bluuebunny/crossref_metadata_2025 huggingface dataset:
A high-throughput pipeline for design and selection of peptides targeting the SARS-Cov-2 Spike protein
Authors: Wolfe Monica , Webb Sean , Chushak Yaroslav , Krabacher Rachel , Liu Yi , Swami Nathan , Harbaugh Svetlana , Chávez Jorge
Published: November 2021

Rapid design, screening, and characterization of biorecognition elements (BREs) is essential for the development of diagnostic tests and antiviral therapeutics needed to combat the spread of viruses such as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). To address this need, we developed a high-throughput pipeline combining in silico design of a peptide library specific for SARS-CoV-2 spike (S) protein and microarray screening to identify binding sequences. Our optimized microarray platform allowed the simultaneous screening of ~ 2.5 k peptides and rapid identification of binding sequences resulting in selection of four peptides with nanomolar affinity to the SARS-CoV-2 S protein. Finally, we demonstrated the successful integration of one of the top peptides into an electrochemical sensor with a clinically relevant limit of detection for S protein in spiked saliva. Our results demonstrate the utility of this novel pipeline for the selection of peptide BREs in response to the SARS-CoV-2 pandemic, and the broader application of such a platform in response to future viral threats.
Narrow-band random Raman lasing from Rhodamine 6G assisted by cascaded stimulated Raman scattering effect
Authors: Hosseini Mandana Sadat , Yazdani Elnaz , Sajad Batool
Published: November 2021

This study reports the first experimental observation of cascaded stimulated Raman scattering (SRS) generation in a colloidal disordered medium. Generation of the cascaded effect requires both a high Raman gain and pump power in the disordered medium. Here, to extend effective path lengths of photons into the Raman gain medium for producing additional SRS processes, ZnO microspheres with abundant nano-protrusions as suitable scattering centers are proposed. It is explained that nano-protrusions on the surface of the spheres can act as nano reflectors and significantly provide potent feedback in the disordered system. This provided feedback via nano-protrusions boosts cascaded SRS generation to allow the appearance of higher Raman signals of Rhodamine 6G dye solution at a low scatterer concentration of 5 mg/ml. The threshold for the formation of the first Raman signal is measured at about 60 mJ/pulse. Also, the evolution of Raman signals under several fixed pump pulses is examined to investigate the stability from pulse to pulse. Our findings provide promising perspectives for achieving the single-frequency laser sources and generate desirable wavelengths for specific applications.
A traumatic injury mortality prediction (TRIMP) based on a comprehensive assessment of abbreviated injury scale 2005 predot codes
Authors: Wang Muding , Zhang Guohu , Cong Degang , Zeng Yunji , Fan Wenhui , Shen Yi
Published: November 2021

Abbreviated Injury Scale (AIS)-based systems such as injury severity score (ISS), exponential injury severity score (EISS), trauma mortality prediction model (TMPM), and injury mortality prediction (IMP), classify anatomical injuries with limited accuracy. The widely accepted alternative, trauma and injury severity score (TRISS), improves the prediction rate by combining an anatomical index of ISS, physiological index (the Revised Trauma Score, RTS), and the age of patients. The study introduced the traumatic injury mortality prediction (TRIMP) with the inclusion of extra clinical information and aimed to compare the ability against the TRISS as predictors of survival. The hypothesis was that TRIMP would outperform TRISS in prediction power by incorporating clinically available data. This was a retrospective cohort study where a total of 1,198,885 injured patients hospitalized between 2012 and 2014 were subset from the National Trauma Data Bank (NTDB) in the United States. A TRIMP model was computed that uses AIS 2005 (AIS_05), physiological reserve and physiological response indicators. The results were analysed by examining the area under the receiver operating characteristic curve (AUC), the Hosmer–Lemeshow (HL) statistic, and the Akaike information criterion. TRIMP gave both significantly better discrimination (AUCTRIMP, 0.964; 95% confidence interval (CI), 0.962 to 0.966 and AUCTRISS, 0.923; 95% CI, 0.919 to 0.926) and calibration (HLTRIMP, 14.0; 95% CI, 7.7 to 18.8 and HLTRISS, 411; 95% CI, 332 to 492) than TRISS. Similar results were found in statistical comparisons among different body regions. TRIMP was superior to TRISS in terms of accurate of mortality prediction, TRIMP is a new and feasible scoring method in trauma research and should replace the TRISS.
Teaching and Learning in the School Chemistry Laboratory
Authors: Hofstein Avi , Hugerat Muhamad
Published: November 2021

Research into the educational effectiveness of chemistry practical work has shown that the laboratory offers a unique mode of instruction, assessment and evaluation. Laboratory work is an integral and important part of the learning process, used to encourage the development of high order thinking and learning alongside high order learning and thinking skills such as argumentation and metacognition.

Authored by renowned experts in the field of chemistry education, this book provides a holistic approach to cover all issues related to learning and teaching in the chemistry laboratory. With sections focused on developing the skill sets of teachers, as well as approaches to supporting students in the laboratory, the book offers a comprehensive look at vicarious instruction methods, teacher and students' roles, and the blend with ICT, simulations, and other effective approaches to practical work. The book concludes with a focus on retrospective issues, followed-up with a look to the future of laboratory learning.

A product of nearly fifty years of research, this book will be useful for chemistry teachers, curriculum developers, researchers in chemistry education, and professional development providers.
Adsorption of lysozyme into a charged confining pore
Authors: Caetano Daniel L. Z. , Metzler Ralf , Cherstvy Andrey G. , de Carvalho Sidney J.
Published: November 2021

The hen egg-white lysozyme adsorbs into a charged confining pore in two orientations depending on the pH. The pKaof the residues closer to the pore surface is significantly affected by the protein–pore electrostatic interactions.
Experimental and theoretical studies of the gas-phase reactions of O(1D) with H2O and D2O at low temperature
Authors: Hickson Kevin M. , Bhowmick Somnath , Suleimanov Yury V. , Brandão João , Coelho Daniela V.
Published: November 2021

Measurements of the O(1D) + H2O, D2O reactions show that these processes become much more rapid below 100 K.
Traditional Chinese medicine residue-derived micropore-rich porous carbon frameworks as efficient sulfur hosts for high-performance lithium–sulfur batteries
Authors: Liang Junfei , Xu Yuqi , Li Chao , Yan Chen , Wang Zewei , Xu Junfeng , Guo Lili , Li Yufeng , Zhang Yangang , Liu Hantao , Wang Hua
Published: November 2021

A micropore-rich porous carbon framework from the traditional Chinese medicine shows great potential as sulfur host for lithium–sulfur batteries.
Regulating the magnetic properties of seven-coordinated Dy(iii) single-ion magnets through the effect of positional isomers on axial crystal-field
Authors: Dong Yubao , Zhu Li , Yin Bing , Zhu Xinrui , Li Dongfeng
Published: November 2021

Six Dy(iii) SIMs based on positional isomerism strategy were synthesized. Their SMM properties are noteworthily modulated by positional isomerism of methoxyl group, which changed both local symmetry and electrostatic potential around the Dy(iii) ion.
Modified pyridine–triazole and 2,2′-bipyrimidine ligands generating robust titanium complexes constructed around a TiO4N2 core
Authors: Barloy L. , Heinrich B. , Scarpi-Luttenauer M. , Douce L. , Henry M. , Khalil G. , Klein D. , Kyritsakas N. , Mobian P.
Published: November 2021

The mesogenic properties of pyridine–triazole and bipyrimidine chelates, and those of their derived robust Ti(iv) complexes have been investigated.
Progress of metal nanoclusters in nucleic acid detection
Authors: Lin Xia , Zou Lianjia , Lan Weisen , Liang Chunxian , Yin Yanchun , Liang Jian , Zhou Yuanming , Wang Jianyi
Published: November 2021

Metal nanoclusters (MNCs), including Ag NCs, Cu NCs, and Au NCs, can be used as fluorescent probes for nucleic acid testing. Identification of DNA fragments and trace detection of miRNA (LOD as low as aM) can be achieved.
Green synthesis of submicron copper powder with narrow particle size distribution via a simple methanol thermal reduction
Authors: Chen Xiaoping , Fu Jiaqi , Li Jiangang , Chen Bohong , Yang Lei , Li Zhichun
Published: November 2021

Submicron copper powder with narrow particle size distribution was synthesized via a simple methanol thermal reduction with no organic product.
Methane detection and quantification in the upstream oil and gas sector: the role of satellites in emissions detection, reconciling and reporting
Authors: Cooper Jasmin , Dubey Luke , Hawkes Adam
Published: November 2021

Satellites could revolutionise the way global oil and gas methane is reported. There are many barriers to overcome before satellites can play an active role in methane emissions reporting.
Lyophyllum decastesfruiting body polysaccharide alleviates acute liver injury by activating the Nrf2 signaling pathway
Authors: Zhang Fengpei , Xu Hui , Yuan Yuan , Huang Haichen , Wu Xiaoping , Zhang Junli , Fu Junsheng
Published: November 2021

LDFP have high antioxidant, hypoglycemic, hypolipidemic, hepatoprotective, anti-tumor, and anticancer activities.
Synthesis and redox reactions of binuclear zinc(ii)–thiolate complexes with elemental sulfur
Authors: Naskar Tilak , Pal Nabhendu , Majumdar Amit
Published: November 2021

The synthesis, characterization and reactivity of a series of binuclear zinc(ii) complexes are described featuring the redox reaction of coordinated thiolates with elemental sulfur.
Visible-light-driven H2 production from heterostructured Zn0.5Cd0.5S–TiO2 photocatalysts modified with reduced graphene oxides
Authors: Qin Na , Mao Aojie , Zou Junhua , Mi Liwei , Wu Ling
Published: November 2021

Benefiting from the heterojunction structure and compositional features, the optimized 0.5%RGO/50%Zn0.5Cd0.5S–TiO2 composites exhibited considerable photocatalytic activities for H2 evolution.
Amide bond formation in aqueous solution: direct coupling of metal carboxylate salts with ammonium salts at room temperature
Authors: Tung Truong Thanh , Nielsen John
Published: November 2021

Herein, we report a green, expeditious, and practically simple protocol for direct coupling of carboxylate salts and ammonium salts under ACN/H2O conditions at room temperature without the addition of tertiary amine bases.
Preparation of a novel bridged bis(β-cyclodextrin) chiral stationary phase by thiol–ene click chemistry for enhanced enantioseparation in HPLC
Authors: Zhang Ning , Guo Siyu , Gong Bolin
Published: November 2021

Separation of chiral compounds on HTCDP.
Copper(ii) ketimides in sp3 C–H amination
Authors: Jayasooriya Isuri U. , Bakhoda Abolghasem (Gus) , Palmer Rachel , Ng Kristi , Khachemoune Nour L. , Bertke Jeffery A. , Warren Timothy H.
Published: November 2021

Commercially available benzophenone imine (HNCPh2) reacts with β-diketiminato copper(ii) tert-butoxide complexes [CuII]–OtBu to form isolable copper(ii) ketimides [CuII]–NCPh2 that serve as intermediates in catalytic sp3 C−H amination via radical relay.
Deciphering the effect of replacing thiophene with selenophene in diketopyrrolopyrrole (DPP)-based low cost hole transport materials on the performance of perovskite solar cells
Authors: Kini Gururaj P. , Parashar Mritunjaya , Shukla Vivek Kumar , Singh Ranbir
Published: November 2021

Diketopyrrolopyrrole (DPP)-based low-cost hole-transporting materials are designed via facile approaches for efficient perovskite solar cells, which endowed impressive PCE over 16% along with ambient stability.
Mechanism insights into the role of the support mineralization layer toward ultrathin polyamide nanofilms for ultrafast molecular separation
Authors: Song Qiangqiang , Lin Yuqing , Ueda Takafumi , Istirokhatun Titik , Shen Qin , Guan Kecheng , Yoshioka Tomohisa , Matsuyama Hideto
Published: November 2021

In this study, a highly perm-selective thin-film composite (TFC) nanofilm was successfully developedviasilicification interlayer-mediated interfacial polymerization.
Modulation of carbon induced persulfate activation by nitrogen dopants: recent advances and perspectives
Authors: Wang Ziqian , Du Chunyu , Lei Shangwu , Ding Dahu , Chen Rongzhi , Yang Shengjiong , Cai Tianming
Published: November 2021

N dopants could regulate the electronic structure of carbon matrix, improve the adsorption affinity between carbon surface and PS anions, and thus pose significant effect on the carbon induced PS-AOPs.
Accelerated hydrogen evolution reaction in Ni3P/MoP2/MoO2 tri-phase composites with rich crystalline interfaces and oxygen vacancies achieved by plasma assisted phosphorization
Authors: Zhang Baoan , Jiang Zhongqing , Shang Xiaonan , Li Shasha , Jiang Zhong-Jie
Published: November 2021

P-NiMoP nanorods (NRs) comprising tri-phases of MoP2, Ni3P and MoO2 with rich crystalline interfaces and oxygen vacancies in MoO2 have been synthesized by plasma-assisted phosphorization of NiMoO4 NRs.
The HD 137496 system: A dense, hot super-Mercury and a cold Jupiter
Authors: Azevedo Silva T. , Demangeon O. D. S. , Barros S. C. C. , Armstrong D. J. , Otegi J. F. , Bossini D. , Delgado Mena E. , Sousa S. G. , Adibekyan V. , Nielsen L. D. , Dorn C. , Lillo-Box J. , Santos N. C. , Hoyer S. , Stassun K. G. , Almenara J. M. , Bayliss D. , Barrado D. , Boisse I. , Brown D. J. A. , Díaz R. F. , Dumusque X. , Figueira P. , Hadjigeorghiou A. , Hojjatpanah S. , Mousis O. , Osborn A. , Santerne A. , Strøm P. A. , Udry S. , Wheatley P. J.
Published: November 2021

Context. Most of the currently known planets are small worlds with radii between that of the Earth and that of Neptune. The characterization of planets in this regime shows a large diversity in compositions and system architectures, with distributions hinting at a multitude of formation and evolution scenarios. However, many planetary populations, such as high-density planets, are significantly under-sampled, limiting our understanding of planet formation and evolution.

Aims. NCORES is a large observing program conducted on the HARPS high-resolution spectrograph that aims to confirm the planetary status and to measure the masses of small transiting planetary candidates detected by transit photometry surveys in order to constrain their internal composition.

Methods. Using photometry from the K2 satellite and radial velocities measured with the HARPS and CORALIE spectrographs, we searched for planets around the bright (Vmag = 10) and slightly evolved Sun-like star HD 137496.

Results. We precisely estimated the stellar parameters, M* = 1.035 ± 0.022 M⊙, R* = 1.587 ± 0.028 R⊙, Teff = 5799 ± 61 K, together with the chemical composition (e.g. [Fe/H] = −0.027 ± 0.040 dex) of the slightly evolved star. We detect two planets orbiting HD 137496. The inner planet, HD 137496 b, is a super-Mercury (an Earth-sized planet with the density of Mercury) with a mass of Mb = 4.04 ± 0.55 M⊕, a radius of Rb = 1.31−0.05+0.06 R⊕, and a density of ρb = 10.49−1.82+2.08 g cm-3. With an interior modeling analysis, we find that the planet is composed mainly of iron, with the core representing over 70% of the planet’s mass (Mcore / Mtotal = 0.73−0.12+0.11). The outer planet, HD 137496 c, is an eccentric (e = 0.477 ± 0.004), long period (P = 479.9−1.1+1.0 days) giant planet (Mc sinic = 7.66 ± 0.11 MJup) for which we do not detect a transit.

Conclusions. HD 137496 b is one of the few super-Mercuries detected to date. The accurate characterization reported here enhances its role as a key target to better understand the formation and evolution of planetary systems. The detection of an eccentric long period giant companion also reinforces the link between the presence of small transiting inner planets and long period gas giants.
A polarimetric study of asteroids in comet-like orbits
Authors: Geem Jooyeon , Ishiguro Masateru , Bach Yoonsoo P. , Kuroda Daisuke , Naito Hiroyuki , Hanayama Hidekazu , Kim Yoonyoung , Kwon Yuna G. , Jin Sunho , Sekiguchi Tomohiko , Okazaki Ryo , Vaubaillon Jeremie J. , Imai Masataka , Oono Tatsuharu , Futamura Yuki , Takagi Seiko , Sato Mitsuteru , Kuramoto Kiyoshi , Watanabe Makoto
Published: November 2021

Context. Asteroids in comet-like orbits (ACOs) consist of asteroids and dormant comets. Due to their similar appearance, it is challenging to distinguish dormant comets from ACOs via general telescopic observations. Surveys for discriminating dormant comets from the ACO population have been conducted via spectroscopy or optical and mid-infrared photometry. However, they have not been conducted through polarimetry.

Aims. We conducted the first polarimetric research of ACOs.

Methods. We conducted a linear polarimetric pilot survey for three ACOs: (944) Hidalgo, (3552) Don Quixote, and (331471) 1984 QY1. These objects are unambiguously classified into ACOs in terms of their orbital elements (i.e., the Tisserand parameters with respect to Jupiter TJ significantly less than 3). Three ACOs were observed by the 1.6 m Pirka Telescope from UT 2016 May 25 to UT 2019 July 22 (13 nights).

Results. We found that Don Quixote and Hidalgo have polarimetric properties similar to comet nuclei and D-type asteroids (optical analogs of comet nuclei). However, 1984 QY1 exhibited a polarimetric property consistent with S-type asteroids. We conducted a backward orbital integration to determine the origin of 1984 QY1, and found that this object was transported from the main belt into the current comet-like orbit via the 3:1 mean motion resonance with Jupiter.

Conclusions. We conclude that the origins of ACOs can be more reliably identified by adding polarimetric data to the color and spectral information. This study would be valuable for investigating how the ice-bearing small bodies distribute in the inner Solar System.
In vitro cultured and supply chain porang in South Sumatra
Authors: Bidarti Agustina , Yulius  , Purbiyanti Erni
Published: November 2021

The objectives of the study are first, farmers in P4S Karya Tani can obtain superior porang seeds by regenerating porang in vitro culture through organic plus liquitermy fertilizer. Second, analyzing the media for growing tissue and the concentration of each porang plant media in P4S. Third, analysis of the supply chain structure of porang in P4S. This study uses quantitative and qualitative approaches with simple randomized design methods and SCOR methods. Based on the experiment, vitro culture of porang in P4S using liquitermy fertilizer, there were nineteen out of thirty porang plant accessions which had the potential as new clones for seedlings with an average tuber of 6.00 - 99.88% larger than the parent. The porang supply chain in P4S needs to be developed by involving wider stakeholders. This study shows that the seed production rate is better with liquitermy fertilizer in the porang in vitro culture. However, further evaluation is needed in analyzing genetic traits and glucomannan levels
The Blue Ocean Strategy Analysis of Chrysanthemum Flower
Authors: Fitriany Nurunisa Venty , Triani Dewi Karina
Published: November 2021

West Java as the central production of flower commodity in Indonesia is supported by 9 central districts, which Cianjur, one of the top three, contributes 53.67% of the West Java flower production. A high competition within the flower businesses result a growing issue for PT Alam Indah Bunga Nusantara (Alinda) as one of Chrysanthemum business leader in Cianjur. Thus, the company considers a more relevant strategy which makes this research aims on examining a) the competition factors, b) company's industrial situation, and c) different business strategy by using the Blue Ocean Strategy approach. Exploratory sequential mixed method was conducted. The analysis shows that PT Alinda need to reconstruct the market boundaries, consider new potential market through product differentiation. PT Alinda need to rebuild the consumer value by eliminate the payment negotiation service factor, reduce the product quality assurance factor, increase the order ease factor, and create a new business line such as offering flower arrangements and dried flower handicrafts. The third step of the strategy formulation aims to maximize strategy formulation for non-consumer markets. Furthermore, the Blue Ocean Strategy testing should be focused on the underperforming factors.
Consumer Preference for Local Apples Malang and Imported Apples during the Pandemic
Authors: Isaskar Riyanti , Perwitasari Hani
Published: November 2021

Indonesian people tend to view imported fruit as a more prestigious value compared to local fruit. The case of pandemic covid19 has an impact on the imported fruit market in every country, especially apples that are famous in the Indonesian domestic market, among others, coming from China. People's fear of the transmission of covid19 brings its perception for consumers in consuming fruit originating from China. The purpose of this study is to know consumer preferences towards local Malang apples and imported apples, as well as identify the factors that make up those consumer preferences. The method used is a quantitative method of description using Principle Component Analysis (PCA). The result is that consumer preferences are influenced by the price, favorite, and place of purchase of apples. While the factors that shape consumer preferences in the consumption of local apples obtained formed three factors: performance, appearance and green product and imported apples obtained three factors are performance, packaging and green product that has similarity to the description are only slightly different from the attributes formed in it.
Supply chain management of red chili based on the food supply chain network in Yogyakarta Indonesia
Authors: Susanawati  , Tri Novita Sari Yuli , Fauzan Muhammad , Sharifuddin Juwaidah
Published: November 2021

This study aims to describe the relationship structure of the red chili supply chain from Kulonprogo to Jakarta and analyze the supply chain management of red chili based on the Food Supply Chain Network (FSCN). A sampling of red chili farmers was carried out in stages, obtaining 80 people. Meanwhile, the sampling of chain actors after farmers used the snowball sampling technique, resulting in 68 people. The supply chain relationship structure of red chili was analyzed descriptively, whereas supply chain management of red chili was analyzed using an FSCN approach. The results revealed that the red chili supply chain structure was formed by three chains consisting of eight actors. All chain actors entered into an unwritten agreement, except for actors in the auction markets. The transaction system employed the scale and payment methods with a delay system. In addition, government support was only provided in the upstream sub-system. Supply chain collaboration that occurred was the mutual openness and reciprocal relationship. The majority of chain actors had utilized communication media of mobile phones, although few of them made transactions by coming directly to the purchase location. The material communicated was related to price, quality, quantity, and time of payment.
Student’s Food Buying Interest Using an Online Delivery Order Application
Authors: Widodo  , Anissa Amalia Shifa
Published: November 2021

Food online delivery service had been present in various cities in Indonesia such as Yogyakarta. Delivery service provides a new experience for consumers in buying food. This research aimed to describe student’s food buying interest using online delivery order application. The research applied the Theory of Planned Behaviour by Ajzen and Fishbein. This research was conducted at the Universitas Muhammadiyah Yogyakarta. The sampling technique in this study used accidental sampling collected 200 students. The average score of the data was taken to describe the category of the student's level of interest. The results showed that the students favorable to order food using the online delivery order application, the environment around the students did not support on using of the online delivery order application, and the transaction facilities supported the use of the online delivery order application. Overall, the results showed that students did not show a strong interest in buying food through online delivery order application.
How Does Green Marketing Claim Affect Brand Image, Perceived Value, and Purchase Decision?
Authors: Fatmawati Indah , Alikhwan Muhammad Athar
Published: November 2021

The rise of pro-environmental awareness has promoted a new innovative local brand that considers sustainable society life. This study analyses how the green marketing claim of new local cleaner products influences the brand image, perceived value, and consumer purchase decisions. The respondents of this study are consumers of local shoe cleaner products claimed as green ones. The setting is a new brand of shoe cleaner introduced in Yogyakarta, Indonesia. This brand is a green product developed with a green marketing program. Using the purposive sampling method, we chose one hundred fifty respondents. The data analysis is using Structural Equation Modelling (SEM) of AMOS 21. Our result shows that green marketing significantly impacts brand image, perceived value, and purchase decisions. Brand image and perceived value affect purchase decisions substantially.
Comparison of the development of cluster and non-cluster models of corn farming
Authors: Buddhi Satyarini Triwara , Pangarso Dindha Timor
Published: November 2021

Corn is the potential commodity in Grobogan Regency. Considering that potential, Bank Indonesia, in cooperation with the Government of Grobogan, creates the development program of corn cluster. The selected area was Gapoktan Sido Murni in Tambakselo Village. However, there was an area with the same potential that doesn’t have a cluster development program, which is Gapoktan Sido Manunggal in Dokoro Village. Therefore this research aims compare the income, profit, and feasibility of corn farming. The number of respondents was 20 farmers in each village and was determined by a non-random sampling. The data obtained were analyzed descriptively. The results showed that farmers of Gapoktan Sido Murni earned an average income of IDR 11,724,722 and a profit of IDR 7,917,851. Meanwhile, farmers in Gapoktan Sido Manunggal earned an average income of IDR 9,740,915 and a profit of IDR 5,991,161. The R/C in Gapoktan Sido Murni was 1.9 while Gapoktan Sido Manunggal had 1.6, land productivity in Gapoktan Sido Murni was IDR 9,928,684/Ha/season and Gapoktan Sido Manunggal was IDR 7,991,161/Ha/season, and capital productivity in Gapoktan Sido Murni 148% and Dokoro 104%. Based on the feasibility analyses, Gapoktan Sido Murni had a higher feasibility value than Gapoktan Sido Manunggal; thus, the corn cluster program is worth developing.
Key Role of Millennial Generation in Rural Agricultural Development In Indonesia: Cohort Generation Theory Approach
Authors: Citoro Kifli Gontom , Slameto Slameto , Carolina Kilmanun Juliana , Permana Dadan , Puspitasari Melia , Justina Simanjuntak Ester , Meitrianty Chetty
Published: November 2021

Agricultural development actors in Indonesia are currently dominated by elderly farmers and a small proportion of young farmers. Another condition is that the farming system in Indonesia is generally subsistence. Several good potentials in the context of agricultural development in Indonesia today, firstly, the productive working age group is dominated by youth, especially the millennial generation, and secondly, the growing rapidly used internet networks. The condition of subsistence farming and the lack of young actors in agriculture, but on the other hand there is the potential of the millennial generation and availability of internet networks access. This study employed a quantitative research method. The purpose of this research is to see the current condition of agricultural development in Indonesia concerning its current potential. Another objective is to design the appropriate strategy for exploiting this potential to accelerate agricultural development in Indonesia. The results obtained from this research are the high level of accessibility of rural communities as initial capital for agricultural development in Indonesia for now. The millennial generation who dominates the working age in Indonesia can maximize their role in the agricultural sector in rural areas through developing entrepreneurship based on the use of internet networks.
Assessing economic value of community forestry for sustainable rural development
Authors: Saptutyningsih Endah , Waisy Alqharni Taufiq
Published: November 2021

Community forestry contributes to the rural economy in a variety of ways: directly as a consumer of land and services to convert biological and other inputs into a variety of outputs; indirectly through its linkages with upstream producers and downstream processing sectors; and indirectly through the re-spending in rural areas of portions of income generated from forestry and related industries. through the provision of non-market benefits; and a pleasant living atmosphere for many people. This study aims to estimate the economic value of community forests in Pajangan, Bantul district. The benefits of community forests can be direct use values and indirect use values. The benefits of Pajangan community forests are estimated using the Total Economic Value (TEV) method. The result shows that TEV of IDR 70,298,307,526 per year, consisting of direct use value of IDR 9,344,000,000 per year, the indirect use value of IDR 35,274,178,836 per year. It is critical to provide economic incentives for communities to participate in sustainable rural development such as ensuring that the full economic value of forests is recognized and reflected in both economic and forestry decision-making, with a focus on economic costs and benefits that accrue at the community level.
Small-Scale Farmers' Preference in Adopting Geographical Indications’ Code of Practice to Produce Coffee in Indonesia: A Choice Experiment Study
Authors: Laksono Pandu , Irham  , Handoyo Mulyo Jangkung , Suryantini Any , Budi Permadi Dwiko
Published: November 2021

Geographical Indication is a type of collective intellectual property that producers may use to capture the place-related value expressed in their product which involve the physical and anthropic characteristics of the production area. There is GI’s Code of Practice (CoP) that should be adopted by farmers as reference standard to maintain GIs product consistency and definition requirements. Understanding farmer preferences and incorporating them into the development of improvement of GIs’ certification schemes is thought to result in more internalized, and thus more efficient standards. This study aims to 1) investigate the small-scale farmers’ preferences and the influence of socio-economics characteristics rejecting GIs’ scheme; and 2) develop strategies to increase farmers participation on GIs’ scheme. Choice Experiment method and Conditional Logit Model (CLM) were used to estimate preferences of 157 small-scale coffee farmers for accepting GIs’ scheme. The findings suggest that premium price, coffee processing, technical assistance, and selling agreement are all GIs’ attributes that could increase small-scale farmers’ utility. More incentives are required to compensate farmers due to the loss of utility caused by pesticide bans and farm inspection. Based on CLM, the study found that farmers have clear preferences for and against certain aspects of GIs’ CoP scheme.
Effectiveness of Digital-Based Agricultural Extension Implementation in Central Bangka Regency
Authors: Ahmadi  , Ansyor Akhmad , Suharyanto  , Hidayat Zikril
Published: November 2021

This study aims to determine the effectiveness of the implementation of digital-based counseling in Central Bangka Regency. Respondents in this study were 335 people consisting of farmers and agricultural extension officers in 6 (six) districts in Central Bangka Regency. Data were collected through survey activities using a questionnaire. The data obtained were analyzed based on quantitative analysis using the Logit test. Based on the research results, it was found that all the variables studied were significantly related to the effectiveness of digital-based extension implementation in the Central Bangka Regency.
Shallot Development Strategy In Minahasa Regency, North Sulawesi
Authors: Manoppo Conny N. , Sudarti  , Polakitan August L.
Published: November 2021

North Sulawesi has the potential for developing shallots, but the development has not been maximized. The study aims to analyze the internal and external factors in shallot farming and formulate the strategies that can be implemented in the development. The research was conducted in Tonsewer Village, West Tompaso, Minahasa, North Sulawesi, involving 35 farmers and analyzed using SWOT. The results showed that the internal strengths were good physical condition and quality of shallots, land area, use and availability of seeds, availability of organic fertilizers, farmer’s mastery of cultivation techniques and experience. Weaknesses were shallot production still low, lack of farmer capital, availability of inorganic fertilizers, lack of labor, and not appropriate input usage. Opportunities were shallot production, shallot demands, average input prices and availability of inputs, support from Farmers' Group Association and government, selling prices and market access. Threats were the inadequate infrastructure and supporting facilities, the big traders' bargaining position, and the lack of agricultural extension ability. The strategy used was SO strategy (strengths and opportunities), which is to take advantage of Farmers' Group Association support so that farmers get quality seed assistance, take advantage of government support in channeling capital, take advantage of average input prices and availability of inputs, take advantage of market access.
Assessing Households’ Food Waste in Rural Yogyakarta
Authors: Sugiyarto
Published: November 2021

As consumers have been widely recognized as one of the largest driving forces in food waste, then knowledge about households’ food consumption related to food waste behaviour is essential to understand. This study aims to identify the level of food waste based on the food categories and quantify the amount of food waste generated by rural households, particularly rice. Data were collected using a questionnaire conducted on a sample of 122 households which were selected randomly from 3 rural areas in Sleman and Bantul regencies. The first finding indicates rice and vegetables as the predominant types of food being wasted by households. The second finding (133 gr per household per day) provides a measure of the average amount of waste associated with the consumption of rice as households’ staple food. This study gives further insights linked with the households’ food consumption and the amount of food waste generated, which have previously been rarely studied, especially in rural areas.
Soybean Farming Income between Cooperators and Non-Cooperators during Farmer Field School Program in Central Lombok - Indonesia
Authors: Kusumaputri Utami Sylvia , Mardiana Mardiana , Herawati Nani , Nurul Hidayah Baiq
Published: November 2021

Soybean is one of the strategic commodities in Indonesia. Demand of soybean continues to increase every year but not followed by adequate supply. In order to increase soybean production, apart from being driven from technical aspects, it is also necessary to pay attention to farmer participation. The aimed of this study were to examine differences in income of the cooperator and non-cooperator farmers during farmer field school (FFS) program and to measure level of technology applied by co-operator farmers in Central Lombok Regency, Indonesia. Numbers of respondents in this study were 26 farmers who were taken by purposive sampling. The research used quantitative method using Benefit Cost (B/C) ratio analysis to calculate the feasibility of farming and scoring analysis to measure the level of technology applied. The results showed that there was a difference in income between co-operator and non-co-operator farmers. The B/C ratios of the two farmer groups indicated that feasibility value were 1.22 and 0.87 for cooperators and non-cooperators, respectively. Those values mean that farming in the FFS program was profitable to implement, while non FFS farming was still feasible but have not provided benefits. The level of technology applied by co-operators was still in the medium category.
Identification of Superior Fruits Commodities in North Sumatra Province
Authors: Novita Desi , Rinanda Teja , Riyadh Mhd. Ilham
Published: November 2021

Agricultural is a sector that provides the largest contribution to the economy in North Sumatra Province. The development of fruit production has decreased since 2015. This study aims to identify superior fruits commodities, analyze the development of production for superior fruits commodities, and identify production centers of superior fruits commodities in North Sumatra Province. This study uses secondary data, Namely the time series 2015-2019 period. Data were obtained from the Food Crops and Horticulture Service and the Central Statistics Bureau of North Sumatra Province. The data analysis used is the Location Quotient (LQ) method. The results showed that seven superior fruits commodities were Water Apple (LQ 3.75), Salak (LQ 3.45), Siam Orange (LQ 3.28), Pineapple (LQ 1.58), Durian (LQ 1.35), Sawo (LQ 1.29), and Duku (LQ 1.13). The development of durian, Salak, Duku, and Sawo production shows an increase in the 2015-2019 period. Meanwhile, the development of water apple, Siam Orange, and Pineapple production has shown a decline in production in the 2015-2019 period. The main production centers for each of these superior fruits commodities include Binjai (Water Apple), South Tapanuli (Salak), Karo (Siam Orange). North Tapanuli (Pineapple), Dairi (Durian), South Nias (Duku), and Batubara (Sawo).
The impact analysis of rice field conversion on food security in Sragen Regency
Authors: Prasanthi Anggraini Desta , Sutrisno Joko , Barokah Umi
Published: November 2021

Sragen Regency is one of the food barn areas in Central Java Province. Along with the population growth and development activities, the need for land is increased. Meanwhile, the availability of land remains still. This gap can lead to rice field conversion. In the long term, rice field conversion can affect food security. Therefore, the research was conducted to (1) determine rice field conversion’s rate, (2) affecting factors, (3) its impact on food security in Sragen Regency. The results showed that the rice field conversion’s rate in Sragen Regency fluctuated by an average of 0.13% per year. The results of multiple linear regression showed that the amount of Gross Regional Domestic Product, total population, the number of industries, building and yard area, and the number of schools simultaneously affect the rice field conversion. Furthermore, the amount of Gross Regional Domestic Product, total population, and number of schools also affect partially. The impact of the rice field conversion was the loss of rice production by 6,147.40 tons. However, according to surplus-deficit analysis, food security in Sragen Regency is a surplus, which means that it is resistant even though there is rice field conversion.
Production and marketing of semi organic rice in Bantul Regency Special Region of Yogyakarta
Authors: Istiyanti Eni , Badriyah Salmah Umi , Rachman Reza Raditya
Published: November 2021

Semi-organic rice farming utilizes natural ingredients and considers ecological and health factors but still uses chemicals in a small proportion. It has become a transition to organic rice farming. This research aims to analyze the production costs, income, profit, and feasibility of farming, identify marketing channels, and analyze the marketing efficiency of semi-organic rice in Bantul Regency. A total of 60 semi-organic rice farmers were selected using the Multistage Random Sampling method, while 11 traders were obtained based on the Snowball method. The farming feasibility analysis was based on Revenue Cost Ratio (R/C) and Break Even Point (BEP) criteria, while the marketing efficiency analysis was based on Technical Efficiency Index (TEI) and Economic Efficiency Index (EEI). The results uncovered that with a land area of 2,000 m2, semi-organic rice farming incurred production costs of IDR 4,319,801, generating an income of IDR 4,590,438 and profit of IDR 2,245,817. Semi-organic rice farming in Bantul Regency was feasible based on the R/C and BEP criteria. There were seven marketing channels for semi-organic rice in Bantul Regency, and on all channels, the farmer’s share was > 50%. Marketing channel IV was the most efficient channel, both technically and economically.
Rice Production Analysis in Reflecting Rice Self-sufficiency in Indonesia
Authors: Isnaeni Fathonah Fadillah , Mashilal
Published: November 2021

Indonesia was the third rank after China and India as the largest rice-producing country in the world in 2020. However, data on the Indonesian import of rice shows fluctuation in recent years. Food security and self-sufficiency have been a problem faced by many countries before COVID-19 came in. Hence, this observation aims to analyze the influence of land area, labor, and farmers’ capitals on rice production in reflecting rice self-sufficiency in Indonesia. This research applied panel data methodology with land area, farm laborers, and farmers' capitals as the independent variables while rice production as the dependent variable, recorded in 2018 to 2020 in 34 provinces in Indonesia. The most appropriate model for this research was the random effect model. The results confirmed that land area had a positive and significant impact while the other two variables showed no significant effects on rice production in Indonesia.
Decomposition of the Theil Index in Inequality Analyses in Yogyakarta Indonesia
Authors: Wijaya Oki , Susanto Deni Aditya , Heruwarsi Triatmi , Giyanti Sri , Ibrahim Nik Rahlia Nik
Published: November 2021

Yogyakarta is Indonesia’s province with the highest inequality at the Gini ratio of 0.417. This research brings into focus inequality in Yogyakarta and inequality distribution by regions and the economic sectors. Methodologically, this research uses the descriptive quantitative analysis model to spell out inequality distribution. The analysis units are regions and the economic sectors at provincial and district/city levels. The parameter used is the Theil index with the approach of inequality of between-region, between-sector, within-region, and within-sector. The results exhibit that at the provincial level, Yogyakarta has a Theil index of 0.686. The region with the highest inequality is Bantul (0.737), whereas other areas come with severe inequality (> 0.5). In regard to between-region inequality, the highest inequality distribution is between Sleman and Kulon Progo and Gunungkidul. At district/city levels, the highest inequality is identified in the agricultural, trade, and industrial sectors. Finally, the highest inequality distribution is between the construction sector and the agricultural, trade, and industrial sectors.
Non-Cash transaction behavior of people Yogyakarta City: a case from Indonesia
Authors: Yuliadi Imamudin , Ariyani Yusi
Published: November 2021

The changes in information technology have also changed community behavior in doing transaction payments from cash to non-cash. This study aims to discover the effect of easiness, trust, life-style, and risk factors on people of Yogyakarta city interest to do a non-cash transaction. The research data were primary data obtained through interviews and questionnaires to 100 respondents in Malioboro shopping center which is the icon of Yogyakarta city, Indonesia. The data then estimated through multiple linear regression models using SPSS 16 statistical program. The result of the study empirically showed that easiness, trust, and life-style had positive and significant effects on the community’s choice to have non-cash transactions. Meanwhile, risk had a negative and significant effect on the interest of people in doing non-cash transactions. In general, non-cash payment promoted the intensity and capacity of a payment transaction because the payment is easier and cheaper. This study recommends increasing community awareness about the benefits and risks of a non-cash payment transaction. Moreover, law enforcement of customer protection from the misuse of non-cash payment facilities should be enhanced.
Alternative Potential of Various Processed Potato Varieties in the Highland
Authors: Dianawati Meksy , Yulyatin Atin
Published: November 2021

The low production of Atlantic as processed variety has prompted efforts to introduce varieties as well as the creation of new varieties. The purpose of this study was to examine various alternatives of processed potato varieties that have the potential in the highlands of Garut, West Java. The research was conducted in Cikajang, Garut, West Java, from December 2017 to March 2018. The research used a randomized block design with eight varieties and four replications. The varieties tested were Blis, Atlantic M., Medians, Granola L, AR8, AR7, Amabile, and Atlantic. The observed variables were height plant at 2, 4, 6, and 8 WAP, number of tuber by size, and tuber weight. The data was tested with the F test and if it was significantly different, it was continued with the orthogonal contrast test at the 5% level. Heatmap analysis was performed using the R Studio program The result showed that Granola was not significantly different from all processed varieties. There were three groups of processed varieties, namely the first group, Amabile. The second was AR 7, Medians, and Blis. The third was Atlantic M, Atlantic, and AR 8. Amabile variety had the highest production and number of large tubers.
Effect of Manure Fertilizer Dosage and Mulch Types to The Vegetative and Generative Growth Performance of Cayenne Pepper Crops in Klungkung Regency, Bali
Authors: Retna Kumala Sari Anella , Nugroho Jati Eko , Pujiawati Yusti , Rinaldi Jemmy , Mahaputra I Ketut , Ngurah Arya Nyoman , Trisnawati Ni Wayan
Published: November 2021

Klungkung Regency is one of cayenne pepper centre producers in Bali. Mostly, cayenne pepper farming system in Klungkung Regency is done by applying traditional cultivation therefore cayenne pepper productivity in this regency still low. Agriculture technology dissemination such as the utilization of manure fertilizer is required to introduce to the farmers. The goal of this study was to understand the growth responses of cayenne pepper crop to the dosage of manure fertilizer application and mulch types. The research was conducted in July to December 2020 using Factorial Block Randomized Design with treatments were dosage of fertilizer manure namely 10ton/ha; 20 ton/ha; 30 ton/ha and mulch types namely straw and silver-on-black plastic mulch, replicated for 4 times. Parameters observed were plant height, stem diameter and branches amount during vegetative period and fruit weight, fruit length and fruit diameter during generative period. The results showed that interaction between dosage of manure fertilizer and mulch types significantly affected to overall parameters during vegetative and generative period except fruit diameter. Cayenne pepper growth was lower by application of 30 ton/ha of manure fertilizer compared to 10 ton/ha and 20 ton/ha. The utilization of silver black plastic mulch gives the better growth response than straw mulch.