so with health care systems, an immediate attention on the computer knowledge and its application is needed for health professionals. Aim: To assess the knowledge of computer technology and their attitude towards its usage among health care students in an institution located in India. Materials & Method: A cross-sectional questionnaire based survey was conducted among dental, medical House surgeons (interns) and final year nursing students of Mamata Institutions in Khammam, Andhra Pradesh, India. A pretested closed ended questionnaire was prepared and was distributed. Results: A total of 260 subjects had participated in the study (female=170, male=90). About 42% of the subjects had their own computer or laptop; 84% of the students thought that a separate subject of computers should be added to the curriculum and 87% of the students thought that computers were necessary to manage patients′ information. Conclusions: There is a need to improve the health care students′ knowledge on computer education and application of this knowledge in to their clinical practice

Effect of aromatherapy on dental patient anxiety: A randomized controlled trial

Introduction: Dental anxiety is a common and potentially distressing problem, both for the patients and for dental practitioners. It is considered to be the main barrier and affects the working lives of dental professional potentially compromising their performance. Aim: To know the effect of aromatherapy in the reduction of dental anxiety and to compare the anxiety levels of dental patients with the control group. Materials and Methods: A randomized controlled trial design was used. Of 40 dental clinics in Khammam town, 10 dental clinics were selected by simple random sampling method. A total of 100 patients attending the dental clinic for the first time were included in the study. Ambient odor of lavender was maintained with a candle warmer. A questionnaire comprising demographic information, smoking status, Modified dental anxiety scale (Humphries et al. in 1995), was given to the patients when they were waiting in the waiting room. Student's t-test and ANOVA test were used for data analysis. The level of significance was set at 0.05. Results: Considerable decrease in anxiety scores in 3 age groups was observed. A statistically significant (P = 0.002) decrease with age in mean anxiety score. A significant difference in anxiety scores of lavender group, a significant decrease of anxiety scores with an increase of age. Conclusion: Lavender decreased the current anxiety scores of patients effectively

Is smartphone a tool for learning purpose? - A survey among students of a dental college in Telangana state

Introduction: Smartphone and mobile internet service usage by students has increased in the recent years and therefore presents a significant potential as learning tools. Aim: The aim of this study is to assess the usage of smartphones for learning purposes among dental students. Materials and Methods: A cross-sectional questionnaire-based study was conducted at a teaching health-care institution in Telangana among dental undergraduate students. Data were collected about their smartphones and connections, general use of smartphones, smartphones for learning purposes, and their attitude toward smartphones for learning purposes. Descriptive statistics were calculated. Results: Out of the 300 dental students, 259 students owned smartphones and 248 students had access to internet services. Most popular devices were Androids and iPhones. A total of 86% students used their smartphones to take photos and record their work. Majority (80%) of them used smartphones to obtain study material. Out of all the participants, 53% had apps related to dental education. Most of the students preferred their smartphones to library to access information and study materials. The attitude of the students was positive toward mobile learning, and majority of them expressed that smartphone usage for educational purposes should be encouraged by the college and staff. Conclusion: Majority of students use smartphones for educational purposes. It was observed that students prefer to access information from online resources to library. Therefore, this might present an opportunity for educators to design suitable teaching interventions and develop diverse learning approaches

Knowledge and attitude of medical professionals towards emergency management of avulsed tooth in a teaching medical hospital, Khammam Town, South India

Introduction: Injury to both the primary and permanent dentitions and their supporting structures is one of the most common problems. Avulsion of permanent tooth is one of the serious dental injuries and a prompt and correct emergency management is very important for prognosis. Studies evaluating medical professionals′ knowledge about tooth avulsion and its management are rare. Aim: To assess the knowledge and attitude of medical professionals working in a teaching medical hospital in Khammam Town toward management of an avulsed tooth. Materials and Methods: A cross-sectional questionnaire-based study was conducted with a sample of 192 medical professionals including teaching staff, postgraduates, and house surgeons. A standard self-administered questionnaire was used for data collection, which was done over a period of 1-month. Chi-square test was used for data analysis with a P < 0.05 considered to be statistically significant. Results: Among the study participants 64% were aware of the meaning of avulsed tooth. About 54% of respondents preferred saline as the best storage medium to store the tooth in case professional care is not possible immediately. There was varied opinion regarding the replantation time. In this study, 41% of the participants felt 45 min as the ideal time for replantation. Conclusion: Most of the participants showed a fair knowledge on the emergency management of an avulsed tooth and their dilemma pertaining to some aspects of this procedure that can be solved by providing required awareness and knowledge

Assessment of psychiatric morbidity among health-care students in a teaching hospital, Telangana state: A cross-sectional questionnaire-based study

Introduction: Professional education can be a stressful experience for health-care students and may impact negatively on emotional well-being and academic performance which leads to psychiatric morbidity. The aim of this study is to assess the prevalence of psychiatric morbidity among the professional health-care students. Materials and Methods: A cross-sectional study was conducted among professional health-care students in a tertiary care teaching hospital of Telangana state. The information regarding demographic data, academic achievements, and positive and negative events in the recent past was collected using semi-structured pro forma, and the General Health Questionnaire (GHQ)-28 is used to assess the psychiatric morbidity. Descriptive analysis and Pearson's correlation analysis were done to analyze the data. Results: A total of 836 students participated in the study, and the overall mean GHQ total score in the study population was 26.8, which is above the cutoff (24) score. The prevalence of psychiatric morbidity among study population is about 58.7%. Academic achievement and negative events in the recent past had effect on psychological morbidity and showed high GHQ scores among study population which was found to be statistically significant. Conclusion: The poor academic performance and negative events had a strong impact on psychological morbidity of students. The higher level of psychological morbidity warrants need for intervention such as social and psychological support to improve the quality of life for the health-care students. Further, a creation of positive academic environment as a teamwork of faculty, administration, educational experts, and students helps to develop psychological healthy dental and medical professionals who can perform better in a coming future

Evaluation of preparedness for medical emergencies among dental practitioners in Khammam town: A cross-sectional study

Introduction: Medical emergencies can occur frequently in the dental setting. Effective management of an emergency situation in the dental office is ultimately the dentist responsibility. The assessment of preparedness of dental practitioners would help to bring about required changes in the teaching aspects of dental institutions, which would ultimately help dental graduates to improve knowledge regarding management of medical emergencies. This would also make dental offices available with required emergency drugs. Aim: To evaluate the preparedness for medical emergencies among the dental practitioners in Khammam town. Materials and Methods: A cross-sectional questionnaire-based study with a sample of 301 was conducted among dental clinicians at Khammam to evaluate their knowledge regarding medical emergencies. The questionnaire consisted of nineteen questions. First nine questions are objective questions, requiring a simple yes or no reply. Next ten questions are multiple choice questions regarding Emergency Medical Services and basic life support. Chi-square test was used to analyze the data. A P < 0.05 is considered significant. Results: The results of this study showed that almost all the participants (94.02%) enquired about medical and drug history, but only 67.11% of them obtained a complete health history proforma of the patient. About 83.06% record vital signs, 74.09% of members report about attending workshops on emergency training and management, and 50.5% of members were either not sure or not in a position to handle the emergency condition. Conclusion: The results of this study reflect an alarming situation of the capability of dentists to deal with medical emergencies at dental offices and make available all the emergency drugs at their offices

Do the supportive staff have enough oral health knowledge? - A study at a teaching health care institution in South India

Introduction: Oral hygiene plays an imperative role in preventing oral diseases. The assessment of knowledge, attitude and practice in relation to oral hygiene among the supportive staff members would help the professional, to inculcate in their patients the acceptable oral habits to thwart oral diseases as these staff members are a bridge between healthcare professional and the patient. Materials and Methods: A cross-sectional questionnaire-based study was conducted at a teaching health care institution in South India. The staff members who gave their consent after detailing the objective and rationale of the study were included in the study. Data were collected about their oral health knowledge, attitude and oral hygiene practices. Descriptive statistics was calculated. Results: Nearly 79% brushed their teeth only in the morning; 95% used a tooth brush and toothpaste regularly. Dental floss (0.5%) was the least used cleaning aid. About 57% of the participants visited the dentist only when necessary. The majority of the participants had no reason for not visiting the dentist. 72% were aware of the role of sugar in causing dental caries, and 55% were unaware of the role of fluoride in dental caries. Conclusion: This study demonstrates that the majority of them brush their teeth only once, and most of them used both tooth brush and tooth paste to brush their teeth. The participants visited dentist only in emergency, and their oral health knowledge is low

“Making our job hospitable” – Assessment of job-crafting behavior among dental academic faculty in South India

Introduction: Employees are regularly offered opportunities to make their work more appealing and rewarding. These opportunities might be as simple as making fine changes to their daily tasks to boost happiness and to connect with more people at vocation. Hence, an attempt is made to assess job-crafting behavior among the dental academic faculty. Materials and Methods: A cross-sectional study was conducted among dental academic faculty from five dental colleges. Job Crafting Questionnaire (JCQ) was used to assess the job-crafting behavior. Mean scores were calculated for different domains of JCQ. Gender differences were analyzed using Student's “t-” test and one-way ANOVA to test the difference between different academic positions of the faculty members. Results: A total of 228 dental faculty members with a mean age of 34.43 ± 6.13 years participated in the study. The mean value of job-crafting behavior was found to be highest among female faculty (60.07 ± 8.38) and professors (61.35 ± 8.30). Male faculty scored higher in task-crafting domain and female faculty scored higher in both cognitive- and relational-crafting domains. The professors scored highest in all the three domains of job-crafting behavior as compared to that of senior lecturers and readers. Conclusion: Job crafting is an effectual workplace intervention, where employees assume an active role in shaping their work experience to enhance their job satisfaction and well-being. The overall score of job-crafting behavior was found to be highest among both professors and female faculty members. Male faculty members scored higher in task-crafting domain. With regard to individual domains, the participants scored highest in cognitive crafting followed by task and relational crafting