bluuebunny/crossref_metadata_2025_split huggingface dataset:
Digital Competency among Students
Authors: Zulkarnain Nordelina , Abdul Rahman Safawi , Yusoff Muhammad Saiful Anuar 
Published: July 2021

IR4.0 technologies enable the learning to be conducted in an easier way and meaningful manner. Many online learning platforms such as Google Classrooms, Frog Classrooms and MOOCS are developed based on the IR4.0 technologies. Students should have necessary competencies in coping with IR4.0 learning technologies. However, there is a lack of digital skills among students as reported in the literature. This study investigates the level of digital competency among students in response to the prescribed issue. The samples were 389 students studying multiple academic programs in UiTM, Kelantan Branch. By adopting the questionnaires used in previous research, this study specifically measures the information and data literacy, communication, safety, digital content creation and problem-solving competencies following the DigComp Framework. The SPSS version 22 was employed for data analysis. The results indicate lowest score in digital content creations compared to other four competencies. The potential implication of this study is the emphasis on this competence as this skill requested is critical in digital gig economy.
DOMINATION NUMBER IN THE ANNIHILATING-SUBMODULE GRAPH OF MODULES OVER COMMUTATIVE RINGS
Authors: ANSARI-TOROGHY Habibollah , HABIBI Shokoufeh 
Published: July 2021

Let $M$ be a module over a commutative ring $R$. The
annihilating-submodule graph of $M$, denoted by $AG(M)$, is a
simple undirected graph in which a non-zero submodule $N$ of $M$
is a vertex if and only if there exists a non-zero proper
submodule $K$ of $M$ such that $NK=(0)$, where $NK$, the product
of $N$ and $K$, is denoted by $(N:M)(K:M)M$ and two distinct
vertices $N$ and $K$ are adjacent if and only if $NK=(0)$. This
graph is a submodule version of the annihilating-ideal graph and
under some conditions, is isomorphic with an induced subgraph of
the Zariski topology-graph $G(\tau_T)$ which was introduced in [H.
Ansari-Toroghy and S. Habibi, Comm. Algebra, 42(2014), 3283-3296].
In this paper, we study the domination number of $AG(M)$ and some
connections between the graph-theoretic properties of $AG(M)$ and
algebraic properties of module $M$.
ABELIAN GROUPS WITH LEFT COMORPHIC ENDOMORPHISM RINGS
Authors: CALUGAREANU Grigore , CHEKHLOV Andrey 
Published: July 2021

A ring $R$ is called left comorphic if for every $a\in R$ there exists $b\in
R$ such that the left and right annihilators satisfy $Ra=l(b)$ and
$r(a)=bR$. In this paper, the Abelian groups with left comorphic
endomorphism rings are completely determined.
$\pi$-BAER $\ast$-RINGS
Authors: SHAHIDIKIA Ali , JAVADI Hamid Haj Seyyed , MOUSSAVI Ahmad 
Published: July 2021

A $\ast$-ring
$R$ is called a $\pi$-Baer $\ast$-ring, if for any projection invariant left ideal $Y$ of $R$, the right annihilator of $Y $
is generated, as a right ideal, by a projection.
In this note, we
study some properties of such $\ast$-rings.
We indicate interrelationships between the $\pi$-Baer $\ast$-rings and related classes of rings such as
$\pi$-Baer rings, Baer $\ast$-rings, and quasi-Baer $\ast$-rings. We announce several
results on $\pi$-Baer $\ast$-rings.
We show that this notion is well-behaved with respect to
polynomial extensions and full matrix rings.
Examples are provided to explain and delimit our results.
A NOTE ON SATURATED MULTIPLICATIVELY CLOSED SETS
Authors: BADIE Mehdi 
Published: July 2021

In this paper, we introduce and study $ \mathcal{H}_Y $-s.m.c. and strong $ \mathcal{H}_Y $-s.m.c. sets and give some connections between them and lattice ideals of $ \mathcal{H}_Y $. Also, we introduce an ideal $ R_S $, for each subset set $ S $ of a ring $ R $. We prove a ring $ R $ is a Gelfand ring if and only if $ R_S $ is an intersection of maximal ideals, for every s.m.c. set $ S $ of $ R $.
ON THE GORENSTEIN PROPERTY OF THE EHRHART RING OF THE STABLE SET POLYTOPE OF AN H-PERFECT GRAPH
Authors: MIYAZAKI Mitsuhiro 
Published: July 2021

In this paper,
we give a criterion of the Gorenstein property of
the Ehrhart ring of the stable set polytope of
an h-perfect graph:
the Ehrhart ring of the stable set polytope of an h-perfect graph $G$ is Gorenstein if and only if
(1)
sizes of maximal cliques are constant (say $n$) and
(2)
(a)
$n=1$,
(b)
$n=2$ and there is no odd cycle without chord and length at least 7 or
(c)
$n\geq 3$ and there is no odd cycle without chord and length at least 5.
ANALISIS KAPASITAS DAN KINERJA LALU LINTAS DI JALAN H.R. RASUNA SAID JAKARTA
Authors: Jaya Edmund Surya , Najid Najid 
Published: July 2021

Some of the main roads in South Jakarta, one of which is Jalan H.R. Rasuna Said, which is always crowded with passing vehicles, both residents of Jakarta and Jabodetabek, traffic on Jalan HR Rasuna Said Jakarta often experiences congestion, one of the causes is the increase in the number of vehicles in the city and also traffic performance which is not matched by an increase in number. road users. The increase in the volume of traffic will cause a change in behavior towards traffic performance, based on the guidelines of MKJI 1997 (Manual of Indonesian Road Capacity) the value of road capacity is C = 6968 pcu/km with a free flow speed of Fv = 59,55 km/hour while the capacity Greenberg's selected model produces a capacity of C = 11384 pcu/km with a free flow speed of Sff = 49,72 km/hour while the condition of the passing vehicle exceeds the basic capacity based on MKJI 1997, namely the maximum volume of V = 10635 pcu/km and with a speed of S = 18,25 km/hour so that the research model that will be used as a reference for the next calculation is the Greenberg model. ABSTRAKBeberapa ruas jalan raya di Jakarta Selatan salah satunya adalah jalan H.R. Rasuna Said yang selalu dipadati dengan kendaraan yang melintas baik itu warga Jakarta maupun dari Jabodetabek, lalu lintas di Jalan H.R Rasuna Said Jakarta sering sekali mengalami kemacetan salah satu penyebabnya adalah peningkatan jumlah kendaraan di dalam kota dan juga kinerja lalu lintas yang tidak diimbangi oleh meningkatnya jumlah pengguna jalan. Peningkatan jumlah volume lalu lintas akan menyebabkan perubahan perilaku terhadap kinerja lalu lintas, berdasarkan pedoman MKJI 1997 (Manual Kapasitas Jalan Indonesia) nilai kapasitas ruas jalan sebesar C = 6968 smp/km dengan kecepatan arus bebas sebesar Fv = 59,55 km/jam sedangkan kapasitas model terpilih Greenberg menghasilkan kapasitas C = 11384 smp/km dengan kecepatan arus bebas Sff = 49,72 km/jam sedangkan kondisi kendaraan yang melintas melebihi kapasitas dasar bedasarkan MKJI 1997 yaitu volume maksimum sebesar V = 10635 smp/km dan dengan kecepatan S = 18,25 km/jam sehingga model penelitian yang akan digunakan sebagai acuan perhitungan selanjutnya adalah model Greenberg.
Antecedentes del incidente de desacato, su doctrina y marco legal:
Authors: Lozano Cristian Andrés , Pérez Medina Paola Ximena 
Published: July 2021

Este artículo constituye la parte introductoria del trabajo de investigación denominado el “Desarrollo del incidente de desacato y el trámite aplicado por los Jueces Constitucionales. Estudio de caso, Neiva – Huila, Colombia (2012-2017)”, el cual tiene por objetivo principal determinar el procedimiento que los Jueces Constitucionales de la ciudad de Neiva han demarcado para garantizar el cumplimiento de las sentencias de tutela en el ejercicio de su potestad coercitiva, implementada para garantizar la protección de los derechos fundamentales salvaguardados en sede judicial, durante el periodo previamente enunciado.

Su contenido se centra en realizar una contextualización de la creación de la acción de tutela en el ordenamiento jurídico colombiano, a partir de la Asamblea Constituyente en 1991, la cual introdujo el mecanismo en el artículo 86 de la Carta Política. En segundo lugar, se analiza el desarrollo normativo del mecanismo de protección constitucional, a partir del Decreto 2591 de 1991 y demás disposiciones legales que han proporcionado modificaciones a sus disposiciones generales. Finalmente, el propósito de este capítulo consiste en verificar respecto de la acción de tutela y del incidente de desacato, qué investigaciones y cuáles autores han estudiado sobre el tema.
كوردبوون و ناسيوناليزم لاى دڵدارى شاعير
Authors: عبدالله أحمد محمود 
Published: July 2021

به شێک لە شيعره‌كانى دڵدار هه‌ڵگرى گوتارى سياسين‌، هه‌ره‌وه‌ها گه‌ڕانه‌وه‌ بۆ ئه‌و پێشينه‌ ڕۆشنبيرو شه‌پۆڵى بيرى ناسيوناليستى دواى مۆدێرنيته‌ يه‌، كه‌ دڵدار پێوه‌يان كاريگه‌ر بووه‌. به‌ جۆرێك بيركردنه‌وه‌ى شاعير واى كردووه‌، دواى پرسيارى (ئاسه‌ف)ى براگه‌وره‌ى دڵدار له‌ باره‌ى چیبوونى شاعير، وه‌ك يه‌كه‌م پرسيارله‌ كوردبوون، كه‌ به‌يه‌كه‌م ده‌سپێك و سه‌رهه‌ڵدانى بيرى نه‌ته‌وايه‌تى و كوردبوون لاى شاعير گه‌شه‌ ده‌كات. دواى ئه‌وه‌ش دروستكردنى گروپ و ده‌سته‌ بۆ به‌كارهێنانى هێز بۆ سه‌پاندنى بيرى نه‌ته‌وايه‌تى له‌ سه‌ره‌تايه‌كى زوو له‌ ناو منداڵان، به‌ناوى گروپى (به‌چه‌ شێران) له‌ خوێندنگه‌يه‌كى سه‌ره‌تايى ئه‌مه‌ سه‌ره‌تايه‌كى به‌هێزه‌ بۆ كاركردنى دڵدار له‌سه‌ر ئه‌م بابه‌ته‌ له‌و سه‌رده‌مه‌دا. توێژينه‌وه‌كه‌مان له‌ سێ ته‌وه‌ر پێكديت‌. ته‌وه‌رى يه‌كه‌م بريتيه‌ له‌ كورته‌يه‌ك له‌ ژيان و بيوگرافياى شاعير و وێستگه‌كانى خه‌بات له‌ ناو گروپ و كۆمه‌ڵه‌ سياسيه‌كاندا. ته‌وه‌رى دووه‌م بريتييه‌ له‌ پێناسه ‌و چه‌مكى ناسيوناليزم و ناسيوناليزمى كوردى و مێژووسه‌رهه‌ڵدانى و كاريگه‌رى ئه‌و ته‌وژم و بزاڤه‌ نه‌ته‌وه‌ييانه‌ كه‌ پێشتر له‌ ڕۆژئاوادا سه‌رى هه‌ڵدابوو و له‌ڕێگه‌ى شاعيران و ڕۆشنبيره‌كورده‌كانه‌وه‌ وه‌ك بيرهاورده‌ى كوردستان كرابوو. ته‌وه‌رى سێيه‌م بريتيه‌ له‌ سه‌رهه‌ڵدانى هه‌ستى كوردبوون و سه‌پاندنى وه‌ك هێز به‌سه‌ر كۆمه‌ڵگه‌ى كورده‌واريدا، ودواتر‌ شڕۆڤه‌يه‌كى سايكۆىسۆسيۆلۆژى كه‌سايه‌تى دڵدار له‌ ناو سرودى ئه‌ى ڕه‌قيبمان کردووە .له‌ كۆتايدا ئه‌نجامى توێژنه‌وه‌كه‌و ليستى سه‌چاوه‌كان و پوخته‌ى توێژينه‌وه‌كه‌مان خستۆته‌ڕوو.
کاریگەری موزیک لەسەر توانستی بیرکاری منداڵان
Authors: محمد سرود فؤاد , محمد دلاوەر مصطفی , محمد دلاوەر مصطفی 
Published: July 2021

ئەم توێژینەوەیە لەسەر منداڵانی تەمەن ١١ ساڵیدا ئەنجامدراوە، دەربارەی ئاستی زانستی ئەو منداڵانەی كە بۆ ماوەی چوار مانگ ڕاهێنانی موزیكیان ئەنجام داوە، لە بەرامبەردا ئەو منداڵانەی كە ڕاهێنانی موزیكیان ئەنجام نەداوە. بۆ ئەم مەبەستەش دوو گروپ دەستنیشان كران (Aو B) لە منداڵانی هاوتەمەن، هەروەها لە هەمان سستمی خوێندن و باری ئابووری و كۆمەڵایەتیدا بوون. میتۆدۆلۆجیای توێژینەوەكە پەیوەستە بە رێبازی ئەزموونگەری، لە نێوان گروپی تاقیكاری و گروپی كۆنترۆل، بە مەبەستی پێوانی گۆڕاوی كاریگەری راهێنانی موزیك لەسەر گۆڕاوی ئاستی توانستی منداڵان لە بابەتی بیركاریدا. كۆمەڵگەی توێژینەوەكە بریتیە لە قوتابیانی قوتابخانەی ئیشقی سەرەتایی ناحكومی لە شاری هەولێر. سامپڵی توێژینەوەكە لە پۆلەكانی پێنجەمدا دەستنیشانكران. هەردوو گروپەكە لە بابەتی زانستی (بیركاری) تاقیكردنەوەی تێرمی یەكەمی قوتابخانەیان پێكرا وەكو تێستی پێشینە (Pre Test)، دوای تەواوبوونی چوار مانگ لە راهێنانەكە دووبارە تاقیكردنەوەی تێرمی دووەمی قوتابخانە وەكو تێستی دواییان (Post Test) پێكرا. لە دەرئەنجامی توێژینەوەكە بۆمان دەركەوت كە گروپی ڕاهێندراو (A) كۆنمرەكانیان بەرزتر بوون لە گروپی كۆنتڕۆڵكراودا(B).
Does Contrast Dose Based in Lean body Weight Allow Lesser Volumes on High BMI Patients for CT Angiography?
Authors: Chandrasekharan Rajsekar , Kulkarni Chinmay Bhimaji , Pullara Sreekumar Karumathil , Moorthy Srikanth 
Published: July 2021

Objectives:
The objective was to evaluate whether contrast dose based on lean body weight (LBW) protocol has the potential to reduce contrast volume in patients with high basal metabolic index (BMI) compared to total body weight (TBW)-based protocols.

Material and Methods:
The Institutional Review Board approval was obtained for this prospective study. Initially, a pilot study with a sample size of 150 patients was conducted to estimate the average fat fraction in our population. Then, CT angiography (CTA) for the thoracic and abdominal aorta was performed using a 256-multidetector computed tomography scanner in 117 patients who were undergoing screening for aortic aneurysm and vascular assessment of prospective transplant donors. The patients were divided into two groups: A TBW group (n = 60) and LBW group (n = 57). Lean body weight (LBW) was estimated from the patient weight, height, and gender using Hume’s equation. The TBW group received 1.2 ml/kg contrast dose and the LBW group received 1.6 ml/kg contrast dose to achieve approximately equal iodine dose in both groups. Differences in the degree of aortic enhancement between the estimated LBW and TBW group were evaluated. In higher BMI patients (>25), the mean aortic enhancement (MAEnh) and the contrast volume delivered between the LBW and TBW group were compared.

Results:
Mean aortic enhancement (MAEnh) 422.45 (±74.5) Hounsfield unit (HU) in the TBW group and 432.67 (±69.4) HU in the LBW group showed no statistical difference (P = 0.439). In population with BMI >25, the contrast delivered in LBW protocol patients was significantly less (P = 0.00) compared to TBW protocol patients, with no significant difference in the MAEnh between the groups (P = 0.479).

Conclusion:
CTA using a LBW protocol helps to significantly reduce the volume of contrast delivered, especially in patients with BMI >25 compared to TBW protocol, without compromising the aortic enhancement.
ANALISIS PENGARUH DISTRIBUSI ZAKAT TERHADAP IMPLEMENTASI MAQASID SYARIAH PADA BAZNAS PROVINSI RIAU
Authors: Sastraningsih Ellyan , Suryadi Nanda 
Published: July 2021

Penelitian ini bertujuan untuk mengetahui analisis pengaruh distribusi zakat terhadap implementasi maqasid syariah pada BAZNAS Provinsi Riau, serta bagaimana potensi zakat Provinsi Riau berdasarkan Maqasid Syariah dengan harapan kesejahteraan bagi masyarakat Provinsi Riau. Penelitian ini menggunakan metode deskriptif dengan pendekatan kualitatif. Model yang digunakan dalam penelitian ini adalah model kausalitas atau hubungan pengaruh. Untuk menguji hipotesis yang diajukan, menggunakan teknik analisis SEM (Structural Equation Model) dengan analisis data menggunakan pendekatan Partial Least Square (PLS). Pada penelitian ini digunakan data primer yang dikumpulkan dengan menggunakan kuesioner dengan jumlah 200 responden mustahik di Provinsi Riau. Penelitian ini menghasilkan penemuan yang menarik diantaranya, pertama pemeliharaan agama berpengaruh signifikan terhadap distribusi zakat efektif. Kedua pemeliharaan jiwa berpengaruh signifikan terhadap distribusi zakat efektif. Ketiga pemeliharaan akal berpengaruh signifikan terhadap distribusi zakat efektif. Keempat pemeliharaan keturunan berpengaruh signifikan terhadap distribusi zakat efektif. Kelima pemeliharaan harta berpengaruh signifikan terhadap distribusi zakat efektif.
МЕТОДИКА РАСЧЕТА МАГНИТНЫХ СЕПАРАТОРОВ С ФЕРРОМАГНИТНОЙ ШАРОВОЙ НАСАДКОЙ ДЛЯ ОЧИСТКИ СУСПЕНЗИЙ ОТ МАГНИТНЫХ ПРИМЕСЕЙ
Authors: Овчаренко А.Г. , Василишин М.С. 
Published: July 2021

Для повышения эффекта очистки суспензий от магнитных частиц экономически целесообразно в промышленных условиях использовать устройства с магнитными полями невысокой напряженности, но имеющими высокие градиенты магнитного поля в рабочем пространстве. В качестве таких устройств используются магнитные сепараторы с ферромагнитной шаровой насадкой. Для расчетов за основу взята модель процесса осаждения магнитных частиц в квазисплошном поглощающем экране магнитного фильтра, при этом предполагается, что рельеф зоны захвата в окрестности точек контакта намагниченных шаров будет в виде сегментов с характерными размерами rо и b. Анализ такой модели позволил отметить подобие рассмотренных процессов осаждения в магнитном сепараторе процессам адсорбции и в дальнейшем использовать элементы теории процесса адсорбции для расчетов таких сепараторов. Представлена методика расчета магнитных сепараторов с ферромагнитной шаровой насадкой для очистки суспензий от магнитных примесей. Экспериментальная проверка расчетных зависимостей при очистке антифрикционной присадки «Деста» подтвердила возможность использования предложенной методики для магнитных сепараторов с ферромагнитной шаровой насадкой
To increase the effect of cleaning suspensions from magnetic particles, it is economically feasible in industrial conditions to use devices with low-intensity magnetic fields, but having high magnetic field gradients in the working space. As such devices, magnetic separators with a ferromagnetic ball nozzle are used. The calculations are based on a model of deposition of magnetic particles in a magnetic absorbing screen, and it is assumed that the topography of the capture zone in the vicinity of the contact points of the magnetized balls will have the form of segments with characteristic sizes ro and b. The analysis of such a model allowed us to note the similarity of the considered deposition processes in the magnetic separator with the adsorption processes and to further use the elements of the theory of the adsorption process for the calculations of such separators. A method for calculating magnetic separators with a ferromagnetic ball nozzle for cleaning suspensions from magnetic impurities is presented. Experimental verification of the calculated dependences during the cleaning of the anti-friction additive "Desta" confirmed the possibility of using the proposed calculation method for magnetic separators with a ferromagnetic ball nozzle.
Результаты исследования ТЕМПЕРАТУРНЫХ ПАРАМЕТРОВ АВИАЦИОННОГО МАСЛА
Authors: Плахотникова М.А. , Лысянникова Н.А. , Ковальский Б.И. , Безбородов Ю.Н. 
Published: July 2021

Представлены экспериментальные данные показателей термоокислительной стабильности включающие: оптическую плотность, испаряемость, коэффициент термоокислительной стабильности, потенциальный ресурс, температуры начала процессов окисления, испарения и температурных преобразований, протекающие в смазочном масле и критические температуры этих процессов. Представлена графическая модель прогнозирования показателей термоокислительной стабильности для широкого диапазона температур на основании результатов испытания, полученных при трех температурах.
Experimental data on the indicators of thermal-oxidative stability are presented, including: optical density, volatility, coefficient of thermal-oxidative stability, potential resource, temperatures of the onset of oxidation, evaporation and temperature transformations occurring in the lubricating oil and critical temperatures of these processes. A graphical model for predicting the indicators of thermal-oxidative stability for a wide range of temperatures based on the test results obtained at three temperatures is presented.
ИНФОРМАЦИОННО-ИЗМЕРИТЕЛЬНАЯ СИСТЕМА ПРОЧНОСТНЫХ ИСПЫТАНИЙ НА ЭТАПЕ СТЕНДОВЫХ ИСПЫТАНИЙ ИЗДЕЛИЙ ИЗ ВЫСОКОЭНЕРГЕТИЧЕСКИХ МАТЕРИАЛОВ
Authors: Курбатов А.В. , Кондрашов Д.А. , Драничников И.А. , Попов Ф.А. 
Published: July 2021

Рассматривается разработанная на АО «ФНПЦ «Алтай» информационно-измерительная система (ИИС), предназначенная для автоматизации сбора и обработки результатов измерений при стендовых испытаниях изделий из высокоэнергетических материалов. Ее основной задачей является многоканальный сбор данных о результатах стендовых испытаний, обработка, документирование и хранение результатов измерений. Показано, что в процессе разработки, производства, доводки и серийного выпуска изделий из высокоэнергетических материалов особо важными являются прочностные испытания, позволяющие оценить работоспособность и технические характеристики, а также сроки хранения и эксплуатации.
The paper considers the information and measuring system (IMS) developed at the Altai Federal Research and Production Center JSC, designed to automate the collection and processing of measurement results during bench tests of products made of high-energymaterials. Its main task is multichannel collection of data on the results of bench tests, processing, documentation and storage of measurement results. It is shown that in the process of development, production, fine-tuning and serial production of products made of high-energy materials, strength tests are especially important, which make it possible to assess the performance and technical characteristics, as well as the storage and operation periods.
Estimation of Heterosis Among Potato (Solanum tuberosum L.) Crosses in Ethiopia
Authors: Workayehu Manamno , Mohammed Wassu , Abebe Tesfaye 
Published: July 2021

Determination of heterosis in tetraploid potato crosses is necessary for identification of superior genotypes for variety development or breeding program. However, producing heterotic potato genotypes through local crossing is not a common practice in Ethiopia. Hence, this study was conducted to estimate the magnitude of better, and standard check heteroses in potato clones that are produced from local crossing. This will help identify potential of hybrid for future breeding schemes. Heterosis of 75 clones were evaluated using a 9 x 9 Simple Lattice design. Results of the analysis of variance showed significant differences for all the growth characters, except medium-sized tubers and specific gravity of tuber. These results indicate the presence of genetic variability among the samples. The clones exhibited as high as 55.62 and 58.31 t.ha-1 marketable and total tuber yield, respectively. These clones also displayed mid, better parent and standard heterosis of 118.8%, 90.5% and 239.1%, respectively, for marketable tuber yield. This result indicates the presence of high magnitude heterosis which could be used to exploit the hybrid vigor. In addition, mid, better parent, and standard check heterosis were estimated at 79.36%, 61.04% and 209.17% for total tuber yield, respectively. Our results show the highest chance of getting heterotic offspring than parental and standard check varieties to developing new potato varieties. The information generated from this study would be valuable for researchers who intend to develop high-yielding varieties of potato
The Effects of Different Rates of Chicken Manure and Harvest Intervals on the Bioactive Compounds of Bitter Leaf (Vernonia amygdalina Del.)
Authors: Betty Betty , Aziz Sandra Arifin , Suketi Ketty 
Published: July 2021

Bitter leaf (Vernonia amygdalina Del.) is a valuable functional vegetable and traditional medicinal plant in many tropical countries including Indonesia. Bitter leaf is commonly used to remedy hypertension and diabetes among Indonesian people. The leaf extract comprises bioactive compounds such as sesquiterpene lactones, steroid glycosides, and flavonoids. Despite its growing market demand, there is insufficient data on agronomic practice in order to obtain optimum yield with high bioactive compounds. The experimental design used was a randomized complete block design with two factors namely chicken manure rates (0, 2.5, 5, and 7.5 kg per plant) and harvest intervals (2 and 3 months). There was a significant difference in fresh and dry weights of leaves, chlorophyll a and b, carotenoids, nitrogen concentration, anthocyanins, and flavonoids among different manure treatment. The highest concentration and production of bioactive compounds on the bitter leaf was found on the highest treatment of 7.5 kg chicken manure per plant. The harvest interval of three months significantly increased fresh and dry weights of leaves, concentration of anthocyanins, phosphorus, and potassium, uptake of phosphorus and potassium, and production of anthocyanins and flavonoids. Cultivation using chicken manure with frequent period of pruning can enhance the production of biomass as well as secondary metabolites in bitter leaf.