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All Journal JBIO: jurnal biosains (the journal of biosciences) Jurnal Pelita Pendidikan Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains ABDI MOESTOPO: Jurnal Pengabdian pada Masyarakat Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Khairiza Lubis
Universitas Negeri Medan
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Education Engineering Environmental Science Immunology & microbiology Medicine & Pharmacology Social Sciences

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PROFILE OF HISTOPATHOLOGY OF CERVICAL CANCER TISSUES IN PATIENTS OF THE DR PIRNGADI MEDAN HOSPITAL Sry Astuty Hasugian; Khairiza Lubis; Hau V Doan
JBIO: jurnal biosains (the journal of biosciences) Vol 6, No 3 (2020): Jurnal Biosains
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v6i3.19607

Abstract

Cervical cancer is a malignant neoplasm that happened in the cervical area.  Several types of cervical cancer that usually happens in women such as squamous cell carcinoma (SCC), adenocarcinoma, adenosquamous carcinoma and neuroendocrine carcinoma. Therefore, this study aims to determine a descriptive description of the histopathological profile of cervical cancer tissue from patients that registered in the Anatomical Pathology Laboratory at the DR. Pirngadi Medan Hospital, in the period of 2019. The type of our research is retrospective descriptive with the sampling technique, namely total sampling. The sample used was cervical cancer tissue obtained from the biopsy and surgery on patients who were registered from January 2019 to December 2019, totaling 18 samples. Based on the descriptive histopathological description, we found three types of cervical cancer tissue: squamous cell carcinoma (55.5%), adenocarcinoma (38.8%) and adenosquamous carcinoma (5.5%). The neuroendocrine carcinoma type did not find in this present study. Of three types of these cervical cancer, we got that cervical cancer patients are women aged between 36-72 years, with an average age of 54 years.
FREQUENCY ANALYSIS AND EVALUATION OF THE IMPLEMENTATION OF CLASS X BIOLOGY PRACTICES IN SENIOR HIGH SCHOOL Nadia Vermoni Suci; Khairiza lubis; Marlinda Nilan Sari Rangkuti
Jurnal Pelita Pendidikan Vol 9, No 3 (2021): Jurnal Pelita Pendidikan
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpp.v9i3.22404

Abstract

This study aims to determine students' frequency, evaluation, and perceptions on the implementation of practicum in SMA Negeri in Rantauprapat City. The sample in this study were 3 teachers and students of class X MIA at SMA Negeri 1 Rantau Utara, SMA Negeri 2 Rantau Utara and SMA Negeri 1 Rantau Selatan totaling 107 people taken by random sampling. The data analysis technique used is a quantitative descriptive analysis technique, which describes and explains the data based on the field. This research is an explorative survey, namely by observing, interviewing, and exploring. The analysis results show that the average frequency of practicum implementation is 66%, which is quite often done. The laboratory conditions in the three sample schools were classified as very good (83.18%). The student interest in laboratory activities is also classified as very good (86.14%), but some schools, namely SMA Negeri 1 Rantau Utara and SMA Negeri 2 Rantau Utara, experienced problems in the time of practicum implementation (70.44%). The preparation and implementation of the practicum have been carried out very well (88.07%), with 83.90% of reports and evaluations carried out for each practicum activity. However, although it is classified as very good, the average evaluation value is only 59.60, which is quite enough.
Toxicological assessment of lemongrass (Cymbopogon nardus L.) liquid waste: Biolarvicides againts the third instar larvae of Aedes aegypti Putri Pameswari; Khairiza Lubis
Jurnal Biolokus: Jurnal Penelitian Pendidikan Biologi dan Biologi Vol 5, No 2 (2022): December
Publisher : Universitas Islam Negeri Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/biolokus.v5i2.1610

Abstract

Liquid waste generated from the distillation process of lemongrass (Cymbopogon nardus L.) in a relatively short time will cause a foul odor, ammonia or phosphine that occurs due to the fermentation process. These problems can be minimized by reusing liquid waste of lemongrass (C. nardus L.) into biolarvicides. This study aims to determine the value of Lethal Concentration 50 (LC50) from the liquid waste of lemongrass (C. nardus L.) which can kill the third instar larvae of A. aegypti mosquitoes for 24 hours. The liquid waste of lemongrass (C. nardus L.) used in this study is waste obtained from the lemongrass (C. nardus L.) distillery located on Jalan Masjid Ulayat, Percut Sei Tuan District, Deli Serdang Regency, North Sumatra. A total of 10 mosquito larvae of A. aegypti instar III were used for each different concentration of 6,982%, 7,607%, 8,287%, 9,027% and 9,833%. Each concentration consisted of five repetitions and was observed for 24 hours. After 24 hours, larvae that died were analyzed using probit analysis via SPSS 25. The results showed that the LC50 of lemongrass (C. nardus L.) liquid waste can kill larvae for 24 hours was 8,763%.
Pemanfaatan Limbah Hasil Sampingan Penyulingan Minyak Serai Wangi Menjadi Pupuk Organik Dan Larvasida Mufti Sudibyo; Khairiza Lubis; Puji Prastowo; Onggal Sihite
ABDI MOESTOPO: Jurnal Pengabdian Pada Masyarakat Vol 6, No 2 (2023): Juli 2023
Publisher : Universitas Prof. Dr. Moestopo (Beragama)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32509/abdimoestopo.v6i2.2402

Abstract

Penyulingan serai wangi mengalami peningkatan seiring dengan meningkatnya permintaan dari konsumen. Peningkatan jumlah limbah dari hasil sampingan penyulingan minyak serai menimbulkan permasalahan bagi lingkungan. LPPM Universitas Negeri Medan (Unimed) melalui kegiatan Program Kemitraan Masyarakat menjalin bekerja sama dengan Kelompok Tani penyulingan minyak serai yang berada di Desa Sampali, Kecamatan Percut Sei Tuan, Kabupaten Deli Serdang untuk memberikan solusi. Solusi yang diberikan berupa pelatihan dan pendampingan dalam pengolahan limbah padat serai wangi menjadi kompos. Limbah padat hasil sampingan penyulingan minyak serai (daun serai wangi) dijemur untuk mengurangi kadar airnya. Setelah kering kemudian daun di cacah dan ditambahkan EM4. Sementara limbah cair hasil sampingan penyulingan minyak serai langsung digunakan sebagai larvasida dengan konsentrasi 0%, 2%, 3%. 4%, 5% dan 6%.  Kompos yang dihasilkan memerlukan waktu lebih kurang 45 hari dengan tekstur sebagai berikut: berwarna hitam, gembur, tidak beraroma, dan daun serai belum terurai secara sempurna. Konsentrasi larvasida yang tepat untuk membasmi larva nyamuk Culex sp instar III adalah 6%, dengan kematian larva sebanyak 100% dalam 24 jam pengujian. Solusi yang diberikan ini dapat mengatasi permasalahan yang dihadapi oleh Kelompok Tani dan juga meningkatkan ilmu pengetahuan mereka serta meningkatkan nilai ekonomi dari limbah-limbah tersebut.
Pengembangan E-LKPD Berbasis PBL Terintegrasi AI pada Materi Klasifikasi Makhluk Hidup untuk Meningkatkan HOTS dan KPS Eunike Manurung; Khairiza Lubis; Melva Silitonga
BIOEDUSAINS:Jurnal Pendidikan Biologi dan Sains Vol. 8 No. 4 (2025): Bioedusains: Jurnal Pendidikan Biologi dan Sains
Publisher : Institut Penelitian Matematika, Komputer, Keperawatan, Pendidikan dan Ekonomi (IPM2KPE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31539/dtb8fx98

Abstract

This study aims to develop and evaluate the feasibility and effectiveness of an Electronic Student Worksheet (E-LKPD) based on Problem-Based Learning (PBL) integrated with Artificial Intelligence (AI) on the topic of classification of living organisms, to enhance students’ Higher Order Thinking Skills (HOTS) and Science Process Skills (SPS). The research employed a Research and Development (R&D) method using the 4-D model (Define, Design, Develop, Disseminate). Effectiveness testing was conducted through a quasi-experimental design using a pretest-posttest control group. Data were analyzed using independent sample t-test and N-Gain analysis. The validation results indicated that the E-LKPD was in the “highly feasible” category. The t-test results for the pretest showed no significant difference between the experimental and control groups (t = 0.031; p = 0.975), while the posttest results revealed a significant difference (t = 7.403; p = 0.000). The N-Gain scores for HOTS and SPS were 0.61 and 0.68, respectively, both categorized as moderate and effective. It is concluded that the PBL-based E-LKPD integrated with AI is feasible and effective for improving students’ HOTS and SPS in biology learning. Keywords: AI, E-LKPD, HOTS, SPS, Problem Based Learning
Growth pattern and otolith size of Tor spp. (Cyprinidae) Khairiza Lubis; Lydia Ruth Hasianna Manullang; Ferosalina Natasia Saragih; Debi Rausana Nasution; Mufti Sudibyo; Elida Hafni Siregar; Agung Setia Batubara
Depik Vol 14, No 1 (2025): MARCH 2025
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.14.1.42028

Abstract

The threat of decreasing populations of Tor species continues to increase due to intensive fishing, habitat destruction and infrequent cultivation efforts. Monitoring of this group of fish must be carried out routinely to reveal the population conditions of fish. This research aims to reveal the population conditions of fish through an analytical approach to the length-weight relationship and fish otolith size. All fish samples were then taken for otoliths to measure their size and analyzed further using a scanning electron microscope (SEM). The research was conducted in the Tangkahan River, North Sumatra, Indonesia from January-March, 2023. The results showed that 43 samples of T. douronensis, 34 samples of T. tambra, and 24 samples of T. tambroides had b values of 2.853, 2.757, and 2.353, respectively. The b value in this study indicated that the fish had a negative allometric growth pattern. The size of the otoliths of the three Tor species shows that T. tambra has the highest length (the distance measured from the anterior to the posterior of the of sagitta otolith) on average reaching 9.31 mm, while T. tambroides and T. douronensis only reach 1.53 mm and 1.83 mm. The results were confirmed by ANOVA showing significant differences (P 0.05) in the mean value of otolith size based on Tor species, where the otolith size of T. tambra was significantly different compared to the other two species. The condition of Tor species in the Tangkahan River has experienced ecological pressure. This indication was concluded from the results of the analysis of the length-weight relationship of fish which showed b value 3 (negative allometric). The results show that the characteristics and size of the otoliths can differentiate Tor species and facilitate identification efforts related to management and conservation.Keywords:Habitat DestructionNegative AllometricAnterior of Sagitta OtolithPosterior of Sagitta Otolith
Co-Authors Batubara, Agung Setia Debi Rausana Nasution Elida Hafni Siregar Eunike Manurung Ferosalina Natasia Saragih Hau V Doan Lydia Ruth Hasianna Manullang Marlinda Nilan Sari Rangkuti Melva Silitonga Mufti Sudibyo Nadia Vermoni Suci Onggal Sihite Puji Prastowo Putri Pameswari Sry Astuty Hasugian