bluuebunny/crossref_metadata_2025 huggingface dataset:
Prioritizing Fetal Structural Abnormalities Over Risk for Pre-Eclampsia and Fetal Growth Restriction in the 20-24 Gestation Week Assessment in India: Missing the Woods for the Trees?
Authors: Choorakuttil Rijo Mathew , Satarkar Shilpa R , Sharma Lalit K. , Gupta Anjali , Baghel Akanksha , Nirmalan Praveen K.
Published: December 2022

Aim To compare the magnitude of fetuses with congenital anomalies, pregnant women identified at high risk for preterm pre-eclampsia (PE) or with preterm PE, and with early fetal growth restriction (FGR) or high risk for FGR at the second trimester assessment at 20 to 24 weeks of gestation.

Methods A standardized trimester-specific protocol that included clinical and demographic details, fetal biometry, estimated fetal weight (EFW), fetal abdominal circumference (FAC), mean arterial blood pressure and fetal Doppler studies was used to identify high risk for preterm PE and FGR. The Targeted Imaging for Fetal Anomalies (TIFFA) scan was used to identify congenital anomalies. In addition, 95% confidence intervals of the point estimates were derived, and the p-value was estimated to assess the statistical significance of the difference in proportions.

Results Analysis of the data of 4,572 pregnant women screened between 20 and 24 gestation weeks showed a significantly lower prevalence (p < 0.001) of congenital abnormalities (3.81%) compared to women diagnosed with early PE (2.71%) or with a high risk for PE (4.00%) and women (6.80%) with early FGR or at higher risk for fetal growth restriction with both EFW and FAC < 10th percentile.

Conclusion The data on prevalence from Samrakshan show that the second-trimester assessment of pregnant women in India must expand its scope from the TIFFA scan to also focus on screening to identify women at high risk for preterm PE and FGR.
Symmetric ordering and Weyl realizations for quantum Minkowski spaces
Authors: Meljanac Stjepan , Škoda Zoran , Krešić–Jurić Saša
Published: December 2022

Symmetric ordering and Weyl realizations for non-commutative quantum Minkowski spaces are reviewed. Weyl realizations of Lie deformed spaces and corresponding star products, as well as twist corresponding to Weyl realization and coproduct of momenta, are presented. Drinfeld twists understood in Hopf algebroid sense are also discussed. A few examples of corresponding Weyl realizations are given. We show that for the original Snyder space, there exists symmetric ordering but no Weyl realization. Quadratic deformations of Minkowski space are considered, and it is demonstrated that symmetric ordering is deformed and a generalized Weyl realization can be defined.
Effective self-healing behavior of nanocrystalline-amorphous laminated alloy under irradiation
Authors: Wang Peng-wei , Jing Hai-yan , Li Ming-fei , Malomo Babafemi , Yang Liang
Published: December 2022

An extensive investigation on the microstructural evolution of nanocrystalline–amorphous laminated alloys (NALAs) by molecular dynamics simulations and mechanistic analysis have been conducted to apprehend the interplay of complex phenomena governing structural changes in this alloy under neutron irradiation. It was discovered from the evolution profiles of free volumes, atomic unfilled spaces, and irradiation-induced vacancies that the profound structural response of the NALA was orchestrated by the rapid and spontaneous recovery of free volumes that indicate a self-healing ability in the amorphous zone, while the phenomenon of geometric atomic reconstitution in local structures governs the effective self-healing capacity for annihilated nanocrystal regions. Furthermore, a distinctive, self-migration/diffusion capture dynamics for the annihilation of defects by phase boundaries was discovered as an effective self-healing mechanism in NALAs. These findings will potentially facilitate the development of advanced nuclear materials with high irradiation resistance.
On the role of geometry in statistical mechanics and thermodynamics. I. Geometric perspective
Authors: Esen Oğul , Grmela Miroslav , Pavelka Michal
Published: December 2022

This paper contains a fully geometric formulation of the General Equation for Non-Equilibrium Reversible-Irreversible Coupling (GENERIC). Although GENERIC, which is the sum of Hamiltonian mechanics and gradient dynamics, is a framework unifying a vast range of models in non-equilibrium thermodynamics, it has unclear geometric structure due to the diverse geometric origins of Hamiltonian mechanics and gradient dynamics. The difference can be overcome by cotangent lifts of the dynamics, which leads, for instance, to a Hamiltonian form of gradient dynamics. Moreover, the lifted vector fields can be split into their holonomic and vertical representatives, which provides a geometric method of dynamic reduction. The lifted dynamics can be also given physical meaning, here called the rate-GENERIC. Finally, the lifts can be formulated within contact geometry, where the second law of thermodynamics is explicitly contained within the evolution equations.
Mode conversion of Lamb waves in a composite phononic crystal plate: Numerical analysis and experimental validation
Authors: Ding Taotao , Song Ailing , Sun Chaoyu , Xiang Yanxun , Xuan Fu-Zhen
Published: December 2022

The mode manipulation of Lamb waves plays an important role in damage detection and identification of damage types, location, and size. In this paper, we propose a composite phononic crystal (PC) plate with antisymmetric and symmetric PCs for realizing mode conversion from A0 to S0 mode of Lamb waves. The theoretical analysis, numerical simulations, and experimental validation are introduced and the mode conversion mechanism of the composite PC plate is systematically investigated. The effect of geometrical parameters on band structures of antisymmetric and symmetric PCs is first discussed. Then multi-physics field simulation models are developed and in-plane displacement fields are obtained in numerical simulations, which shows that the mode conversion is enhanced when the period number of the antisymmetric PC decreases and that of symmetric the PC increases. The composite PC plate specimens are fabricated with precision wire cutting technology for experimental measurements and the self-designed polyvinylidene fluoride (PVDF) comb transducer is used to stimulate the Lamb waves. The experimental results are consistent with the numerical simulations, which demonstrate that the proposed composite PC plate can achieve the mode conversion from A0 to S0 mode of Lamb waves. Our proposed structures have applicable values for the mode manipulation of Lamb waves in damage detection.
Influence of wetting behavior on the morphology of droplet impacts onto dry-patterned micro-structured surfaces
Authors: Foltyn P. , Ribeiro D. , Silva A. , Lamanna G. , Weigand B.
Published: December 2022

The influence of surface roughness, especially regularly patterned micro-structures on the physical outcomes of droplet impacts, is far from fully understood. In order to get a deeper insight into the physics of the impact phenomena, a systematic experimental study of the morphology on regularly patterned micro-structured surfaces has been carried out. The used structures with different dimensions were grooves and pillars with a square cross section. With the help of plasma activation and plasma polymerization processes, the surface wettability was modified independently from the surface structure and material. Two different test fluids were used, namely, distilled water and isopropanol, impacting with various impact energies onto the patterned surface samples. For a better characterization of the impact process, high-speed images from three different perspectives have been acquired synchronously. Due to the transparent surface material, the bottom perspective using a total internal reflection configuration was able to visualize air entrapment inside the surface structure. To the authors' knowledge, such images are not available in the literature, yet. The outcomes have been qualitatively investigated, summarized, and compared. A dependency of the outcomes on the impact energy, the surface wettability, and the structure dimensions could be clearly shown. In general, increasing impact energy will promote the tendency of splashing. However, roughness features cannot only trigger splashing, but can also inhibit it, for example, crown splashing. Moreover, reproducible arrangements of air entrapment inside the structure could be found, which was addressed by the authors as “cookie” and “button” due to their appearance.
Instability mechanisms of repelling peak solutions in a multi-variable activator–inhibitor system
Authors: Knobloch Edgar , Yochelis Arik
Published: December 2022

We study the linear stability properties of spatially localized single- and multi-peak states generated in a subcritical Turing bifurcation in the Meinhardt model of branching. In one spatial dimension, these states are organized in a foliated snaking structure owing to peak–peak repulsion but are shown to be all linearly unstable, with the number of unstable modes increasing with the number of peaks present. Despite this, in two spatial dimensions, direct numerical simulations reveal the presence of stable single- and multi-spot states whose properties depend on the repulsion from nearby spots as well as the shape of the domain and the boundary conditions imposed thereon. Front propagation is shown to trigger the growth of new spots while destabilizing others. The results indicate that multi-variable models may support new types of behavior that are absent from typical two-variable models.
Low-temperature crystallization of indium oxide thin films with a photoactivable additive
Authors: Choi Jun-Gyu , Lee Won-June , Jo Yong-Ryun , Na Hyeonjun , Lee Sangwoo , Kim Bong-Joong , Yoon Myung-Han
Published: December 2022

In this study, we report a simple route to the low-temperature crystallization of solution-processed indium oxide thin films by introducing ammonium nitrate in the sol–gel metal oxide precursor solution as photoactivable additive and applying deep ultraviolet (DUV) irradiation onto the as-spun oxide films in an inert atmosphere. Thermal and structural analyses revealed that the initial temperatures for condensation and crystallization were reduced down to 130 and 200 °C, respectively, by the in situ generation of reactive chemical species enabled by DUV-assisted nitrate photolysis. Furthermore, transmission electron microscopy confirmed that the degree of indium oxide film crystallinity was gradually enhanced as the amount of nitrate in the precursor solution was increased. Finally, electrical characterizations showed that carrier mobility, threshold voltage, subthreshold swing, and threshold voltage shift under the positive bias stress of sol–gel indium oxide thin-film transistors were improved from 0.21 to 5.03 cm2/V s, from 4.18 to 1.64 V, from 1.33 to 0.72 V/dec, and from 6.44 to 4.04 V, respectively, by combining ammonium nitrate and DUV photoactivation.
A three-dimensional magnetoelastic valley Hall insulator with tunable elastic wave route and frequency
Authors: Zhang Gang , Gao Yuanwen
Published: December 2022

Topological insulators (TIs) are a new type of quantum state materials. Due to their novel physical properties, such as topological protection defect immunity to edge states, TIs have become the focus of attention in condensed matter and material physics. At present, the research on TIs has been gradually extended to classical wave fields such as electromagnetic waves, acoustic waves, and elastic waves, and has aroused extensive research interest. However, for elastic wave systems, most TIs cannot actively control topological interface states due to the limitation of fixed structure, which hinders their application in practical situations. Here, we propose a kind of tunable three-dimensional (3D) valley Hall insulator composed of magnetoelastic materials. First, the topological phase transition can be induced by the asymmetric geometry. Then, the working frequency of topological interface states can be changed by using static magnetic fields. Second, topological phase transformation can also be induced by independently tuning the distribution of static magnetic fields or pre-stress in each unit. Based on this, reconfigurable propagation routes of interface states with arbitrary shapes can be realized by tuning the distribution of static magnetic fields or pre-stress in each unit. Finally, considering the sandwich structure composed of different magnetic fields or pre-stress distribution modes, the waveguide with tunable width and route is designed by coupling edge and bulk states, which is convenient for application and better energy transfer. This study provides a reference for the design of a tunable intelligent elastic waveguide.
Quasi-isentropic compression of an additively manufactured aluminum alloy to 14.8 GPa
Authors: Brown Nathan P. , Specht Paul E. , Brown Justin L.
Published: December 2022

We uniaxially and shocklessly compressed an additively manufactured aluminum alloy, laser powder bed fusion (LPBF) AlSi10Mg, to peak stresses ranging from 4.4 to 14.8 GPa at peak strain rates on the order of 106s−1 via a series of magnetic loading experiments to measure the principal isentrope, yield strength, and shear modulus as a function of material orientation and applied stress. We did not observe significant anisotropy in any of the measured quantities. We found that the principal isentrope, within the uncertainty and up to our peak stress, overlaps the material’s Hugoniot. We measured yield strengths and shear moduli ranging from 0.28 to 0.81 GPa and 36 to 52 GPa, respectively. Our results indicate that LPBF AlSi10Mg behaves similarly to wrought Al alloys under quasi-isentropic compression.
Magnetoelastic modes in Néel domain walls
Authors: Froes D. , Arana M. , Sinnecker J. P. , Sampaio L. C.
Published: December 2022

Spin wave propagation over long distances in confined ferromagnetic strip lines exhibiting magnetoelasticity opens up promising perspectives for device applications. Domain walls as natural spin wave channels increase the spin wave propagation distance. We calculate the magnetic and elastic modes through micromagnetic simulations and the dispersion relation of strip lines containing a Néel wall. We show that at the crossing points in the dispersion relation, two behaviors are observed: an anticrossing gap when a strong coupling is present or a gapless point when the magnetoelastic feedback cycle is not fulfilled. For the Néel wall-confined magnetic mode, the magnetic and elastic waves oscillate independently forming a gapless crossing point. For the domain modes, both behaviors are found. We discuss the gap existence based on the symmetry of the eigenmodes.
High-stability flexible radio frequency transistor and mixer based on ultrathin indium tin oxide channel
Authors: Hu Qianlan , Zhu Shenwu , Gu Chengru , Wu Yanqing
Published: December 2022

In this work, a high-performance flexible radio frequency transistor using an ultrathin indium tin oxide film channel based on a solution-cast thin polyimide substrate has been demonstrated. The 60 nm short channel transistor shows a record high cut-off frequency of 5 GHz and a maximum oscillation frequency of 11 GHz with high uniformity among 40 devices. The radio frequency characteristics under various bending conditions have been systematically studied under a bending radius of 5 mm for 10 000 times and a bending radius of 1 mm for 1000 times, showing excellent stability with only 20% decrease in the cut-off frequency. Furthermore, a flexible frequency mixer has also been demonstrated at 2.4 GHz with decent conversion gains.
Self-standing quasi-random-dots fork gratings for single-order diffraction
Authors: Hu Huakui , Zhang Xiaomeng , Li Hailiang , Xie Changqing
Published: December 2022

Due to the orbital angular momentum it carries, the vortex beam generated by forked gratings is an important way to investigate physics and probe matter. However, unwanted high-order diffractions inherently introduced by traditional fork gratings may be overlaid on useful first-order diffraction, leading to errors in subsequent decomposition of the spectrum. Here, we present a single optical element with a sinusoidal transfer function, termed as quasi-random-dots fork gratings, which can effectively suppress high-order diffractions. The biggest advantage of quasi-random-dots fork gratings is that it can achieve single-order diffraction with a planar structure that can only be achieved by sinusoidal fork gratings with a three-dimensional structure. Therefore, it is a much simpler process to fabricate. Both simulation and experimental results confirm that quasi-random-dots fork gratings can effectively eliminate diffractions of second order and higher orders, and only 0th and ±1st orders are retained. In addition, the helical phase structure of vortex beams with multiple topological charges is also demonstrated. This optical element has potential applications in the field of particle manipulation and imaging.
Theoretical insight into lithium triborates as solid-state electrolytes
Authors: Du Xiaofan , Lu Guoli , Shao Zhipeng , Wang Chengdong , Ma Jun , Zhao Jingwen , Cui Guanglei
Published: December 2022

Owing to the inherent properties combining high ionic conductivity and electrochemical stability, the lithium triborates (LBOs) have emerged as a promising solid-state electrolyte for next-generation batteries. Specific fundamental details of the ionic conduction mechanism and related physicochemical properties remain to be understood. In this study, using the first-principles density functional theory calculations, we present a systematic computational investigation on LBOs in the respect of electronic structures, mechanical and thermodynamic properties, Li-ion transport, and interfacial (with Li metal) behaviors. Our results show that LBO is a thermodynamically and mechanically stable insulator with an indirect wide bandgap of 6.4 eV. Notably, LBOs could behave as a fast Li-ion conductor with a low migration energy barrier (15 meV) and are characterized by a zig–zag Li+-diffusion path along the c direction. We found that the interface between Li metal and LBO is both physically and chemically stable with no new phase formed while exhibiting a metallic character due to the charge transfer from a Li metal. Our study highlights the intriguing promise of LBOs as solid-state electrolytes for high-energy cells.
Full waveform autofocus inversion based microwave induced transcranial thermoacoustic tomography with a human skull validated
Authors: Liu Shuangli , Shang Xin , Lu Yanxi , Huang Lin
Published: December 2022

Stroke is the third leading cause of mortality in many countries. Thermoacoustic imaging has the potential for stroke detection. However, some parameters in thermoacoustic imaging, such as speed of sound, are difficult to be obtained in advance, and a constant velocity value is assumed in the reconstructed algorithm. Thermoacoustic signals propagate through the soft brain tissue and the skull in actual stroke detection. This mismatch between the assumed and actual sound velocity will degrade the imaging quality. In this Letter, we propose a full waveform autofocus inversion method to reconstruct thermoacoustic images for stroke noninvasive and non-ionizing detection. Employing the difference between the simulation forward sensor signals and the measured signals, the approximate speed of sound distribution is updated continuously. The numerical simulation of a real human brain model and the experiment of a real human skull help us to validate the performance of the proposed method in clinical transcranial thermoacoustic detection.
Enhancement of high temperature capacitive performance of sulfone-containing polyimide by suppressing carrier transport
Authors: Liu Xue-Jie , Zheng Ming-Sheng , Wang Qian , Chen George , Zha Jun-Wei
Published: December 2022

With the increasing demand for safe operation in harsh environments, polymer dielectric capacitors with high energy density (Ue) and charge-discharge efficiency (η) operating at high temperatures are urgently needed. In this work, the sulfone group-containing polyimide (SO2PI) film with optimal imidization degree is prepared by regulating the kinetics of imidization reaction. The functional groups obtained by partial imidization enable polyimide to achieve excellent energy storage performance, and it is found that the presence of sulfone groups is beneficial for the further improvement of η. The optimal SO2PI film achieves a Ue of 2.40 J cm−3 at 400 MV m−1 and 150 °C, while it maintains a high η of 92%. Moreover, its preparation process without any additional modification steps matches commercial production equipment, indicating a simple and effective strategy for fabrication of a high-performance dielectric film. Thus, this work exhibits great potential in the field of high temperature energy storage.
ωB97X-3c: A composite range-separated hybrid DFT method with a molecule-optimized polarized valence double-ζ basis set
Authors: Müller Marcel , Hansen Andreas , Grimme Stefan
Published: December 2022

A new composite density functional theory (DFT) method is presented. It is based on ωB97X-V as one of the best-performing density functionals for the GMTKN55 thermochemistry database and completes the family of “3c” methods toward range-separated hybrid DFT. This method is consistently available for all elements up to Rn (Z = 1–86). Its further key ingredients are a polarized valence double-ζ (vDZP) Gaussian basis set, which was fully optimized in molecular DFT calculations, in combination with large-core effective core potentials and a specially adapted D4 dispersion correction. Unlike most existing double-ζ atomic orbital sets, vDZP shows only small basis set superposition errors (BSSEs) and can compete with standard sets of triple-ζ quality. Small residual BSSE effects are efficiently absorbed by the D4 damping scheme, which overall eliminates the need for an explicit treatment or empirical corrections for BSSE. Thorough tests on a variety of thermochemistry benchmark sets show that the new composite method, dubbed ωB97X-3c, is on par with or even outperforms standard hybrid DFT methods in a quadruple-zeta basis set at a small fraction of the computational cost. Particular strengths of this method are the description of non-covalent interactions and barrier heights, for which it is among the best-performing density functionals overall.
The role of comparison in discourse
Authors: Sawada Osamu
Published: December 2022

This study investigates the meaning and use of the Japanese utterance comparative expressions sore-yori-(mo) ‘than that’ and nani-yori-(mo) ‘than anything’ and considers the role of comparison in discourse. I argue that sore-yori and nani-yori can compare individuals at the semantic (at-issue) level, but they can also compare utterances (speech acts) at the non-at-issue level (= conventional implicature (CI)) (e.g., Grice 1975; Potts 2005; McCready 2010; Sawada 2010; Gutzmann 2011). The utterance comparative sore-yori conventionally implicates that U in sore-yori(U) is more important than the previous utterance, and the utterance comparative nani-yori conventionally implicates that U in nani-yori(U) is more important than any alternative utterance.

An interesting feature of the utterance comparatives sore-yori-(mo) and nani-yori-(mo) is that their pragmatic functions are quite flexible. As for sore-yori, in some contexts, it can function as a topic-changing expression, but in other contexts it does not. As for nani-yori, when it occurs discourse-initially, it functions like the expression first of all, but when it occurs discourse-finally, it functions as an additive reinforcing expression. I argue that the pragmatic effects of utterance comparative expressions arise based on the interaction between their scalar meanings and the general pragmatic principles of relevance/Question Under Discussion and manner (e.g., Grice 1975; Roberts 1996).

This study demonstrates that in addition to regular comparison and metalinguistic comparison, there is a third type of comparison: utterance comparison, and that the notion of comparison plays an important role in advancing the conversation economically/effectively. Finally, cross-linguistic variations in utterance comparison will also be discussed using English and Korean data.
The semantics of scalar equatives in Mandarin Chinese
Authors: Cao Yuzhen , Luo Qiongpeng
Published: December 2022

The article presents a formal analysis of the xiang……yiyang scalar equative construction in Mandarin Chinese (MSEs). In the standard degree-based approach, scalar equatives are widely assumed to express an asymmetrical linear ordering between two degree-denoting descriptions such that the degree to which the comparee possesses is at least as great as the degree to which the standard possesses. However, this standard analysis would fall short of MSEs, which display a cluster of properties that are unexpected on the standard account: (i) MSEs disallow differentials; (ii) MSEs cannot take measure phrases as the standard; (iii) MSEs in general do not license NPIs in the standard phrases, and (iv) MSEs disallow factor phrases that express multiplication of numerical values. We propose that unlike scalar equatives in English (ESEs), where the comparison of equality is based on asymmetrical linear ordering of the degrees as points, MSEs recur to degrees as kinds, and consequently, the comparison of equality in the latter is based on instantiation of the degree-kinds, namely, equality of properties. The commonalities and differences between MSEs and ESEs suggest that, despite the fact that degrees and properties are semantic objects of distinct types, the underlying connection between them runs deep and fundamental.
The role of subordinate financialisation in Egypt’s employment crisis
Authors: Diab Osama
Published: December 2022

Studies of financialisation have largely ignored its impact in global south contexts. This briefing, therefore, adopts the ‘subordinate financialisation’ framework to study the impact of growing financialisation in Egypt, using primary data on the financial sector, employment and capital formation. To avoid the shortcomings of methodological nationalism, this briefing stresses the global south and historical dimensions of Egypt’s subordinate financialisation. The briefing concludes that traditional policy intervention, including progressive countercyclical measures, is unlikely to counterbalance the adverse effects of this extractive variety of financialisation due to its non-cyclical nature.
Understanding galaxy rotation curves with Verlinde’s emergent gravity
Authors: Yoon Youngsub , Park Jong-Chul , Hwang Ho Seong
Published: December 2022

We present the results from the analysis of galaxy rotation curves with Verlinde’s emergent gravity. We use the data in the Spitzer Photometry and Accurate Rotation Curves database, which contains a sample of 175 nearby disk galaxies with 3.6 µm surface photometry and rotation curves. We compute the gravitational acceleration at different galactocentric radii expected from the baryon distribution of the galaxies with the emergent gravity, and compare it with the observed gravitational acceleration derived from galactic rotation curves. The predicted and observed accelerations agree well with a mean offset

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. Our results suggest that Verlinde’s emergent gravity could be a good solution to the missing mass problem without introducing dark matter.
Mechanisms of metal–insulator transitions in ultrathin SrMoO3 films
Authors: Qi Weiheng , Liu Chen , Wang Zhen , Li Yan , Ibrahim Kurash , Wang Huan-hua
Published: December 2022

As the thickness of a transition metal oxide thin film is reduced to several unit cells, dimensional and interfacial effects modulate its structure and properties, and initiate low-dimension quantum phase transitions different from its bulk counterparts. To check if a metal–insulator transition (MIT) occurs to a low-dimensional 4

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electron systems, we investigated SrMoO3 thin films by characterizing and analyzing their lattice structures, electric transport properties and electronic states. Among various dimensional effects and interfacial effects, quantum confinement effect (QCE) was discerned as the dominating mechanism of the thickness-driven MIT. Surface/interface scattering contributes to the residual resistivity while the competition of several interactions modulated by QCE governs the temperature dependence of the resistivity of SrMoO3 ultrathin films.
Effects of formaldehyde treated-soybeal meal on sheep performance
Authors: Arifuddin M S , Yakupitiyage A , Tumwasorn S , Hansen G K , Parkpian P
Published: December 2022

The study aims at investigating the effects of protecting soybean meal proteinby using formaldehyde on live weight gain, dry matter consumption and feedefficiency of local rams. The research was conducted during 10 weeks period, using a completely randomized design (CRD) with 4 treatments within 4 replicates. Sixteen fat tail sheep, approximately 10 – 14 months of age with body weights ranging from 9 – 12 kg were used in this experiment. Soybean meal was treated with various concentration of formaldehyde, i.e 0 g, 5 g, 10 g and 15 g formaldehyde/ kg soybean meal. Untreated soybean meal was used as the treatment control. Maize forage (zea mays) was given ad-libitum as basal diet. Treatment with highest formaldehyde levels enhanced live weight gain (19.27 kg), dry matter consumption (412.80 g/d) and feed efficiency (35.52 %). The result indicated that, formaldehyde treatment of soybean meal protected dietary protein from rumen micro-organisms. Further investigation the optimum level of formaldehyde is warranted.
Multiple Biota Cultivation (Gracilaria sp and Chanos-chanos) Development Model as a Pillar of Milk Fish-Agar Agroindustry and its Applications
Authors: Ya’la Zakirah Raihani , Sulistiawati Dwi , Nasmia  , Tobigo DesianaTrisnawati
Published: December 2022

The general objective of the research is to formulate a development model for the cultivation of multiple biota (Gracilaria sp and Chanos chanos) as a pillar as the main support for the implementation of the development of the milkfish- agar agroindustry in the province of Central Sulawesi. The research was conducted in 3 districts producing seaweed and milkfish, namely, Morowali Regency, Parimo Regency and Donggala Regency. Each district is represented by 2 sub-districts which are the largest producers of seaweed so that there are 6 sub-districts. This research using a survey method by taking samples directly in the field by simple random sampling and purposive sampling, GIS methods for land suitability and SWOT analysis. Seaweed processing technology and marketing analysis supported SWOT analysis as requirements for development model of dual biota cultivation. The results showed that The suitability of the land is mostly suitable for the cultivation of milkfish and seaweed in Donggala Regency (716.09 Ha), Parimo Regency (674.91 Ha) and Morowali Regency (118.33ha). supported by water quality condition in 3 Regency which is quite optimal for the land suitability for cultivation of seaweed and milkfish, as well as factors that support the development model of milkfish-agar agroindustry.
Slope stability using Simplified Bishop method in Kebun Kopi area Donggala regency, central Sulawesi province
Authors: Ramadhani S , Martini  , Chauf K A , Dwijaka A , Bierhofa M Z , Gagaramusu Y
Published: December 2022

Kebun Kopi is prone to landslides, especially during the long rainy season. On September 16, 2020, there was a landslide at KM 42, which caused the closure of the road. Slope handling in the that area has been carried out by providing reinforcement and erosion control, however, it was not sufficient for handling landslide cases. This study aimed to determine the slope stability at KM 42 based on simplified Bishop. The research was conducted in Nupa Bomba Village, Central Sulawesi Province. The data used in this research are secondary data which is the result of previous research. Secondary data were used in the form of slope geometry and laboratory test data. The collected data were analyzed using calculations according to the standards. Slope stability analysis was carried out by manual calculations using the simplified Bishop method and compared with numerical calculations using the Slide program. The results indicate that the value of the minimum safety factor has an average difference 0.22% when compared to the numerical analysis. The disadvantage of manual calculations is that the analysis process is quite long and less accurate, this can be minimized by using software analyzing slope stability problems, especially in the Kebun Kopi area.
Architectural adaptation of vernacular stilt houses in Palu city
Authors: Burhany NR , Jiba RB A , Puteri F , Marwah A
Published: December 2022

This study intends to identify architectural adaptations that occur in vernacular stilt houses in Palu City. The research method used is a qualitative approach and field research methods. Typology is used as an analytical tool and will analyze the basic structures, functions, and the process of development of these basic structures to their current form. Then examine the possible influence of local conditions on architectural adaptations that occur. The results of this study will enrich the repertoire of knowledge of Archipelago Architecture about the development of vernacular stilt house architecture. In addition, the results of this research will later be used as reference material in conserving Kaili tribal architecture and developing stilt house architecture in urban community life.
Effect climate change on the potential erosion of the Singkoyo watershed
Authors: Sutapa I W , Yassir  , Nina B R , Sance L , Frederichsen F P
Published: December 2022

Global climate change results in an increase/decrease in rainfall, resulting in frequent occurrence of extreme rains that cause floods and landslides as well as prolonged droughts.. This study aims to determine the effect of climate change on the erosion potential of the Singkoyo watershed. The data used in the form of rain data obtained from Singkoyo Station (2008-2020), geological maps, maps of the earth’s appearance and land use maps. The method used in analyzing the erosion potential is USLE. The climate change scenario is carried out by multiplying the average monthly rainfall by -20%, -10%, 10% and 20%. The result of this research is the reduction of rain by 10% and 20% resulted in decreased erosion potential by 3.7 tons/ha/year (13.3%) and 7.3 tons/ha/year (26.2%). An increase in rainfall of 10% and 20% resulted in the potential for erosion to increase by 3.9 tons/ha/year (13.9%) and 7.9 tons/ha/year (28.1%). The conclusion of this study is that the relationship between rainfall and erosion potential is linear, meaning that an increase in rainfall causes an increase in erosion potential and vice versa.
Assessment of Occupational Health and Safety Risk in the Road Construction Project in the Sigi Regency
Authors: Fahirah F , Fadjar Adnan , Madina Rika
Published: December 2022

The possibility occurrence of occupational health and safety risk in construction work is large because each work environment has many sources of danger but can be done prevention and handling to reduce the risk of occurrence of a work accident that’s why we need the process of identification and assessment of occupational health and safety risks. This type of research is descriptive analysis, the research approach is observational to use a sheet of JHA (Job Hazard Analysis) for hazard identification and risk assessment with a semi-quantitative analysis using the standard risk assessment AS/NZS 4360:2004. The results of the hazard identification beyond the occupational health and safety are carried out in the road construction in the Sigi Regency produce 147 of the danger that comes from the unsafe action and unsafe conditions and the results of assessing the risks over 147 hazards identified there are 5 different levels of risk ranging from the risk level the most, namely level priority 3 as much as 46%, very high as much as 22%, for priority 1 as much as 14%, substantial as much as 11%, and acceptable as much as 7%.
Baseflow index on Miu watershed based on a digital graphical method
Authors: Oktavia S R , Rustiati N B , Andiese V W , Amaliah T , Labombang M , Mantika O A
Published: December 2022

Baseflow is essential for water resource management in the dry season at the watershed scale. Management strategy water resources play a crucial role, especially those related to estimation efforts water supply, water quality management, water balance calculation, and strategy development of other water resources. This study aims to determine the value of baseflow using the Fixed Interval Method. This study used Hydro Office software with input daily discharge data from 2004 to 2013. The average baseflow value obtained was 5.53 m3/s, the process of calibrating by taking discharge data in the dry season, with no rainfall input. The BFI value obtained an average of 0. 9. This value indicates that the Miu watershed has high storage permeability characteristics. It indicates that the Miu watershed has a relatively stable flow during dry periods. The greater the BFI value, the better the water supply in a watershed.
Implementation of a Sustainable green economy in Indonesia: A Literature Review
Authors: Masdar R , Husna  , Jurana  , Amborowatie R , Meldawaty L , Tenripada  , Mursali M I , Naida N
Published: December 2022

This study aims to examine the implementation of a sustainable green economy in Indonesia. The issue of the green economy concept supports the achievement of sustainable development goals, especially in Indonesia. This article was compiled by compiling the results of reports issued by government, nongovernment institutions and universities both from within and outside Indonesia. This article compiles several studies on the development of green investment, green economic growth and strategies for greening the economy. This article cannot be used as a concept that can generalize the application of the green economy because it is limited by the application of the methods in this article. However, the results of the research concepts presented in this article can be a reference for further researchers and policy makers.
Investigation of static and dynamic characteristics of electromagnetic sensor
Authors: Djalilov A , Nazarov O , Urolov S , Esemuratova G
Published: December 2022

In recent years, in many parts of the world, including Central Asia, water scarcity has adversely affected the region’s economy, livelihoods and interstate relations. This increases the demand for modern metering equipment for flow and water level. Currently, water management systems in developed countries use and measure water meters with different designs to measure and control the flow and level of water. For this reason, this article investigates the static and dynamic characteristics of an electromagnetic sensor used to measure water flow and level and develops its software.
Impact of absorbents and changes of parameters of absorber operation on the level of absorbation drying of natural gas
Authors: Jumaev Kayum , Zaripov G’olib , Akhadova Dilnora , Amonova Nilufar , Hotamov Qobil
Published: December 2022

The process of gas drying is carried out by improving the technical-economic performance, eliminating negative situations raised, reducing the amount of residual water in regenerated absorbent to less than 0.5% and organizing the process in desorber by holding the temperature in the bottom of desorber below the temperature of thermal destruction of glycol. In this research, alternative methods to increase the efficiency of the passage of water molecules from the gas content in the absorber plates to the absorbent by the mass transfer and the factors influencing the absorption process have been studied.
Combined aggregate for strip tillage and simultaneous sowing of re-crops
Authors: Alimova F A , Primkulov B Sh , Saidova M T , Boboniyozov E A
Published: December 2022

In view of the problem of the specific condition of the fields after harvesting winter crops, special tillage is required to use them for re-sowing. For this purpose, strip tilling was chosen as the most suitable technology. Data on the experimental search for the using it for the rear of repeated crops in permanent drills and in aisles ridges are presented. Based on the principle of vertical and horizontal cutting with simultaneous loosening of the soil, working organs were developed and experimentally tested. The data on the quality of tillage by the working bodies of the recommended device obtained in experimental studies are given. A schematic diagram of the designed combined aggregate with a device for strip tillage before sowing repeated crops is shown. A diagram of the arrangement of the device organs is given. The methods and materials of experimental tests, which were run in two stages, are also indicated. Graphs of changes in the degree of soil grinding and proposed organs traction resistance are described depending on the distance between the ripping disks and the lancet share. The experimental tests results of justification the optimal values of the parameters of the working organs for strip tillage of developed combined aggregate are presented. Based on the results of the research, the results were obtained on the justification of the parameters of the working organs for strip tillage of combined aggregate. The developed aggregate can meet the requirements of no-till sowing of repeated crops. This study can provide recommendations for the design and improvement of implements for reduced tillage in the conditions of Central Asia.
A dynamic study of a chain transmission with a variable centre distance is performed (on the transmission of rotational motion)
Authors: Turdaliyev V M , Komilov S R , Ismoilov A M , Akbaraliyev X X
Published: December 2022

The article taking into account the mechanical characteristics and technological resistances of the operator of a tillage machine with a variable chain drive in the transmission mechanism, the problem of the dynamics of the machine unit with a degree of freedom equal to two is solved, and the laws of mass movement are determined.
Agricultural technology and cotton yield
Authors: Jumanov D T , Kuziboyev J B , Izzatullayev L A
Published: December 2022

In the conducted field experiment, three different densities of cotton bushes (80, 100 and 120,000 per 1 ha, as well as 7.2, 9.0 and 10.8 plants per 1 running meter, respectively), two types of irrigation depending on the limited field moisture. the power of the soil (NPK) regime (70-70-60 and 75-75-60%, as well as the irrigation regime 2-3-0 and 2-4-0, respectively) and the mutual proportions of fertilizers (NPK) in two standards (1: 0.7:0.5 and 1:1:0.5). The annual fertilizer rates were: N200 P140 and K100 and N200 P200 and K100 kg/ha. It was taken into account that the yield of cotton grown under the conditions of 70-70-60% of the soil NVAC (limited field capacity) in the irrigation regime was higher than the yield of 75-75-60% of the irrigated options. during the years of experimentation. At 70-70-60% irrigation regime, depending on the density of the bush and the ratio of fertilizers, the average yield was 35.7-40.9 t/ha, and at 75-75-60% irrigation regime, the average yield by options was 33.2-36.4 q/ha. It was found that the microneuron index of cotton fiber harvested from the experimental options was 4.3-4.5, and the microneuron index of cotton fiber harvested from the variants irrigated in the 70-70-60% mode was slightly higher than in the irrigation mode 75-75-60%.
Application of neurointelligence technology in predicting the development of agribusiness
Authors: Fedotova G V , Kapustina Yu A , Sigidov Yu I , Dzhancharova G K , Lamzin R M , Tsitsige
Published: December 2022

Neural networks have proven to be highly adaptable to various tasks associat-ed with large data sets and their processing in order to obtain new knowledge and data for subsequent planning of the development of various systems. Neural networks are used not only in the processing of large data sets, but also in the construction of predictive models. In this article, we built a neural net-work model for calculating and forecasting profit index of the agro-industrial complex (AIC) of Russia, on the basis of aggregated input factor parameters, reflecting the potential of the industries. In addition to the neural network forecast, the article builds a profit forecast using the method of regres-sion-correlation analysis, which has long been used by economists. For fore-casting purposes, the analysis of the dynamics of development of the branches of agro-industrial complex was carried out and the main factors determining their future opportunities were selected. Using the online platform Deductor Studio Academic assessed the dependence and impact of input indicators on the derived profit indicator and checking the correlation coefficients between the parameters were calculated. The obtained forecasted profit values were com-pared with the actual profit value and the difference in the accuracy of the forecasts was calculated.
Fitability of the high-clearance tractor with the 4K4 wheel arrangement at the row spacing
Authors: Akhmetov A A , Kambarov B A , Isokova Z X , Xatamov B A
Published: December 2022

The results of laboratory, field and household tests of a tractor model implemented on sowing and row-spacing processing of cotton-plant during the growing season are specified in the article. Agrotechnical evaluation of damage to plants and knockability of cotton fruit elements by machine-tractor unit, consisting of compared tractors and cultivator, showed that knocking down cotton fruit elements in one pass at tractor with 4K4 wheel arrangement is less by 10% compared to tractor with 3K2 wheel arrangement. The fitability of cultivator on basis of a high-clearance mock tractor with 4K4 wheel arrangement on cotton-plant processing in the fruiting stage according to main indicators complies with the standards established in the Initial requirements.