Comprehensive Analysis of Zinc Oxide and Titanium Dioxide in Mineral Sunscreen Formulations

The inorganic materials of zinc oxide and titanium dioxide were analyzed through in vitro and physical tests to show their significant role in a sunscreen formulation scope. On-market formulas and lab-made prototypes were tested together to understand the relationship of finalized products and the formulation creation process, while highlighting sustainability efforts within personal care and cosmetic formulations. With a UV Spectrophotometer, Sun Protection Factor (SPF), broad spectrum UVA/UVB protection, and critical wavelength were explored, while skin-like substrate and a UV light visualized the differences between formulas

Electrochemical Studies of Antimony(III) and Antimony(V) in Molten Mixtures of Aluminum Chloride and Butylpyridinium Chloride

Electrochemical studies of Sb, Sb(III), and Sb(V) have been camed out in molten mixtures of AlC13 and N-1-butylpyridinium chloride (BuPyCl) at 40 OC, as a function of melt composition. Analysis of measurements in the acidic melts indicates SbC12+ as the dominant species. The reduction of this species on glassy carbon exhibits irreversible behavior. In the basic melts, SbC14- and SbC1,- are believed to be the dominant species. The reduction of Sb(II1) to Sb on glassy carbon also showed irreversible behavior while its oxidation to Sb(W revealed a quasi-reversible behavior. No Sb(II1) oxidation was observed in the acidic melts

Security Life Cycle framework for Exploring & Prevention of Zero day attacks in Cyberterrorism

The rise of cyber terrorism poses a significant threat to governments, businesses, and individuals worldwide. Cyber terrorists use information technology to carry out attacks that range from simple hacking attempts to more sophisticated attacks involving malware, ransomware, and zero-day exploits. This paper aims to provide an in-depth understanding of cyber terrorism, with a special focus on zero-day attacks. As the world becomes more digitized and automated, it brings convenience to everyone\u27s lives. However, it also leads to growing concerns about security threats, including data leakage, website hacking, attacks, phishing, and zero-day attacks. These concerns are not only for organizations, businesses, and society, but also for governments worldwide. This paper aims to provide an introductory literature review on the basics of cyber-terrorism, focusing on zero-day attacks. The paper explores the economic and financial destruction caused by zero-day attacks and examines various types of zero-day attacks. It also looks at the steps taken by international organizations to address these issues and the recommendations they have made. Additionally, the paper examines the impact of these externalities on policymaking and society. As cyber-security becomes increasingly important for businesses and policymakers, the paper aims to delve deeper into this aspect, which has the potential to threaten national security, public life, and the economic and financial stability of developed, developing, and underdeveloped economies

An integrated public health approach for a successful strategy against HIV: The case of Swaziland

Swaziland is an inland country in the southern Africa with a population of less than 1.5 million. Human immunodeficiency virus (HIV) is the main public health concern in Swaziland as 27.2% of adults are living with HIV infection. Swaziland is known to have the highest prevalence of HIV infected people in the world. However, this might be changing soon as the incidents of new HIV infection are decreasing and the prevalence of HIV infection are stabilizing. This is due to the multiple well-implemented programs that are targeting the different components of HIV transmission including condom availability, HIV education, sex education, male circumcision, and pre-exposure prophylaxis. Although the prevalence of HIV is stabilizing, there are multiple gaps that need to be addressed by new programs to ensure that the prevalence remains stable and aim to decrease it in the future by providing the appropriate antiretroviral treatment and better access to healthcare. However, such programmes cannot be effective without improving the socio-economic and educational levels of people, understanding their beliefs and meeting their needs

Image registration and fusion

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1995.Includes bibliographical references (leaves 101-103).by Isam H. Habboush.M.S

Separation and Determination of Preservative Methylparaben in Insulin Preparations Using Gas Chromatography

In this search an improved gas chromatographic method was used for identification and typically quantitated for methylparaben(mp) which is used as preservative in insulin preparations.it was involved the optimal conditions for extraction mp from aqueous samples with ethyl acetate ,chloroform ,and toluene as extractants,then analyzed by gas chromatography(GC). Effects of each of extractants polarity, aqueous samples pH, phases (organic to aqueous) ratio, mixing time, polarity of stationary phases, and column temperature on efficiency of separation and determination of mp. were studied in this work. Synthetic sample which contained the same contents as a life sample was tested to omit interferings of other drug additives on analysis results. The extraction of mp. was (90-91)% with one batch of ethyl acetate and (99- 100)%with two batches of ethyl acetate at pH medium(1.5-2).also the non-polar stationary phase(OV-101) is the best choice for determining mp by GC. The concentration of mp. in insulin preparations was within the acceptable range(1.003mg/ml). The relative error (R.E) was ± (0,39-1.49)% and relative standard deviation(R.S.D) was (1.21)% for life samples

Decrease of Phenolic Preservatives in Insulin Preparations at Different Storing Conditions and after Ending their Expiry Date

Determination of phenolic compounds in insulin preparations includes extraction with ethyl acetate (phases ratio organic to aqueous is 1:5 with one batch or 1:10 with two batches) in acidic medium (PH =1.5-2), and then quantification by GC or UV spectrophotometric techniques. This study leads to ensure that the preservatives concentrations are effected by different conditions in the store of insulin preparations. The concentration of methyl paraben was (0.808)mgml after expiry date by (150-170) days . When the insulin preparations stored at freezing point for (9-10) days, the concentration of methyl paraben reduced to (0.37)mgml, and to (0)mgml , after (16-18)days at freezing point . Uv-Vis method was proposed and applied for drawing calibration curve at 272 nm. for mcresol which is used as preservative in insulin preparations. While methyl paraben was determined by GC technique

The Effect of Using the Integrating technology and 3E Learning Cycle in Implementation of Practical Activities on the Achievement of the Eighth-graders in Science

The study objective has been to seek the effect of integrating technology and the 3E Learning Cycle in implementing practical activities on the achievement of the eighth-graders in science and their attitudes towards using it. The study adopted a Quasi-experimental and Descriptive approach. The study participants consisted of (65) students divided into (32) students’ as an experimental group and (33) students as a control group. Pre-test, post-test, and questionnaire were used as the study instruments. The findings revealed that there were statistically significant differences between the experimental group and the control group in favor of the experimental group students. Furthermore, the results confirm that the experimental group students have positive attitudes toward their learning via integrating technology and the 3E Learning Cycle. They demonstrated statistically important amelioration following its implementation. The study recommends conducting further studies related to integrating technology with updated learning cycles on the E3 learning cycle

The Effect of Using the Integrating technology and 3E Learning Cycle in Implementation of Practical Activities on the Achievement of the Eighth-graders in Science

The study objective has been to seek the effect of integrating technology and the 3E Learning Cycle in implementing practical activities on the achievement of the eighth-graders in science and their attitudes towards using it. The study adopted a Quasi-experimental and Descriptive approach. The study participants consisted of (65) students divided into (32) students’ as an experimental group and (33) students as a control group. Pre-test, post-test, and questionnaire were used as the study instruments. The findings revealed that there were statistically significant differences between the experimental group and the control group in favor of the experimental group students. Furthermore, the results confirm that the experimental group students have positive attitudes toward their learning via integrating technology and the 3E Learning Cycle. They demonstrated statistically important amelioration following its implementation. The study recommends conducting further studies related to integrating technology with updated learning cycles on the E3 learning cycle