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Cybercrime: An Empirical Study of its Impact on Society- A Case Study of Chemistry Students Al-Ani, Ahmed; Yousif, Ahmed A; Ahmed, Waled Abdo; Yousif, Emad A
Journal of Educational Chemistry (JEC) Vol 6, No 1 (2024)
Publisher : Chemistry Education Department

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2024.6.1.17010

Cybercrime is considered one of the most significant crimes effecting people and society. Computer network are involved in this type of crime, with various hackers participating. Through such crime, identities and much information of the victims are stolen. Many students, especially international students and young individuals, fall victim to this fraud. This study focuses on raising awareness among people to avoid scammer’s link or unknown websites that seek to obtain their information. This will be achieved by organizing different questionnaires by teaching staff at one of the Iraqi Universities in this field, to be answered by undergraduate and postgraduate students. The statistical analysis conducted on this group showed that students are more educated and aware, making them less likely to fall victim to these types of crime. This is a result of the knowledge and skills these students acquired through technology and various sessions and training at universities or other resources.

Performance of Nickel Foam (NF) Cathode in Microbial Electro-synthesis System for Generating Methane and Acetate Production from CO2 Satar, Ibdal; Ahmed, Waled Abdo; Juwitaningtyas, Titisari; Syamsuddin, Arief; Majlan, Edy Haryanto; Bakar, Mimi Hani Abu; Kim, Byung Hong
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 2 (2025): June
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.2.68-78

The cathode material is one of the key factors in enhancing the overall performance of microbial electrosynthesis system (MES). Nickel-based materials are the best option for cathodes in MES due to their excellent catalytic activity. This study aims to evaluate the performance of nickel foam (NF) as self-cathode material in MES for acetate production from CO2. A biocatalyst at the cathode was provided using a mixed-culture of anaerobic sludge from palm oil mill effluent (POME). The field emission scanning electron microscopy (FE-SEM) was used to analyze the cathode surface morphology, while high-performance liquid chromatography (HPLC) was used to quantify the volatile fatty acids (VFAs) in the effluent. The results indicate that the self-cathode NF exhibited excellent performance, achieving an acetate production rate (QAcetate) of 46.0 mM/d, compared to 41.7 mM/d with a graphite felt (GF) cathode at a cathode potential of -0.8 V. Additionally, the self-cathode NF in the MES system demonstrated a coulombic efficiency (CE) of approximately 22.9%. Moreover, the type of cathode material and the microbial community attached to the cathode surface significantly influenced MES performance.

Cybercrime: An Empirical Study of its Impact on Society- A Case Study of Chemistry Students Al-Ani, Ahmed; Yousif, Ahmed A; Ahmed, Waled Abdo; Yousif, Emad A
Journal of Educational Chemistry (JEC) Vol. 6 No. 1 (2024)
Publisher : Department of Chemistry Education, Faculty of Science and Technology, Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/jec.2024.6.1.17010

Cybercrime is considered one of the most significant crimes effecting people and society. Computer network are involved in this type of crime, with various hackers participating. Through such crime, identities and much information of the victims are stolen. Many students, especially international students and young individuals, fall victim to this fraud. This study focuses on raising awareness among people to avoid scammer’s link or unknown websites that seek to obtain their information. This will be achieved by organizing different questionnaires by teaching staff at one of the Iraqi Universities in this field, to be answered by undergraduate and postgraduate students. The statistical analysis conducted on this group showed that students are more educated and aware, making them less likely to fall victim to these types of crime. This is a result of the knowledge and skills these students acquired through technology and various sessions and training at universities or other resources.

The Impact of Drying Temperature and Duration on the Physicochemical and Sensory Properties of Cascara Powder Enriched with Emprit Ginger (Zingiber officinale var. amarum) Satar, Ibdal; Yuniarti, Adinda; Yusof, Nurhayati; Ahmed, Waled Abdo
Journal of Agri-Food Science and Technology Vol. 6 No. 4 (2025): December
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v6i4.12287

Cascara, derived from dried coffee pulp, is abundant in polyphenols such as catechin and epicatechin, offering substantial potential for diverse uses. Enriching cascara powder (CP) with emprit ginger (EG) is an ideal innovation, as both are rich in antioxidants, enhancing sensory attributes and health benefits. This study contributed to the effect of different drying temperatures and durations on the physicochemical and sensory properties of CP with and without EG. This study utilized a completely randomized design (CRD) with two factors: drying temperature (45°C, 55°C, and 65 °C) and duration (24, 48, and 72 h). The physicochemical analysis included moisture content, ash content, pH, reducing sugars, total phenolic content, and antioxidant activity of RSA. Sensory evaluation assessed color, taste, and aroma. The results indicated that moisture, ash, pH, reducing sugar, and total phenol contents ranged from 3.82–7.45%, 3.59–10.79%, 4.26–6.51, 14.78–58.51%, and 10.34–50.37 mg GAE/g, respectively. The antioxidant activity of RSA ranged from 45.59% to 87.73%. The sensory tests showed that all formulations were liked by the panelists. Based on physicochemical and sensory properties, the F3t1 formulation with EG was of the best quality. The optimal drying temperature and duration were 45°C and 24 h, with 75% CP and 25% EG (F3t1+J1). This work significantly contributes to the field of food technology by offering valuable insights into the utilization of coffee by-products and the incorporation of bioactive-rich compounds to create innovative, health-focused functional beverages.

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