bluuebunny/crossref_metadata_2025 huggingface dataset:
Islamic Parenting dalam Mendidik Anak di Era Modern Menurut Perspektif Islam
Authors: Robiansyah Firman , Zahra Fadma Alyah , Lutfiiah Ratu Siti , Zailanty Shofia
Published: July 2024

The ideal family according to Islam is described in the Qur'an as a family that practices Islamic law with full awareness and obedience. This includes fearing Allah, creating a family that lives in balance with the teachings of Islam, and maintaining values and faithfulness in family life. Islam emphasizes the importance of the family as the main foundation in the formation of a good society. Interpretations of the Qur'an by Sayyid Outb and the Indonesian Ministry of Religious Affairs highlight the need to protect the family from the threat of hell. In Indonesia, there are several ideal family types, including nuclear, conjugal and extended families, each with defined roles for the father, mother and children. Roles in the ideal family include breadwinning, education, protection, as well as the development of children's psychosocial aspects according to their development. This research compares theories, findings and analysis to answer the problem statement clearly and concisely.
POLYMER TYPE EFFECT ON PREMNA SERRATIFOLIA EXTRACT-LOADED MICROPARTICLES PREPARATION BY SOLVENT EVAPORATION METHOD WITH SINGLE EMULSION SYSTEM
Authors: NURHASANAH SITI , ISKANDAR YOPPI , MUHAIMIN MUHAIMIN , HAZRINA AGHNIA , HIRZAN RIFANZA , SYAHRI WILDA
Published: July 2024

Objective: Premna serratifolia linn leaf possesses medicinal properties, useful in the treatment of cardiovascular diseases, skin diseases, inflammatory diseases and arthritis. P. serratifolia leaves extract was easy to damage because the light exposure, change of pH, weather and a long period of storage time. The problem can be solved by preparation the extract with microparticle technique. The purpose of this research was to formulate the microparticles of P. serratifolia leaves extract with solvent evaporation technique using Ethocel 10 cP and Eudragit E100 as matrix.
Methods: P. serratifolia leaves were extracted using ethanol 70%. This extract was dried by rotary evaporator. The microparticle process of P. serratifolia leaves extract was done by solvent evaporation technique (O/W: oil in water). The formula of P. serratifolia leaves extract microparticles was designed into six formulas (Ethocel 10 cP: EA1, EA2, EA3 and Eudragit E100: EB1, EB2, EB3 (10%,15%, 20%)), that they were dissolved in dichloromethane. Microparticles of P. serratifolia leaves extract were characterized for particle size in terms of surface morphology by scanning electron microscope (SEM) and encapsulation efficiency.
Results: In this research, the micoparticles containing P. serratifolia extract has been developed by using ethyl cellulose (Ethocel 10 cP) and eudragit (Eudragit E100) as the polymer matrix. The results showed that high concentration of polymer (Ethocel 10 cP (20%)) used in microparticles resulted in better P. serratifolia leaves extract microparticles in terms of physical characteristics. Particle size of microparticles containing P. serratifolia leaves extract were in the range of 1.024 to 1.662 μm. Encapsulation efficiency (% EE) was categorized as good because the value were ≥ 80% to, which 83.101% (EB3) and 85.574% (EA3). SEM picture of EA3 (Ethocel 10 cP) revealed that the surface of microparticles were a smoother surface and less visible pores of microparticles were obtained. When Eudragit E100 used as polymer, a rough and porous surface of microparticles were obtained.
Conclusion: It can be concluded that microparticles of P. serratifolia leaves extract can be prepared by solvent evaporation method with a single emulsion system (O/W) using Ethocel 10 cP and Eudragit E100 as polymer. Characterization of the microparticles revealed that polymer type used on this method is applicable to produce microparticles.
ANTI-OBESITY NUTRACEUTICALS: INSIGHTS INTO MECHANISMS OF ACTION AND POTENTIAL USE OF BIOCOMPATIBLE NANOCARRIERS FOR DELIVERY
Authors: ABDELFATTAH DOAA SALAH ELDIN , FOUAD MERVAT A. , ELMESHAD ALIAA N. , El-NABARAWI MOHAMED A. , ELHABAL SAMMAR FATHY
Published: July 2024

One of the serious health issues that has detrimental effects on health is obesity. Obesity is associated with common comorbidities like diabetes, dyslipidemia, and cardiovascular diseases. New understanding of the pathophysiologic mechanisms underlying obesity has led to the development of several novel agents and effective strategies to combat the global obesity epidemic and its comorbidities. The objective of managing obesity has changed to include both reducing its complications and helping people lose weight. Although there are more pharmaceutical options available for managing obesity, their efficacy and safety profiles are either limited or moderate. While behavior interventions and active lifestyle remain the cornerstones of successful weight loss, it can be very challenging to maintain such a healthy lifestyle. Thus, new agents that are safer and more effective are therefore urgently needed. Natural products and dietary supplements have been demonstrated as a potential treatment for obesity. Recent studies suggested that propolis, chromium picolinate, and White Kidney Bean Extract (WKBE) may have anti-obesity properties. This review provides an overview on the anti-obesity effects of these natural products, their active ingredients and mechanisms of action. In addition to potential cutting-edge delivery techniques that can be applied to maximize the anti-obesity effects of these bioactive substances with varying solubility, bioavailability, and stability.
City Fragments: Neapolitan Porosities
Authors: French Chris , Mitsoula Maria
Published: July 2024

Degree Show Catalogue from an ESALA MArch (Modular Pathway) studio 'City Fragments: Neapolitan Porosities'. Studio Leaders: Chris French and Maria Mitsoula. 2019-2020.
Grounding Naples: Architectural Articulations for/of Uncertain Grounds
Authors: French Chris , Lewis Michael
Published: July 2024

Degree Show Catalogue documenting the second year of a two-year ESALA MArch (Integrated Pathway) studio, ‘Grounding Naples’. Studio Leaders: Chris French and Michael Lewis, with Neil Cunning and Victoria Clare Bernie. 2022-2024.
Brno: Building Belvederes
Authors: Adams Kevin , Butler Louisa
Published: July 2024

Degree Show Catalogue documenting an ESALA MArch (Modular Pathway) studio 'Building Belvederes’. Studio Leaders: Kevin Adams and Louisa Butler. 2022-2023.
island territories VII: Mont-St-Michel Island Temporalities
Authors: Hawker Adrian , Bernie Victoria Clare
Published: July 2024

Degree Show Catalogue documenting the second year of a two-year ESALA MArch (Integrated Pathway) studio and an associated one-year MArch (Modular Pathway) studio, ‘island territories VII: Island Temporalities’. Studio Leaders: Adrian Hawker and Victoria Clare Bernie. 2020-2022.
Countryside [INSIDE] Architecture
Authors: French Chris , Lewis Michael
Published: July 2024

Degree Show Catalogue documenting an ESALA MArch (Modular Pathway) studio ‘Countryside [INSIDE] Architecture’. Studio Leaders: Chris French and Michael Lewis. 2021-2022.
Conversations through Making [PLZEŇ]
Authors: Adams Kevin , Butler Louisa
Published: July 2024

Degree Show Catalogue documenting an ESALA MArch (Modular Pathway) studio ‘Conversations Through Making [PLZEŇ]’. Studio Leaders: Kevin Adams and Louisa Butler. 2021-2022.
Soundings: Spaces/Architectures of Reassurance
Authors: Ewing Suzanne , Brooks Andrew
Published: July 2024

Degree Show Catalogue documenting an ESALA MArch (Modular Pathway) studio ‘Soundings: Spaces/Architectures of Reassurance’. Studio Leaders: Suzanne Ewing and Andrew Brooks. 2021-2022.
PARASITUATION [AHMEDABAD]: “Past, Present and Possible”
Authors: Wiszniewski Dorian
Published: July 2024

Degree Show Catalogue documenting a two-year ESALA MArch (Integrated Pathway) studio ‘PARASituation [Ahmedabad]’. Studio Leader: Dorian Wiszniewski. Tutor: Kevin Adams. 2019-2021.
Comparative study of bio-control agents against fusarium wilt in okra caused by Fusarium oxysporum pv. vasinfectum
Authors: Fatima Syeda Sana , Amjad Ali Muhammad , Jabran Muhammad , Nabeel Afzal Muhammad , Abbas Amjad
Published: July 2024

Okra (Abelmoschus esculentus) is a widely cultivated vegetable crop that is susceptible to various pathogens, including Fusarium oxysporum, which causes severe disease of wilt. Chemical control using fungicides currently poses risks to human and animal health. To find ecofriendly method, the present study aimed to compare the effectiveness of different bio-control agents (BCAs) against Fusarium wilt in Okra for eco-safe management. Okra seeds were taken from Vegetable Research Institute, Ayub Agricultural Research Institute. Disease samples were collected, and the pathogen was isolated, purified, and multiplied by using potato dextrose agar media. Pure culture was used for the isolation of DNA and amplification of the ITS region was accomplished by using ITS-1 and ITS-4 primers. The fragments were visualized by running it on 1% agarose gel. The PCR product of F. oxysporum pv. vasinfectum was successfully confirmed based on size of fragment by comparing with 1 kb marker. It was verified that the selected primer pair specifically amplified the anticipated 18S rDNA fragment, measuring 500 base pairs in length. Moreover, in-vitro tests revealed that BCAs like Bacillus spp. inhibited Fusarium fungus by 41.2%, while Trichoderma inhibited it by 38.5%. Control groups exhibited no inhibition of pathogen growth. Taken together, this effort has important implications for the implementation of biological management strategies in Okra field to mitigate the impact of Fusarium wilt disease.
Insights into Fusarium spp., Associated with Dry Root Rot of Citrus and its Management
Authors: Usman Hafiz Muhammad , Iffat Atika , Shafique Talha
Published: July 2024

In recent years, citrus has become one of the major fruit crops in Pakistan for export. Citric acid, oxalic acid, malic acid, malonic acid and succinic acid are organic acids found in citrus fruits that provide calories and are easily digested as they are part of metabolic pathways in the human body. Fusarium spp., are primarily responsible for causing dry root rot in citrus, which is one of the most serious fungal diseases affecting citrus worldwide. Various citrus diseases, e.g., root rot, canker, damping-off, and wilt, have been linked to Fusarium species. The symptoms of dry root rot include larger roots decay and trunk below bud union without any oozing of gum, reduced vigor in the canopy, dull green leaves, twig dieback and inhibited new growth. Fusarium spp., is a complex species that can remain in the soil for a long time and is transmitted by wind, machinery, and water. Dry root rot and Fusarium solani and Fusarium oxysporum are commonly found causing this disease globally. Biocontrol agents, such as Trichoderma species (harzianum and viride), have been used to manage several phytopathogens, including the causal agent of dry root rot, Fusarium, to promote eco-friendly practices instead of using harmful chemicals in agriculture. Additionally, the management of dry root rot disease caused by Fusarium spp., necessitates the optimization of irrigation and fertilization inputs. Along with sanitation practices, regular scouting and monitoring of key pests and diseases play a crucial role in enhancing control methods and minimizing pesticide usage.
Uniform stability, boundedness and square integrability for non-autonomous third-order neutral differential equations with delay
Authors: Rahmane Mebrouk , Abdellaoui Fatima
Published: July 2024

The work in this article provides literature with some results concerning the exponential stability, the boundedness and the square integrability of solutions for some non autonomous equations of third order supplied with delay and neutral parameters. The main tool used in this work is the second method of Lyapunov. The article is finished by giving a concrete example that ensure the application of the obtained results.
Опыт прошлого и перспективы постклассических правовых исследований: предъюбилейные размышления главного редактора
Authors: Разуваев Н. В.
Published: July 2024

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Dialectics of Archaic and Modern in the Axiology of Modern Law
Authors: Furman F. P.
Published: July 2024

The characteristics, structures and hierarchies of the value world are considered. The ways of cognition of value and its ontological status are identified. The nature and specificity of value judgments is given. The study examines the problem of theoretical and conceptual positions, principles and methods of law and their axiological significance; the issues of modern social economics and legal nature are analyzed; the axiological significance of the principles of civil law in modern conditions is determined. Theoretical and practical aspects of the axiology of the principles of modern law are established and disclosed; it was concluded that the axiological significance of the principles of law is constant and stable and does not depend on historical or socio-economic conditions; it has been confirmed that legal axiology as a research type of legal philosophy is capable of elevating value transformations in the system of legal reality to the level of self-reflection of law as a form of social consciousness.
Trends in the Development of Legal Regulation of Tax Payment in the Context of Digitalization of the Economy
Authors: Lyutova O. I.
Published: July 2024

The article is devoted to the analysis of trends in the development of legal regulation of the obligation to pay taxes, caused by digital transformation. It has been proven that in the modern realities of digitalization of taxation in the field of legal regulation of the fulfillment of the obligation to pay taxes, three interrelated trends are being realized: firstly, a discrepancy has been established between the pace of development of tax legislation and the objectively existing system of information and digital technologies; secondly, there has been an increase in the volume of discretionary regulation of tax relations governing the process of fulfilling the obligation to pay tax; thirdly, there is an intensification of the use of tax-experimental regulation. Using the example of a tax on professional income, the digital ruble, benefits for organizations in the IT sector, an automated simplified taxation system, as well as a single tax payment, the features of the manifestation of trends in legal regulation and enforcement of provisions on the payment of taxes in the digital era are formulated.
Sobre escrita (na academia) que refaz nascentes
Authors: CARDOSO Á. A.
Published: July 2024

The process of writing this paper is a kind of reminiscence in action, not given by theoretical constructs regarding intersectionality. But it triggers knowledge found in a 'corpa' collective - as an 'amazônida' woman of original and indigenous affiliation, paraense and palestinense from the banks of the Araguaia River; daughter, granddaughter, great-granddaughter of babassu coconut breakers... The following writing is the enchanted expression of this 'corpa' about the encounter with the waters of my elders, the ancient knowledge and textual constructions, especially the original and African women.
KEANEKARAGAMAN ZOOPLANKTON SEBAGAI INDIKATOR KUALITAS DANAU SIPIN KOTA JAMBI SEBAGAI PENGAYAAN PRAKTIKUM TAKSONOMI MONERA DAN PROTISTA
Authors: Pangestu Retno , SUKMONO TEDJO , HARLIS HARLIS
Published: July 2024

Abstrak. Penelitian ini bertujuan untuk mengetahui keanekaragaman zooplankton di Danau Sipin. Penelitian ini menggunakan metode deskriptif eksploratif dengan penentuan lokasi secara purposive sampling. Hasil penelitian menunjukkan bahwa ditemukan 6 kelas zooplankton, yaitu: Tubulinea, Monogononta, Maxillopoda, Euglenophyceae, Imbricatea, dan Eurotatoria yang terdiri dari 15 jenis, yaitu: Arcella sp., Difflugia globulosa, Difflugia limnetica, Difflugia pyriformis, Asplanchna sp., Brachionus angularis, Brachionus sp., Cyclopoid sp., Macrocyclops varians, Trachelomonas rachiborskii, Euglypa cristata, Polyartha trigla, Trichocerca sp., Trichocerca birostris, Trichocerca bicristata. Kelimpahan berkisar antara 0,0031 Ind/L â€“ 0,0051 Ind/L; indeks kemerataan berkisar antara 0,876 â€“ 0,915; indeks keanekaragaman 1,41 â€“ 2,164; dan indeks dominansi 0,128 â€“ 0,292. Keanekaragaman tergolong sedang karena indeks keanekaragaman yang diperoleh lebih besar dari 1 dan lebih kecil dari 3 serta tidak ada jenis yang mendominasi. Dapat disimpulkan keanekaragaman tertinggi terdapat pada kelas Tubulinea. Kualitas air danau dapat ditoleransi oleh zooplankton karena cenderung memiliki nilai yang baik. Peneliti disarankan melakukan penelitian pada malam hari untuk melihat kaitan antara distribusi zooplankton dengan intensitas cahaya matahari, serta melakukan penelitian dengan penentuan titik lokasi yang lebih menyebar.
Karakteristik dan Keanekaragaman Echinodermata Di Kawasan Perairan Pantai Lhok Geulumpang Aceh Jaya
Authors: Oktavia Rita , Suryanti Suryanti
Published: July 2024

kawasan Perairan pantai Lhok Geulumpang telah menjadi lokasi pariwisata di beberapa titik bagian pinggiran pantai. Kajian ekologi dan kekayaan jenis biota laut Aceh Jaya masih sedikit terpublikasi. Selain itu kelompok sea urchin (bulu babi) bernilai ekonomis karna gonad/ telur bulu babi dapat dijadikan bahan makanan. Penelitian ini bertujuan untuk mengkaji komposisi jenis, indeks keanekargaman dan pola sebaran Echinodermata di kawasan perairan Pantai Lhok Geulumpang Aceh Jaya. Penelitian telah dilakukan pada November-Desember 2019 di kawasan perairan Pantai Lhok Geulumpang Aceh Jaya. Metode yang digunakan adalah kombinasi dua metode transek yaitu transek garis (line transect) dan transect kuadrat (quadrat transect). Stasiun 1 lokasiÂ  pantai bersubstrat pasir tidak terdapat batuan karang dan lokasi ke 2 bersubstrat terumbu karang dan batuan karang. Spesies yang ditemukan dikoleksi untuk dilakukan identifikasi dilaboratorium BiologiÂ  STKIP Bina Bangsa Meulaboh. Dari hasil penelitian diperoleh Â 3 jenis Echinodermata, yang terdiri dari 2 famili dan 3 ordo. Tiga spesies yang ditemukan adalah Echinothrix diademaÂ (Linnaeus, 1758), Echinothrix calamarisÂ (Pallas, 1774) dan Â Colobocentrotus atratus (Linnaeus, 1758). Dari hasil analisis ditemukan kemerataan jenis (Jâ€™) pada substrat berpasir bernilai Jâ€™=0,93165 dan pada substrat bebatuan bernilai Jâ€™=0,84251 menunjukkan kemerataan jenis tergolong Tinggi. Berdasarkan hasil analisis indek keanekaragaman Shannon wiener (Hâ€™). Pada stasiun substrat berpasir Hâ€™= 1,4994Â  menunjukkan keanekaragaman jenis tergolong rendah. Sedangkan pada stasiun substrat batuan diperoleh Hâ€™= 1,5096 tergolong keanekaragaman sedang. Indeks kekayaan jenis Malgaref pada stasiun substrat berpasir DMg= 1,2427 dan pada stasiun Bersubstrat batuan diperoleh DMg= 1,0499 menunjukkan indek kekayaan jenis Malgaref tergolong rendah.
Relation Between Chromium Contaminant Profile and Mollusk Community Structure In Opak River
Authors: Ma'dika Geraldine Apriceline , Raharjo Djoko , Kisworo Kisworo
Published: July 2024

The used of chromium (Cr) in tannery industrial area in Banyakan Village, Piyungan has been proven to pollute river components and the mollusk community structure. From the results, chromium was found in water with a concentration range of 0.0004 - 0.975 mg/L with an average concentration of 0.053 mg/L. While in sediments with a range of 0,0004 - 2,730 mg/kg with a average concentration of 1,015 mg/kg. Chromium in mollusk was found with range of 0.0004 - 2.761 mg/kg with an average of 1.065 mg/kg. From the identification of the mollusk community, it was found 19 species and 2 classes of mollusks, which is Gastropods and Bivalvia. Sulcospira testudinaria became the highest chromium accumulation in all species (1,555 mg/kg). The results of the correlation test between the chromium concentration in water and sediment and chromium concentration in mollusks did not have a significant effect.
KEANEKARAGAMAN JENIS SEMUT (HYMENOPTERA: FORMICIDAE) DI SEKITAR KAMPUS 4 UNIVERSITAS AHMAD DAHLAN YOGYAKARTA
Authors: Indra Putra Ichsan Luqmana , Setiawan Haris , Suprihatini Novilia
Published: July 2024

Keanekaragaman adalah jenis-jenis makhluk hidup yang ada di bumi, baik di daratan, lautan, maupun tempat lainnya, salah satunya semut. Semut dapat ditemukan di berbagai habitat, baik di dataran rendah ataupun dataran tinggi. Penelitian ini bertujuan untuk mengetahui tingkat keanekaragaman semut yang berada disekitar kampus 4 UAD Yogyakarta dan mengetahui spesies semut dominan yang ditemukan. Area pengambilan sampel mewakili 4 area sekitar kampus yaitu persawahan, perumahan, kampus, dan lahan kosong. Setiap area pengambilan sampel ditentukan 2 plot dengan ukuran 700 m2 (35 m x 20 m) yang tersebar pada area pengambilan sampel. Kemudian di dalam plot ditentukan 5 subplot dengan ukuran 150 m2 (15 m x 10 m) yang tersebar di dalam plot. Metode yang digunakan pada penelitian ini adalah pengambilan sampel dengan metode tidak langsung dengan menggunakan jebakan sugar trap dan bait trap. Lima trap dipasang di setiap subplot, sehingga total terdapat 25 jebakan pada masing-masing plot. Semut yang didapatkan kemudian diidentifikasi dengan melihat ciri morfologinya sampai tingkat spesies. Hasil identifikasi kemudian ditabulasikan untuk kemudian dihitung tingkat keanekaragaman semut. Perhitungan tingkat keanekaragaman tersebut dihitung dengan menggunakan rumus Shannon-Wiener dan untuk menghitung dominansi semut menggunakan formula Ludwig dan Reynolds (1981). Hasil penelitian ini, didapatkan tingkat keanekaragaman semut disekitar kampus 4 UAD memiliki tingkat rendah dengan nilai Hâ€™ 0,78 yang disebabkan oleh pengaruh dari alih fungsi lahan dan diperoleh spesies semut yang paling melimpah adalah Monomorium minimum dengan jumlah 3734 individu dan yang tidak melimpah yaitu spesies Cardiocondyla elegans dengan jumlah 1 individu.
Quality and Shelf Life of Dragon Fruit (Hylocereus costaricensis) with Edible Coating of Watermelon Albedo Pectin with Addition of Ginger Extract (Zingiber officinale)
Authors: Virda Virda Yurniar , Asra Revis , Adriadi Ade
Published: July 2024

Dragon fruit (Hylocereus sp.) is a horticultural commodity that has bright prospects in the agricultural sector. Dragon fruit is a perishable and rotten fruit. Efforts are made by coating (edible coating). This study aims to determine the quality and shelf life of dragon fruit with edible coating of watermelon albedo pectin with the addition of ginger extract. This research was conducted in March-April 2022. The results of the study stated that the edible coating of watermelon albedo pectin with the addition of ginger extract had no effect on fruit quality on weight loss and water content and the best concentration of ginger extract on edible coating of watermelon albedo pectin, namely the concentration of ginger extract 54% on the texture and color of the neutral fruit ( 3) on 14 days storage.
Struktur Populasi Kasturi (Mangifera casturi Kosterm) Di Kawasan Danau Sari Embun Kabupaten Tanah Laut
Authors: Sofhia Nida , Dharmono Dharmono , Irianti Riya
Published: July 2024

Struktur populasi sangat penting dilakukan untuk mengetahui status dan keberadaan suatu populasi dalam suatu habitat. Kasturi (Mangifera casturi Kosterm) merupakan jenis flora endemik Kalimantan. Kasturi salah satu tumbuhan yang terdapat di Kawasan Danau Sari Embun Kabupaten Tanah Laut. Penelitian ini bertujuan untuk Mendeskripsikan struktur populasi Kasturi di Kawasan Danau Sari Embun Kabupaten Tanah Laut. Hasil penelitian menunjukkan bahwa struktur populasi Kasturi di Kawasan Danau Sari Embun memiliki bentuk piramida pasu atau kendi terganggu dengan dua fase pertumbuhan yaitu fase reproduktif dan fase post-reproduktif. Tumbuhan Kasturi yang terdapat di Kawasan Danau Sari Embun dikategorikan kritis yaitu 0,44 Ind/Km².
Induksi kalus eksplan daun Anggrek Pensil (Papillionanthe hookeriana Rchb.f.) pada Kombinasi Zat Pengatur Tumbuh 2,4-D dan BAP
Authors: Neliyati Neliyati , Lizawati Lizawati
Published: July 2024

Terbentuknya kalus merupakan salah satu indikasi keberhasilan dalam perbanyakan secara kultur jaringan. Faktor yang sangat menentukan dalam induksi kalus tersebut adalah ketepatan dalam menetukan jenis dan konsentrasi zat pengatur tumbuh auksin dan sitokinin dalam mendia kultur. Penelitian in bertujuan untuk mendapatkan konsentrasi zat pengatur tumbuh auksin (2,4-D) dan sitokinin (BAP) yang dapat  menginduksi pembentukan propagule berupa kalus embrionik dari tanaman anggrek pensil dengan menggunakan teknik perbanyakan secara kultur jaringan. Perlakuan yang diuji pada penelitian ini adalah aplikasi beberapa konsentrasi  zat pengatur tumbuh auksin (2,4-D) yaitu 0,5; 1,0; 1,5 dan 2,0 ppm yang dikombinasikan dengan zat pengatur tumbuh sitokinin (BAP) dengan konsentrasi 0,0 dan 0,5 ppm. Percobaan disusun dalam pola Rancangan Acak Lengkap (RAL) dengan 15 eksplan setiap perlakuan. Parameter yang diamati adalah waktu eksplan berespon (membengkak), persentase eksplan membengkak, saat muncul kalus, persentase eksplan membentuk kalus, struktur kalus dan warna kalus. Hasil percobaan diperoleh bahwa eksplan daun anggrek pensil mengalami respon pembengkakan dan membentuk kalus. Pembengkakan terjadi paling cepat dua minggu setelah kultur. Persentase eksplan membengkak dan berkalus paling banyak  diperoleh dari perlakuan media MS yang ditambah dengan kombinasi zat pengatur tumbuh auksin 2,4-D 2,0 ppm + 0,5 ppm sitokinin BAP, yaitu eksplan yang membengkak sebanyak 100% dan eksplan berkalus 26,67%. Kalus yang terbentuk berstruktur remah, berwarna putih.
Pola Aktivitas Harian Lutung (Presbytis cristata, Raffles 1821) di Hutan Sekitar Kampus Pinang Masak, Universitas Jambi
Authors: Subagyo Agus , Arfan Evid , Siburian Jodion
Published: July 2024

jelajah harian meliputi day range (DR), maximum radius (MR) dan night position shift (NPS) di hutan sekitarKampus Pinang Masak, Universitas Jambi. Pengamatan lutung dilakukan dengan metode scanning mulailutung aktif pada pagi hari sampai sore hari. pengamatan dilakukan selama sepuluh hari berturut-turut. Hasilpenelitian menunjukkan rata-rata persentase aktivitas lutung dalam satu hari untuk makan 57,7%, pindahtempat 10,2%, istirahat 19,4% dan aktivitas lainnya 12,7%. Jauh pergerakan harian lutung di hutan sekitarkampus pinang masak, universitas jambi yaitu rata-rata day range (DR) 669,8 m, night position shift (NPS)241,9 m dan maximum radius (MR) 336,7 m. Jenis pohon yang sering digunakan lutung sebagai tempat tiduradalah karet (Hevea brasiliensis), sengon (Albizzia stipulata) dan spesies x (tidak teridentifikasi). Sedangkanjenis tumbuhan sumber pakannya adalah karet (Hevea brasiliensis), sengon (Albizzia sputulata) dan petai(Parkia speciosa).
Local (Agro) Ecological Knowledge of Jangkat (A note from the field)
Authors: Hariyadi Bambang
Published: July 2024

Jangkat is an indigenous group who inhabits a region bordering with the Kerinci SeblatNational Park. The group still strongly attaches with their tradition and implements traditional valuesin their daily lives. The Jangkat have developed local ecological knowledge by observing localecological dynamics intensely over generations. The knowledge is implemented in local agriculturalpractices that fit with local socio-cultural and natural condition. Latter on, the agro-ecologicalknowledge is incorporates into local customary institution (adat) and comes out with a sustainablenatural resource management model and improves the lives of the Jangkat people.
Analisis Ambang Batas Escherichia coli Sebagai Indikator Pencemaran Pada Daging Sapi di Rumah Pemotongan Hewan Kota Jambi
Authors: Budiono Hendra
Published: July 2024

Beef is one of the Indonesian favorite foods and provides protein needed for human bodyâ€™s health and growth. Rumah Pemotongan Hewan (RPH) Jambi is a slaughtering house that provides and distributes beef to traditional markets throughout Jambi City. Therefore, it is very essential to assure safetyof every piece of beef produced by the RPH. This research was undertaken in Biology UP-MIPA Laboratory, University of Jambi, from December 2009 to January 2010. The beef samples were collected from the Jambi RPH. This research employs the Most Probable Number (MPN) method, by observing the growth of Escherichia coli on Endo Agar media, starting from presumptive test until confirmative test. The experiment used 5-5-5 series reaction tubes, including the Durham fermentation tube. The results show that beef produced by the JAMBI RPH is 100% safe to be consumed. The number of Escherichia coli in the fresh beef is still below the maximum threshold level, which is 5 X 101MPN/100 ml
Isolasi dan Karakterisasi Bakteri pada Ikan Kembung (Rastrelliger sp.) Asin Berkitosan
Authors: Agustina Diana , Yulvizar Cut , Nursanty Risa
Published: July 2024

Kitosan memiliki sifat antibakteri sehingga dapat dimanfaatkan sebagai bahan pengawet ikan. Penelitian ini dilakukan di Laboratorium Mikrobiologi Universitas Syiah Kuala, Banda Aceh dari bulan Mei sampai Agustus 2012, untuk mengisolasi dan mengkarakterisasiÂ  bakteri pada ikan kembung (Rastrelliger sp.) asin berkitosan. Metode yang digunakan dalam penelitian ini deskriptif. Dari hasil isolasi didapat enam isolat yang memiliki morfologi koloni dan sel yang berbeda. Isolat yang memiliki bentuk bundar (50%), elevasi cembung (33,3%), tepian licin (50%) warna kuning (66,7%), sel bakteri gram positif (66,7%), bentuk sel bulat (100%), tidak berspora (66,7%) dan bersifat motil (66,7%).
Isolasi dan Identifikasi Bakteri Probiotik pada Rastrelliger sp.
Authors: Yulvizar Cut
Published: July 2024

Probiotik merupakan mikroba menguntungkan yang bermanfaat untuk memperbaiki keseimbangan mikroba di dalam saluran pencernaan. Isolasi bakteri probotik dilakukan dengan tujuan untuk mendapatkan bakteri yang berpotensi sebagai probiotik pada ikan kembung (Rastrelliger sp.). Penelitian ini menggunakan metode deskriptif. Hasil penelitian menunjukkan bahwa terdapat lima isolat bakteri yang berpotensi sebagai probiotik. Hasil uji fisiologis untuk identifikasi bakteri menunjukkan adanya tiga genera (Micrococcus, Staphylococcus dan Bacillus) dan satu spesies bakteri (Hafnia alvei) yang berpotensi sebagai probiotik pada ikan kembung (Rastrelliger sp.).
Pengaruh Beberapa Ukuran dan Jenis Ikan sebagai Inang Terhadap Densitas Penempelan Glokidia Kijing Taiwan (Anodonta woodiana Lea)
Authors: Hamidah Afreni
Published: July 2024

Penelitian mengenai pengaruh beberapa ukuran dan jenis ikan sebagai inang terhadap densitas penempelan glokidia Anodonta woodiana Lea telah dilakukan di Laboratorium Biologi PMIPA FKIP Universitas Jambi dimulai dari April-Juni 2006. Penelitian menggunakan rancangan acak lengkap faktorial dengan faktor A berupa jenis ikan inang (ikan mas, ikan sepat dan sepatung) dan faktor B berupa ukuran ikan dengan 4 kali ulangan. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang nyata antara ukuran dan jenis ikan inang yang digunakan dengan densitas penempelan glokidia. Densitas penempelan tertinggi terdapat pada ukuran terbesar dari ikanÂ  inang. Densitas penempelan tertinggi terdapat pada ikan sepat dan nyata berbeda dibandingkan jenis ikan inang lainnya. Glokidia pada ikan mas dengan ukuran kecil memiliki densitas penempelan terendah.
Analisis Fisik Kimia Perairan untuk Mendeteksi Kualitas Perairan Sungai Rambang Kabupaten Ogan Ilir Sumatra Selatan
Authors: Soraya Soraya , Hanafiah Zazili , Windusari Yuanita
Published: July 2024

Penelitian terhadap kualitas dan kondisi perairan Sungai Rambang Kabupaten Ogan Ilir telah dilakukan selama Juli - November 2012. Sampel air diambil di 5 lokasi dengan 3 titik yang masing-masing diulang sebanyak 3 kali. Penentuan lokasi sampelÂ  berdasarkan metode Purposive Random Sampling. Analisis kualitas air dilakukan secara langsung di lapangan dan di LaboratoriumÂ  kimia FMIPA Â Universitas Sriwijaya. Hasil menunjukkan bahwa kondisi fisik-kimia Sungai Rambang termasuk dalam kategori baik.Â  Kisaran suhu cenderung sama dengan suhu udara sekitar perairan yaitu 26-31 ÂºC, tingkat kecerahan 7-40 %, TSS 32-161 mg/L, TDS 41-278 mg/L, DHL 18-238 ÂµS/cm, kecepatan arus 6-13 cm/detik, DO 5,90-12,35 mg/L, BOD 0,47- 5,42 mg/L, COD ttd- 14,5 mg/L, pH 4,85-6,95, dan lemak 211-289 mg/L. Nilai-nilai parameter ini masih sesuai dengan standar Baku Mutu Air (BMA) perairan sungai tahun 2010. Kualitas fisik kimia perairan berpengaruh terhadap keanekaragaman jenis dan distribusi plankton. Curah hujan mempengaruhi kondisi perairan, dan mempengaruhi jumlah serta jenis plankton dalam perairan tersebut. Pada musim penghujan, indeks keanekaragaman spesies plankton cenderung rendah Â dibandingkan pada musim kemarau yaitu 1,22 â€“ 2,26, dengan Indeks keseragamanÂ  antara 0,31- 0,58 yang berarti tidak ada dominansi suatu populasi plankton. Kehadiran dan keanekaragaman populasi plankton merupakan indikasi kualitas lingkungan perairan. Hasil uji parameterÂ  fisik kimia perairan yang dilakukan menunjukkan bahwa kualitas perairan sungai Rambang masih layak untuk dimanfaatkan oleh masyarakat, namun tidak disarankan untuk digunakan sebagai sumber air minum.
Pertumbuhan Tanaman Kelapa Sawit Belum Menghasilkan (TBM I) pada Pemberian Mikoriza Indigen dan Dosis Pupuk Organik di Lahan Marjinal
Authors: Kartika Elis
Published: July 2024

Abstrak. Tujuan penelitian ini adalah untuk mengkaji pertumbuhan tanaman kelapa sawit belum menghasilkan (TBM I) pada pemberian mikoriza indigen dan dosis pupuk organik di lahan marjinal (Ultisol).Â  Percobaan ini terdiri dari dua faktor perlakuan menggunakan Rancangan Acak Kelompok.Â  Faktor pertama adalah mikoriza terdiri dari dua taraf (M0: tanpa inokulasi mikoriza serta M1 : dengan inokulasi mikoriza jenis Glomus sp-16), sertaÂ  faktor kedua, pemberian dosis pupuk organik, terdiri atas lima tarafÂ  (P0 =Â  tanpa pupuk organik, P1 = 25% Â dosis anjuranÂ  pupuk organik kompos kotoran sapi, P2 = 50%Â  dosis anjuran pupuk organik kompos kotoran sapi, P3 = 75%Â  dosis anjuran pupuk organik kompos kotoran sapi, dan P4 = 100% dosis anjuran pupuk organik kompos kotoran sapi.Â  Hasil penelitian menunjukkan Pemberian mikoriza dan berbagai dosisÂ  pupuk kompos kotoran sapi serta interaksi antara pemberian mikoriza dan berbagai dosisÂ  pupuk kompos kotoran sapi mampu meningkatkan pertumbuhan tanaman kelapa sawit belum menghasilkan (TBM 1) umur 6 bulan yang ditanam di lahan marjinal.Â  Pemberian mikoriza dan pupuk kompos kotoran sapi dengan dosis 75% dari dosis rekomendasi mampu meningkatkan pertumbuhan tanaman kelapa sawit belum menghasilkan (TBM 1) yang terbaik di lahan marjinal. Â  Kata Kunci: lahan marjinal, ultisol, mikoriza, pupuk organik, kelapa sawit
Isolasi Bertahap Bakteri Pendegradasi Limbah Tandan Kosong Kelapa Sawit di PT. Erasakti Wira Forestama Muaro Jambi
Authors: BUDIARTI Retni S , KARTIKA Winda Dwi
Published: July 2024

Abstrak. Penelitian ini bertujuan untuk mendapatkan isolat bakteri yang mampu mengurai limbah tandan kosong kelapa sawit secara bertahap. Skrining tahap pertama pada Nutrient Broth dan Tandan Kosong Kelapa sawit yang dishaker 150 rpm selama 3 hari,dan diperoleh 18 isolat bakteri. Sedangkan pada skriningÂ  tahap keduaÂ  menggunakan Nutrient Broth ditambah Tandan Kosong Kelapa Sawit dan diperkaya dengan sisa medium tahap 1 (Nutrient Broth ditambah Tandan Kosong Kelapa Sawit yang telah didegradasi oleh 18 isolat)Â  dishakerÂ  selama 3 hari dengan kecepatan 150 rpm, didapatkan 6 buah isolat bakteri. Menurut buku Bergey Manual of Determinative Bacteriology Isolat 1, isolat 2, isolat 3, isolat 5 dan isolat 6 termasuk kelompok ke 7 yaitu bakteri gram negatif aerobik bentuk kokus dan batang. Sedangkan isolat 4 termasuk ke dalamÂ  kelompok ke 14 yaitu bakteri gram positif berbentuk kokus. Â  Kata Kunci : Isolasi, Limbah, Tandan Kosong Sawit
Jumlah Sulur sebagai Penanda Diabetes Mellitus Tipe-2 Etnis Minangkabau
Authors: Syamsurizal Syamsurizal
Published: July 2024

Abstrak. DMT-2 merupakan penyakit degeneratif yang sulit disembuhkan. Prevalensi diabetes di Indonesia menduduki peringkat ketujuh di dunia. Oleh karena itu upaya yang diperlukan untuk mencegah DMT-2 dengan mencari penanda genetik. Jumlah sulur ujung jari tangan dapat digunakan sebagai penanda genetik DMT2. Tujuan penelitian menemukan hubungan jumlah sulur Â sebagai penanda genetik DMT-2. Metode penelitian case control dengan model cross sectional study dengan 66 DMT-2 dan 66 kontrol. Hasil penelitian jumlah sulur ujungÂ  jari tangan DMT2 adalah 104,85 dengan SD Â±30,02, pada kontrol 122,06 dengan SD Â±29,54. Hasil uji-t dengan nilai p<0,05. Jumlah Â sulur ujungÂ  jari tangan kanan Â Â DMT2 adalah 53,3 dengan SD Â±15,4, sedangkan pada kontrol Â 63,2 Â dengan SD Â±15,9. Jumlah Â sulur ujungÂ  jari tangan kiri DMT2 adalah 51,6 dengan SD Â±15,9, pada kontrol 58,9 Â dengan SD Â±15,5. Hasil uji anava didapatkan p<0,05. Hasil uji anava jumlah sulur setiap jari diperoleh p<0,05, kecuali jari V/kelingking. Dengan demikian terdapat hubungan jumlah sulur total sidik jari(TRC), jumlah sulur tangan kanan dan kiri sertaÂ Â  jumlah sulur setiap sidik jari dengan penderita DMT2 etnis Minangkabau, kecuali kelingking. Â  Kata kunci: jumlah sulur, DMT2 dan etnis Minangkabau
The Effects of Powder Recycling on the Mechanical Properties of Laser Powder Bed Fusion Stainless Steel for Nuclear Applications
Authors:   , Douglas Rory
Published: July 2024

Laser powder bed fusion (L-PBF) is a form of additive manufacturing (AM) that can be used to manufacture geometrically complex parts in near net shapes. This form of manufacturing lends itself to high performance engineering parts, which are required in small to medium quantities. As such, L-PBF of 316L stainless steel has been adopted by Rolls-Royce for the manufacture of components for use in pressurised water reactors (PWR). With L-PBF being used to manufacture parts, optimising and controlling the method of production is paramount. Powder recycling refers to the reuse of the powder feedstock in L-PBF across multiple builds and is crucial for the economic viability of L-PBF. However, through powder recycling, the physical and chemical properties of powder are liable to change. This variation in powder properties could lead to knock-on effects for the mechanical properties of parts. This study begins by identifying the changes that occur to powder as a result of recycling. This includes changes to powder size distribution (PSD), flowability, chemistry, porosity and phase composition of recycled powder. The uniaxial tensile and low cycle fatigue (LCF) performance of parts manufactured at different levels of powder recycling were investigated, complimented by thorough microstructural, chemical and porosity analysis. Finally, other sources of variation in the LCF performance of L-PBF 316L were studied. This was undertaken to weigh the relative importance of powder recycling against other variables such as intermachine variability, altering build parameters and post manufacture heat treatment of parts. Although moderate changes to powder were observed as a result of recycling, this was found to not result in any negative changes to part performance. In addition, the microstructure of 316L remained stable across differing levels of powder recycling. Porosity increased marginally as the fine particle content of powder was reduced, but this was not sufficient to affect the low cycle fatigue performance of parts. After powder recycling, variations to ductility and Young’s modulus were primarily attributed to the small specimen geometry tested. The optimal recommendation for controlling powder recycling was derived to include strict controls over the initial virgin powder condition. More important factors to consider when monitoring the properties of production L-PBF 316L parts included build parameters, post process HT and sample orientation. Variations to all three of these factors resulted in microstructural change within L-PBF 316L, which created more significant variation within part properties in comparison to powder recycling.
RAPID PROTOTYPING FOR THE PRODUCTION OF INTERSTITIAL FREE STEELS
Authors:   , Abdullah Talal
Published: July 2024

The miniaturisation of steel production is one of the fronts of metallurgy that must be tackled to provide TATA steel with a competitive edge. This research looks to explore the capabilities of small-scale (40 – 140g) Rapid Alloy Prototyping (RAP) in producing and testing a well-understood Interstitial Free (IF) steel grade, DX57, and comparing it to the industrial product. IF steel is unforgiving towards slight deviations along the entire processing line. To achieve the desired formable properties, the process from casting to annealing must follow a set of strict tolerances. The small-scale RAP attempts to follow most of the industrial processing line; this includes (from start to finish) Coil induction melting, drop casting, reheating, descaling, hot rolling, coiling, sandblasting, cold rolling, and annealing. Techniques such as scanning electron microscope (SEM), optical microscopy, electron backscatter diffraction (EBSD), torsion testing, tensile testing, and optical emission spectroscopy (OES) were used to analyse both the industrial and RAP IF material—the ability to match the tensile-mechanical, thermomechanical, and metallurgical properties of the product demonstrates the merit of the miniaturised processing line. When exploring the scaling effects of miniaturised tensile specimens, representative mechanical properties were achieved; a specimen with a gauge length of 10mm measures an agreeable r-value. Success was seen in the tight compositional control in the synthetic production of IF steel when melting 40g (RAP40g) and 140g (RAP140g) of material in the coil induction drop casting machine and the coil induction centrifugal casting machine, respectively. Detailed analysis of each RAP80g process line stage allowed limitations to be identified and optimised for improved capability. Representative texture and r-values were observed in the RAP80g through process sheet when a single pass 70% hot reduction, 75% cold reduction, and a 100 mpm annealing cycle with a soaking temperature of 820oC was used. A thorough process was explored using a value stream map; with implemented optimisations, 20 alloys can be produced and tested within eight days. Overall, it will assist in establishing a confident campaign towards replacing industrial-scale experimentation of novel steel grade with the RAP process, which is sufficient to explore the matrix of varied parameters to swiftly filter the optimal configuration for upscale.
Fundamental Study of Filiform Corrosion on Novel Automotive Aluminium Alloys
Authors:   , Rowland Sarah
Published: July 2024

The aim of this work was to obtain an improved understanding of filiform corrosion (FFC) on 6000 series alloys. Chapter 3 describes kinetic and mechanistic studies on AA6014 and AA6022 identifying two types of attack, “surface active” (SA-FFC) and “successive pitting” (SP-FFC) FFC. SA-FFC is superficial with a depth c.a. 1-2 μm and occurs when a near-surface deformed layer (NSDL) is present at the alloy surface. P-FFC is a form of intergranular attack which can penetrate to a greater depth of c.a.0-50 μm. SP-FFC only occurs when the NSDL is absent or has already dissolved. In Chapter 4 the effect of relative humidity and presence of a NSDL on the type and rate of FFC on AA6014 and AA6022 was investigated. In all cases 80%RH was found to produce the largest rate of corrosion and showed most clearly the 2 types of FFC. At RH < 80% successive pitting is the more dominant FFC. At RH > 80% surface active FFC is more dominant. Although not measured, it was also visually clear that samples with a NSDL show the filament width increasing as %RH increases, up until 80% RH, after which the individual filaments are difficult to discern because they all merge into one unified feature. Chapter 5 investigated the effect of thermal treatment and presence of a NSDL on the type and rate of FFC on AA6014 and AA6022. It was concluded that thermal treatment has negligible effect on surfaces without a NSDL. The effect of thermal treatment is more clearly seen on surfaces with a NSDL with both AA6014 and AA6022 showing the greatest corrosion rates and greatest potential difference at 140°C. The thermal treatment temperatures of 210°C to 250°C showed the greatest corrosion resistance, with the slowest corrosion rates and smallest potential difference. Chapter 6 investigated the effect of inhibitors and presence of a NSDL on the type and rate of FFC on AA6014 and AA6022. Three inhibitors were investigated, at a range of pigment volume fractions (PVF): hydrotalcite (HT), diethyldithiocarbamate (HT-DEDTC) and cationic benzotriazole (CBP). The general efficiency ranking order of the pigments used could be described as CBP > HT > HT-DEDTC. Finally, chapter 7 shows the preliminary work investigating the effect of mechanical deformation on FFC on AA6014 and AA6022. The preliminary work identified the defects on the bent samples for AA6014 and AA6022 show that the corrosion observed mirrors the flat samples without a NSDL present. There was no evidence of a corrosion pattern on the apex of the bend that mirrored the corrosion pattern observed on the flat sample when a NSDL is present.
Revolutionizing Cattle Breeding: Studies on In-vitro Embryo Production in Sahiwal Cows with Sexed Semen
Authors: Farheen S. R. , Arunakumari G. , Reddy K. R. C. , Reddy K. C. S. , Nagaraj P. , Priyanka B.
Published: July 2024

The experiment was conducted during 2023 (January–October), at Embryo transfer and in-vitro fertilization project, Department of Veterinary Gynaecology and Obstetrics, College of Veterinary Science, Korutla, Jagitial district, Telangana, India. The objective of the present study was to evaluate the effect of Follicle Stimulating Hormone stimulation on In-Vitro Fertilization rates with sexed semen in-vitro matured oocytes collected from Sahiwal cows via Ovum Pick-Up procedure. Irrespective of the estrus cycle, 20 non-lactating cows were divided into two equal groups. Animals in group 1 (non-stimulated, n=10) were subjected to ovum pick-up once at the random stage of the estrous cycle. Animals in group 2 (FSH Stimulated, n=10) were put under CIDR+FSH super stimulation protocol and subjected to OPU after 36 hours of coasting period. Viable oocytes were in-vitro fertilized using sexed-sorted semen after 24 hours of In-vitro maturation. Follicle stimulating hormone stimulation increased the secondary polar body extrusion rate (non-stimulated, 69.10±2.00% vs FSH stimulated, 79.84±1.55%), cleavage rate on day 1(non-stimulated, 60.69±3.04% vs FSH stimulated, 69.10±2.26%), cleavage rate on day 3 (non-stimulated, 35.62±3.32 vs FSH stimulated, 43.59±1.90), mean number of In-vitro produced blastocysts animal-1 (non-stimulated, 1.50±0.16 vs. FSH-treated, 4.10±0.23%) and blastocyst conversion rate (non-stimulated, 23.98±2.39% vs FSH-treated, 34.35±3.42%). We concluded that FSH stimulation was effective in improving In-vitro oocyte competence for embryo production in non-lactating Sahiwal cows with sexed semen.