Monolithically Integrated Acoustic Resonators on CMOS for Radio-Frequency Circuit Applications

Wireless communication circuits rely on the use of high-quality passive elements (inductor-capacitor resonant tanks) for the implementation of selective filters and high-purity frequency references (oscillators). Typically available CMOS, on-chip passives suffer from high losses, primarily inductors, and consume large areas that cannot be populated by transistors leading to a significant area penalty. Mechanical resonators exhibit significantly lower losses than their electrical counterparts due to the reduced parasitic loss mechanisms in the mechanical domain. Efficient transduction schemes such as the piezoelectric effect allow for simple electrical actuation and read-out of such mechanical resonators. Piezoelectric thin-film bulk acoustic resonators (FBARs) are currently among the most promising and widely used mechanical resonator structures. However, FBARs are currently only available as off-chip components, which must be connected to CMOS circuitry through wire-bonding and flip-chip schemes. The use of off-chip interfaces introduces considerable parasitics and significant limitations on integration density. Monolithic integration with CMOS substrates alleviates interconnect parasitics, increases integration density and allows for area sharing whereby FBARs reside atop active CMOS circuitry. Close integration of FBARs and CMOS transistors can also enable new circuit paradigms, which simultaneously leverage the strengths of both components. Described here, is a body of work conducted to integrate FBAR resonators with active CMOS substrates (180nm and 65nm processes). A monolithic fabrication method is described which allows for FBAR devices to be constructed atop the backend small CMOS dies through low thermal-budget (< 300°C) post-processing. Stand-alone fabricated devices are characterized and the extracted electrical model is used to design two oscillator chips. The chips comprise amplifier circuitry that functions along with the integrated FBARs to achieve oscillation in the 0.8-2 GHz range. The chips also include test structures to assess the performance of the underlying CMOS transistors before and after the resonator post-processing. A successful FBAR-CMOS oscillator is demonstrated in 65nm CMOS along with characterization of FBARs built on CMOS. The approach presented here can be used for experimenting with more complex circuits leveraging the co-integration of piezoelectric resonators and CMOS transistors

FREQUENCY OF INTESTINAL PARASITIC INFECTIONS AMONG SCHOOLCHILDREN IN IBB CITY-YEMEN

Objectives:&nbsp; Intestinal parasitic infections are widely distributed and remain one of the most health problems in Yemen. This is a cross-sectional study aimed to determine the prevalence of intestinal parasitic infection and associated factors among schoolchildren in Ibb City, Yemen. Methods:&nbsp; A total of 300 stool samples were collected from schoolchildren between January to April 2018 and examined by direct smear and formalin ether concentration techniques. Results: &nbsp;The result showed that 62.7% were positive for intestinal parasites, with a higher frequency of single than multiple infections (85.1 vs. 14.36%, respectively). Also, 85.64% were infected by protozoa whereas 14.36% infected by helminths. The prevalence of infection was 61.70% for Entameba histolytica, 23.94% for Giardia lamblia, 7.45% for Ascaris lumbricoides, 4.3% for Hymenolepis nana, and 2.61% for Enterobius vermicularis. Moreover, the highest prevalence of E. histolytica, G. lamblia, and A. lumbricoides was within group aged 9-12 years. H. nana was between age groups of 9-12 and 13-16 years while E. vermicularis was found among 5-8 and 9-12 years. In addition, females were 69% infected significantly higher than males 54.55%. Besides, the various signs and symptoms associated with intestinal infections have been documented. Conclusion:&nbsp; High prevalence of intestinal infection was documented among schoolchildren drinking from cistern water, poor hygiene practices, poor food sanitation, non-swimming, and non-previously treated for Schistosoma parasite. High frequency of intestinal parasitic infection between schoolchildren in the study area requires more effort to implement the appropriate programmers that warrant to control and prevention the prevalence of intestinal parasitosis. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Peer Review History: Received 1 March 2020; Revised 7 April; Accepted 3 May, Available online 15 May 2020 Academic Editor: Ahmad Najib, Universitas Muslim Indonesia,&nbsp; Indonesia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 8.0/10 Reviewer(s) detail: Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, [email protected] Hebatallaha A&nbsp; Moustafa, Ain Shams University, Egypt, [email protected] Similar Articles: COCCIDIAN INTESTINAL PARASITES AMONG CHILDREN IN AL-TORBAH CITY IN YEMEN: IN COUNTRY WITH HIGH INCIDENCE OF MALNUTRITIO

VULVOVAGINAL CANDIDIASIS PREVALENCE AMONG PREGNANT WOMEN IN DIFFERENT HOSPITALS IN IBB, YEMEN

&nbsp;Background and aims: Candida species are opportunistic yeasts that affect the genital urinary tract that causes vulvovaginal candidiasis in the most females, particularly in developing countries. This work aims to find the prevalence of vulvovaginal candidiasis among pregnant women in Ibb, Yemen. Material and methods: Two hundred and eighteen samples of females attending outpatient obstetrics and gynecology clinics were chosen from several hospitals (Al-Thawra, Maternity and Childhood Center, Maternal Reproductive Health Center, and Nasser General Hospital) located in Ibb, from December 2019 to March 2020. The laboratory works were performed in the microbiology department of Al-Thawra Hospital, Ibb. Vaginal swabs were cultivated on Sabouraud dextrose agar, then the species of Candida identification and anti-fungal sensitivity tests were performed regarding the standard procedure of microbiology. Results: The findings revealed that out of 218 cases, 134 (61.5%) were infected with Candida species, and the rate of candidiasis was higher among women coming from rural areas than among women in urban areas; and in the age group 28-37 years. C. albicans (61.2%) were the most prevalent species followed by C. tropicalis (21.64%), C. glabrata (11.19%), and C. kefyr (5.97%). Susceptibility tests showed that the most isolated Candida species were sensitive to nystatin (94.8), fluconazole (91.04%), amphotericin B (88.80%), voriconazole (78.35%), clotrimazole (75.37%), ketoconazole (73.13%), and itraconazole (69.40%). Conclusion: It can be concluded that Candida vaginitis is very common among pregnant women, and the tested anti-fungal agents continue to be effective against all isolates of Candida species. In contrast, there was a slight increase resistant against itraconazole, ketoconazole, clotrimazole, and voriconazole which raises concern about a rise in Candida species that are resistant to these drugs. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Peer Review History: Received 27 June 2020; Revised 15 July; Accepted 12 August, Available online 15 September 2020 Academic Editor: Dr. Muhammad Zahid Iqbal, AIMST University, Malaysia, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reviewer's Comments: Average Peer review marks at initial stage: 6.5/10 Average Peer review marks at publication stage: 8.5/10 Reviewer(s) detail: Ashwaq Ali Hezam Al-Arossi, Sana'a University, Yemen, [email protected] Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, [email protected] Dr. A.A. Mgbahurike, University of Port Harcourt, Nigeria, [email protected] Similar Articles: PREVALENCE AND RISK FACTORS ASSOCIATED WITH VULVOVAGINAL CANDIDIASIS DURING PREGNANCY IN SANA'A, YEMEN TETANUS IMMUNIZATION AMONG PREGNANT WOMEN: COVERAGE RATE AND RATE OF PROTECTION AT TIME OF DELIVER

EFFECT OF MOST COMMON ANTIBIOTICS AGAINST BACTERIA ISOLATED FROM SURGICAL WOUNDS IN ADEN GOVERNORATE HOSPITALS, YEMEN

Objective: The increased antibiotics resistance of pathogenic bacteria isolated from surgical wound is the major health threats challenge the patients especially in developing countries like Yemen. This work was aimed to determine and identify the bacteria associated with surgical wound infections and their resistance to commonly used antibiotics. Methods: One hundred and twenty swabs were sampled from surgical wound patients at Aden City, Yemen. The pathogenic bacteria were isolated and identified according to standard microbiological methods. Also, antibiotic susceptibility tests were determining by using Kirby-Bauer disc diffusion technique. Results: The results showed that out of 120 samples, 68 (56.67%) showed bacterial growth. It was found that the most isolated bacteria was Sylococcus aureus 27 (39.70%) followed by Escherichia coli 19(27.94%), Pseudomonas aeruginosa 13 (19.12%), and Proteus mirabilis 9 (13.24%). All isolated bacteria were recorded to be extremely resistant to the most tested antibiotics. S. aureus was reported to be susceptible to cefotaxime, vancomycin, and ciprofloxacin and highly resistant to ceftazidime, nalidixic acid, erythromycin, and tetracycline. The E. coli isolates showed resistance (100%) to vancomycin and tetracycline and moderately sensitive to ceftazidime and gentamycin. P. aeruginosa showed from high to moderate resistance to most tested antibiotics except gentamycin and cefotaxime. Most of P. mirabilis isolates were sensitive to ceftazidime, cefotaxime, ciprofloxacin, and gentamycin and highly resistant to amoxicillin, erythromycin, and vancomycin. Conclusion: The current study findings that the reduced sensitivity of isolated bacteria to commonly used antibiotics is an alarming and threat upsurge of infections caused by antibiotic-resistant bacteria. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp; Peer Review History: Received 27 January 2020; &nbsp;&nbsp;Revised 15 February; Accepted 1 March, Available online 15 March 2020 Academic Editor: Dr. Amany Mohamed Alboghdadly, Princess Nourah bint abdulrahman university, Riyadh, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Dr. Mujde Eryilmaz,&nbsp;Ankara University,Turkey, [email protected] Rola Jadallah,&nbsp;Arab American University, Palestine,&nbsp;[email protected] Similar Articles: BACTERIAL CONTAMINATION OF DIALYSIS WATER AND DIALYSATE AT MUKALLA ARTIFICIAL KIDNEY CENTER IN MUKALLA CITY - HADHRAMAUT - YEMEN: RATE OF CONTAMINATION AND SENSITIVITY OF BACTERIAL ISOLATES TO ANTIBIOTICS BIOFILM FORMATION AND ANTIBIOTIC SUSCEPTIBILITY OF UROPATHOGENS IN PATIENTS WITH CATHETER ASSOCIATED URINARY TRACT INFECTIONS IN IBB CITY -YEMEN ANTIMICROBIAL ACTIVITIES FOR HADHRAMI HONEY ON GROWTH OF SOME PATHOGENIC BACTERI

SEROPREVALENCE OF DENGUE FEVER VIRUS AMONG SUSPECTED PATIENTS IN TAIZ GOVERNORATE-YEMEN

Background: Dengue Fever virus (DENV) considers one of the most important mosquito-borne viral diseases in the world and it is endemic in more than 100 countries. Objective: This study aimed to determine the seroprevalence of DENV infection among suspected patients and to investigate some associated risk factors with dengue fever infection in Taiz governorate, Yemen. Methods: This study was cross-sectional, descriptive, and experimental, combining the use of a structured questionnaire and analysis of serum samples obtained from 300 suspected patients attending at many hospital and clinic centers in Taiz during the period from July to November 2016. The serum samples were tested for anti-dengue immunoglobulin (IgM) and (IgG) by Enzyme-linked Immunosorbent Assay (ELIZA). Results: Out of 300 suspected febrile cases, it was found that 49(16.3%), 68(22.7%), and 17(5.7%) cases were showed positive for the IgM, IgG, and both IgM and IgG antibodies, respectively, while 166 (55.3%) cases were negative. The incidence rate was more in males than in females. The most affected age group with dengue fever infection were (21–30) years. Dengue Fever was more frequent among patients coming from the urban area, having secondary school, and low-income status people. Also, there was statistical significant between DENV infections with a place of residencyand gender (P&lt;0.05) and not-statistical significance between DENV infections and other factors (P&gt;0.05). Conclusion: Taiz governorate become one of the endemic governorates in Yemen particularly the Taiz city which should be brought to the attention of public health authorities. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; Peer Review History: Received: 5 September 2020; Revised: 15 October; Accepted: 26 October, Available online:&nbsp;15 November 2020 Academic Editor: Prof. Kumud Upadhyaya,&nbsp;Kumaon University, Nainital, UK, India,&nbsp;[email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.0/10 Reviewer(s) detail: Dr. Rola Jadallah, Arab American University, Palestine, [email protected] Dr. Rawaa Souhil Al-Kayali, Aleppo University, Syria, [email protected] Similar Articles: QUALITY ASSESSMENT OF DIFFERENT BRANDS OF PARACETAMOL TABLETS IN YEMENI MARKE

Impact of Virtual Reality Goggles as a Distraction Technique on the Pain Perception and Heart Rate of Pediatric Dental Patients

Objectives: To assess the impact of virtual reality (VR) glasses on pain perception and heart rate during inferior alveolar nerve block in pediatric patients. Methods: This quasi-experimental investigation was conducted at a dental hospital (University College of Dentistry), Lahore, Pakistan from June to February 2022. The study included healthy children aged four to twelve years who needed dental treatment involving an inferior alveolar nerve block. The distraction was done using VR glasses. Participants were arbitrarily divided into two groups, one with VR and the other without VR. The patients' behavior was recorded during the nerve block using the face, legs, activity, cry, and consolability (FLACC) behavioral pain assessment scale. The Pulse rate was monitored before, during, and after the procedure. Results: Of the total 68 participants, the median age was 8 (7 – 9) years. There were 36 (52.9%) patients in the non-VR group and 32 (47.1%) patients in the VR group. The median FLAACC score was found to be significantly lower in the VR group as compared to non-VR group i.e., 1.0 (1.0 - 2.0) vs. 5.0 (4.0 - 5.0) (p-value <0.001) respectively. Both groups showed significant median differences in face (p-value 0.008), legs (p-value <0.001), activity (p-value <0.001), crying (p-value <0.001), and consolability (p-value <0.001) scores. During treatment, the heart rate of VR participants was found to be significantly lower than the non-VR group i.e., 93.0 (90.0 – 96.0) vs. 100.0 (87.7 – 104.0) (p-value 0.044) respectively

Impact of Virtual Reality Goggles as a Distraction Technique on the Pain Perception and Heart Rate of Pediatric Dental Patients

Objective: To assess the impact of virtual reality (VR) glasses on pain perception and heart rate during inferior alveolar nerve block in pediatric patients. Methods: This quasi-experimental investigation was conducted at a dental hospital (University College of Dentistry), Lahore, Pakistan from June to February 2022. The study included healthy children aged four to twelve years who needed dental treatment involving an inferior alveolar nerve block. The distraction was done using VR glasses. Participants were arbitrarily divided into two groups, one with VR and the other without VR. The patients' behavior was recorded during the nerve block using the face, legs, activity, cry, and consolability (FLACC) behavioral pain assessment scale. The Pulse rate was monitored before, during, and after the procedure. Results:Of the total 68 participants, the median age was 8 (7 – 9) years. There were 36 (52.9%) patients in the nonVR group and 32 (47.1%) patients in the VR group. The median FLAACC score was found to be significantly lower in the VR group as compared to the non-VR group i.e., 1.0 (1.0 - 2.0) vs. 5.0 (4.0 - 5.0) (p-value <0.001) respectively. Both groups showed significant median differences in face (p-value 0.008), legs (p-value <0.001), activity (p-value <0.001), crying (p-value <0.001), and consolability (p-value <0.001) scores. During treatment, the heart rate of VR participants was found to be significantly lower than the non-VR group i.e., 93.0 (90.0 – 96.0) vs. 100.0 (87.7 – 104.0) (p-value 0.044) respectively. Conclusion: The study revealed that the use of VR goggles as a distraction method demonstrated a significant reduction in pain perception and heart rate

Impact of Virtual Reality Goggles as a Distraction Technique on the Pain Perception and Heart Rate of Pediatric Dental Patients

Objective: To assess the impact of virtual reality (VR) glasses on pain perception and heart rate during inferior alveolar nerve block in pediatric patients. Methods: This quasi-experimental investigation was conducted at a dental hospital (University College of Dentistry), Lahore, Pakistan from June to February 2022. The study included healthy children aged four to twelve years who needed dental treatment involving an inferior alveolar nerve block. The distraction was done using VR glasses. Participants were arbitrarily divided into two groups, one with VR and the other without VR. The patients' behavior was recorded during the nerve block using the face, legs, activity, cry, and consolability (FLACC) behavioral pain assessment scale. The Pulse rate was monitored before, during, and after the procedure. Results:Of the total 68 participants, the median age was 8 (7 – 9) years. There were 36 (52.9%) patients in the nonVR group and 32 (47.1%) patients in the VR group. The median FLAACC score was found to be significantly lower in the VR group as compared to the non-VR group i.e., 1.0 (1.0 - 2.0) vs. 5.0 (4.0 - 5.0) (p-value <0.001) respectively. Both groups showed significant median differences in face (p-value 0.008), legs (p-value <0.001), activity (p-value <0.001), crying (p-value <0.001), and consolability (p-value <0.001) scores. During treatment, the heart rate of VR participants was found to be significantly lower than the non-VR group i.e., 93.0 (90.0 – 96.0) vs. 100.0 (87.7 – 104.0) (p-value 0.044) respectively. Conclusion: The study revealed that the use of VR goggles as a distraction method demonstrated a significant reduction in pain perception and heart rate

DISTRIBUTION AND RISK FACTORS FOR GIARDIA LAMBLIA AMONG CHILDREN AT AMRAN GOVERNORATE, YEMEN

Objective: The widespread prevalence of Giardiasis is a public health problem worldwide, and it is also common among Yemeni children. Hence, this work aims to identify the prevalent Giardia lamblia infection and risk factors among children admitted to health care centers in Amran governorate in Yemen. Methods:&nbsp;Three hundred and thirty-four stool samples were collected from infected children between March and July 2019 and the parasite is identified by light-microscope according to standard parasitology methods. Also, relevant data was obtained using a designed questionnaire. Results: The results showed that 181 cases (54.2%) were infected with G.&nbsp;lamblia infection. 57.5% of the infected children were from urban areas, while 42.5% of the cases were from rural areas. The highest incidence of G. lamblia was 60.3% among males compared to 47.5% among females. The results for age, residents and male children aged 8-14 years in both urban and rural areas recorded the highest prevalence of G.&nbsp;lamblia infection while the lowest was among females between 1 and 7 years and 8-14 years old, respectively, in the rural and urban area. Conclusion: In conclusion, as described in this work, multisectoral efforts are needed that include hygiene practices, personal hygiene habits, the provision of safe drinking water and the provision of sanitation systems to efficiently reduce this infection from all governorates of Yemen. &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Peer Review History: Received 22 May 2020; Revised 14 June; Accepted 3 July, Available online 15 July 2020 Academic Editor: Dr. Nuray Arı, Ankara University, Turkiye, [email protected] UJPR follows the most transparent and toughest ‘Advanced OPEN peer review’ system. The identity of the authors and, reviewers will be known to each other. This transparent process will help to eradicate any possible malicious/purposeful interference by any person (publishing staff, reviewer, editor, author, etc) during peer review. As a result of this unique system, all reviewers will get their due recognition and respect, once their names are published in the papers. We expect that, by publishing peer review reports with published papers, will be helpful to many authors for drafting their article according to the specifications. Auhors will remove any error of their article and they will improve their article(s) according to the previous reports displayed with published article(s). The main purpose of it is ‘to improve the quality of a candidate manuscript’. Our reviewers check the ‘strength and weakness of a manuscript honestly’. There will increase in the perfection, and transparency. Received file:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Reviewer's Comments: Average Peer review marks at initial stage: 6.0/10 Average Peer review marks at publication stage: 7.5/10 Reviewer(s) detail: Prof. Dr. Hassan A.H. Al-Shamahy, Sana'a University, Yemen, [email protected] Dr. Mahmoud S. Abdallah, University of Sadat city, Egypt, [email protected] Similar Articles: PREVALENCE OF MALOCCLUSION AMONG YEMENI CHILDREN OF PRIMARY SCHOOLS COCCIDIAN INTESTINAL PARASITES AMONG CHILDREN IN AL-TORBAH CITY IN YEMEN: IN COUNTRY WITH HIGH INCIDENCE OF MALNUTRITION OCCLUSAL CHARACTERISTICS OF THE PRIMARY DENTITION AMONG A SAMPLE OF YEMENI PRE-SCHOOL CHILDREN EVALUATION OF THE IMMUNE RESPONSE TO POLIO VACCINE IN MALNOURISHED CHILDREN IN SANA'A CIT