Local Potential Research Articles

Lumbar multiunit activity power spectrum during air stepping in the spinal cat: evidence for a flexor-dominated rostrocaudally distributed locomotor center.

Clues about the organization of spinal networks responsible for rhythmic motor behaviors have come from the examination of reflex circuitry, lesioning studies, and single-cell recordings. Recently, more attention has been paid to extracellularly recorded multiunit signals thought to represent the general activity of local cellular potentials. Focusing on the gross localization of spinal locomotor networks, we used multiunit signals of the lumbar cord to classify the activation and organization of those networks. We employed power spectral analysis to compare multiunit power across rhythmic conditions and locations and to infer patterns of activation based on coherence and phase measures. We found greater multiunit power in midlumbar segments during stepping, supportive of previous lesioning studies isolating rhythm-generating capabilities to these segments. We also found much greater multiunit power during the flexion phase of stepping than during the extension phase for all lumbar segments. Greater multiunit power at flexion indicates increased neural activity during this phase and is suggestive of previously reported asymmetries between flexor- and extensor-related interneuronal populations of the spinal rhythm-generating network. Finally, the multiunit power showed no phase lag at coherent frequencies throughout the lumbar enlargement indicative of a longitudinal standing wave of neural activation. Our results suggest that the multiunit activity may be representative of the spinal rhythm-generating activity that is distributed in a rostrocaudal gradient. Additionally, our results indicate that this multiunit activity may operate as a flexor-dominant standing wave of activation that is synchronized throughout the rostrocaudal extent of the lumbar enlargement.NEW & NOTEWORTHY We report on the power spectral analysis of multiunit activity (MUA) of lumbar spinal interneurons during a locomotor task. In line with prior studies, we found evidence of greater power at the frequency of locomotion in high lumbar segments and during the flexion phase. Our results also confirm prior observations from our laboratory that the rhythmically active MUA behaves as a longitudinal standing wave of neural activation that is flexor dominant.

The Thermal Performance of Osing Houses in The Banyuwangi as Humid Tropical References

The Osing houses are one of the various traditional architectures in East Java Province, located in Kemiren Village, Banyuwangi Regency at an altitude of 144 meters above sea level, which is included in a low topography with a unique roof, which has three types of structures, namely Tikel Balung, Crocogan, and Baresan. The House of Osing grew from people with all kinds of traditions and took advantage of various local potentials, such as materials, technology, and existing knowledge. However, the local potential, such as the use of lightweight materials, creates problems hot because the thermal properties of lightweight materials are easy to flow thermally, so they can create overheating conditions and affect comfort conditions in buildings. This study aims to the influence of the design of the Osing house on thermal conditions, describes the material behavior of the design elements that affect the thermal performance of the Osing house. The research was conducted using observation and measurement methods. The final results of this study indicate that houses have not been able to provide thermal comfort, especially during the afternoon to evening, when the condition of the building tends to excessive heat.

Intersectoral Collaboration to Promote Child Development: The Contributions of the Actor-Network Theory

An integrated intersectoral care model promises to meet complex needs to promote early child development and address health determinants and inequities. Nevertheless, there is a lack of understanding of actors' interactions in producing intersectoral collaboration networks. The present study aimed to analyze the intersectoral collaboration in the social protection network involved in promoting early child growth and development in Brazilian municipalities. Underpinned by the tenets of actor-network theory, a case study was conducted with data produced from an educational intervention, entitled "Projeto Nascente." Through document analysis (ecomaps), participant observation (in Projeto Nascente seminars), and interviews (with municipal management representatives), our study explored and captured links among actors; controversies and resolution mechanisms; the presence of mediators and intermediaries; and an alignment of actors, resources, and support. The qualitative analysis of these materials identified three main themes: (1) agency fragility for intersectoral collaboration, (2) attempt to form networks, and (3) incorporation of fields of possibilities. Our findings revealed that intersectoral collaboration for promoting child growth and development is virtually non-existent or fragile, and local potential is missed or underused. These results emphasized the scarcity of action by mediators and intermediaries to promote enrollment processes to intersectoral collaboration. Likewise, existing controversies were not used as a mechanism for triggering changes. Our research supports the need to mobilize actors, resources, management, and communication tools that promote processes of interessement and enrollment in favor of intersectoral collaboration policies and practices for child development.

The significance of the peciren bebadungan cultural symbol value expression in façade design of public buildings in Bali

There is a need to preserve areas with distinct identities by utilizing several local architectural potentials to develop their appearances. One example of this is in the Denpasar and Badung regions of Bali, where the use of peciren bebadungan ornaments is currently being applied to shape their respective identities. The peciren bebadungan is an expression of brick tectonics with strong, hard, and simple characteristics. However, it has been observed that the designs of some public building facades in Bali were produced without due consideration for the meaning and philosophy of these ornaments. Therefore, this research was conducted to examine and analyze the importance of the cultural value symbol expression associated with the peciren bebadungan in Bali using a qualitative exploration method. The findings showed the implementation of the style on several public buildings in Bali, specifically in Denpasar City and Badung Regency, in combination with contemporary designs. Some others also apply the style but with incomplete implementation and modification through a simpler and more minimalistic concept. This was observed to have eliminated the inherent meaning and cultural symbol value. Therefore, it is recommended that the government, architects, as well as the entire community, need to play a very important role in preserving the peciren bebadungan cultural value symbol expression.

Study of the reaction mechanism based on the formation of the first carbocyclic ring from propargyl and diacetylene

The formation of the first carbon ring is a crucial rate-controlling step in developing polycyclic aromatic hydrocarbons (PAHs). It is vital to investigate the mechanism of the creation of the first carbon ring to inhibit the formation of PAHs. To explore the growth process of the first carbocyclic ring, this work used the average localized ionization energy (ALIE) and electrostatic potential (ESP) to predict the reaction sites. Moreover, the reaction paths and chemical kinetic parameters for the generation of the first carbocyclic ring from propargyl (C3H3) + diacetylene (C4H2) are calculated based on the density functional theory (DFT) method and transition state theory (TST). The results showed that the addition reaction of C3H3 +C4H2 can form five-, six- and seven-membered ring molecules, in which the five-membered ring formation is fastest and the six-membered ring formation is slowest. During the formation of the first carbon ring, the activation energy required for the H transfer and cyclization reactions is large, and the reaction rate is slow, which determines the formation rate of the first carbon ring. The rate of H-transfer reaction on each carbon ring depends on the number of C atoms of the carbon ring, with the five-membered ring being the fastest and the six-membered ring the slowest. This paper improves the reaction kinetics and thermodynamic data of the first carbon ring formation during the combustion of hydrocarbon fuels, which offers a powerful theoretical basis for predicting the generation of PAHs.

Strengthening place identity through cultural mapping, Case study: Madura Pendalungan Kampong in Baran-Buring, Malang

The place identity needs to be resurfaced visual-architecturally through place-making and community engagement. From participatory identification of tangible and intangible cultural assets, cultural mapping can increase awareness of cultural assets and a sense of belonging, facilitate network development and collaboration, and prepare village development programs according to local potential. This study aims to compile the potential and resources of Kampung Baran in a participatory manner, and then present it as significant cultural character data in shaping the identity of the place. The research was conducted qualitatively through asset mapping and community identity mapping. Asset mapping is related to the physical resources, while community identity mapping identifies intangible resources. Physical data recording is done through field observation. The on-site data mapping is triangulated through focus group discussions and in-community conversation to identify the intangible resources. Furthermore, the data were categorised, and the relations were analysed to compile the cultural mapping. The results showed that the unity between architectural elements (recontextualization of Omah Gejug), communal space according to the taneyan pattern of Kampung Baran, typical plants, local culinary, traditional arts and language, as well as socio-cultural systems and structures can be visualized to support the revitalization of place identity.

Development of Electronic Student Worksheets Based Local Potential to Enhance Students’ Science Learning Outcomes

Facilities need in the learning process; among the conveniences that can are the application of flexible teaching materials such as electronic student worksheets (E-LKPD). Student worksheets that apply in schools are still general. Good student worksheets are attractive and increase student insight. The study aimed to examine learners' feasibility and response to E-LKPD based on local potential. This research used the development model of ADDIE (analysis, design, development, implementation, evaluation). E-LKPD feasibility was assessed based on the average assessment result by material experts, media experts, and practitioners (teachers) with a feasibility percentage of 87,51, classified as very feasible. Learner's response obtained from average assessment on learners' response in big scale test with a percentage of 78,31, classified as attractive. This statement implies that E-LKPD-based local potential was feasible for use in learning.

In situ DRIFTS and DFT studies of SO2 poisoning over Cu-exchanged X zeolite catalyst for NH3-SCR

Nitrogen oxides (NOx) emitted from diesel engines induces various environmental problems. Selective catalytic reduction with NH3 is an efficient technology for NOx emissions reduction. In this study, copper ion exchanged zeolite catalysts (Cu-X) were prepared from blast furnace slag. Cu-X showed excellent catalytic activity and SO2 tolerance with 84% NO conversion in the presence of 50 ppm SO2. Excessive Cu inhibited the SO2 chemisorption on the active site of zeolite X to some extent. In situ DRIFTS showed that the increase of Cu exchanged amount affected the quantity distribution of bridged hydroxyl group (Si-OH-Al), terminal hydroxyl group (SiOH) and Cun+-L, and the different reaction paths and barriers of the active centers to the chemical adsorption of SO2 led to the different sulfur resistance. DFT kinetic adsorption simulation module was used to simulate the adsorption of gas components on γ -Cu-X catalyst and the transition state of active center. The results showed that the amount of Cu in the adsorption system affected the average local chemical potential during the reaction process, leading to the change of the adsorption heat of SO2 gas in the component of γ-Cu-X catalyst, and the change of the load of SO2 in the Cu-X catalyst cell.

The Role of MSME Workshop by KKM Tematik in Efforts to Increase Productivity of Ketapang Village Community in Mauk District

During this COVID-19 pandemic, there are still many people whose productivity figures have decreased due to the COVID-19 that hit Indonesia since two years ago and its impact on the economy. Therefore, the Thematic Student Work Lecture (KKM) of Universita Sultan Ageng Tirtayasa is to provide workshops or training to the community to stay productive during the pandemic. The population of activities in Ketapang village is all residents but the intended target is mothers and adults in Ketapang village can be productive so that they can create jobs and can take advantage of the village's potential in the form of seafood to make frozen food such as dimsum and others. The KKM implementation method is a program oriented to community assistance in the economic field, exploring local potential, and exploring the potential of human resources. The purpose of this study was to increase the productivity of the Ketapang village community during the pandemic by holding a dimsum sales MSME workshop. Some of the results achieved were the audience's understanding of MSMEs, and providing socialization of training on how to make dim sum, as well as helping to promote citizen entrepreneurship.

Collaboration of Local Potentials in Supporting Sustainable Development (A Study in Kaserangan Village, Pontang Sub-District, Serang Regency)

Student Community Service (Kuliah Kerja Mahasiswa/KKM) is an activity that provides experiences in empowering communities which becomes a golden opportunity for students to express their ideas, innovations, and thoughts that sharpen critical thinking. Through the implementation of KKM, it is expected that students are able to develop social and personal competencies. The community service methods carried out by KKM Group 112 students are through KKM orientation, entrepreneurship counseling and mentoring for micro, small and medium enterprises (MSMEs), mutual cooperation activities, digital marketing education seminars, halal studies socialization, sexual violence socialization, and teaching at elementary schools and kindergartens. The target audience of this activity is the surrounding community of the KKM location, which consists of housewives, micro-business owners, and children of Kaserangan Village.

Electrostatic screening in a wire medium

We extensively study screening in anisotropic artificial media formed by arrays of parallel metal wires both analytically and experimentally. Our findings show that the electrostatic potential distribution produced by probe charge is spherically symmetrical in the vicinity of the source. We also derive a boundary condition for the wire medium and confirm its validity experimentally. Despite the finite dimensions of the wire arrays, the field symmetry near the charge remains unaffected, but a local maximum potential is produced at the boundary. The screening depth of the wire medium is determined by its geometrical parameters and is proportional to the plasma frequency, which leads us to propose an experimental method for defining plasma frequency through static E-field measurement.

Local position-space two-nucleon potentials from leading to fourth order of chiral effective field theory

We present local, position-space chiral NN potentials through four orders of chiral effective field theory ranging from leading order (LO) to next-to-next-to-next-to-leading order (N3LO, fourth order) of the Delta-less version of the theory. The long-range parts of these potentials are fixed by the very accurate pi-N LECs as determined in the Roy-Steiner equations analysis. At the highest order (N3LO), the NN data below 190 MeV laboratory energy are reproduced with the respectable chi^2/datum of 1.45. A comparison of the N3LO potential with the phenomenological Argonne v_18 (AV18) potential reveals substantial agreement between the two potentials in the intermediate range ruled by chiral symmetry, thus, providing a chiral underpinning for the phenomenological AV18 potential. Our chiral NN potentials may serve as a solid basis for systematic ab initio calculations of nuclear structure and reactions that allow for a comprehensive error analysis. In particular, the order by order development of the potentials will make possible a reliable determination of the truncation error at each order. Our new family of local position-space potentials differs from existing potentials of this kind by a weaker tensor force as reflected in relatively low D-state probabilities of the deuteron (P_D less or equal 4.0% for our N3LO potentials) and predictions for the triton binding energy above 8.00 MeV (from two-body forces alone). As a consequence, our potentials may lead to different predictions when applied to light and intermediate-mass nuclei in ab initio calculations and, potentially, help solve some of the outstanding problems in microscopic nuclear structure.

PRODUK KEWIRAUSAHAAN DARI LIMBAH BIJI RAMBUTAN DESA SUKOSARI DUSUN PULOSARI KASEMBON

The need for food in human life affects food sources that continue to increase. As one of the efforts that can be made by utilizing local potential that can be processed into food products for the abundance of existing potential. Judging from the local potential of Dusun Pulosari Kasembon East Java in the form of rambutan plants planted in the yard of the house as a shade tree. During the rambutan season, residents only use the fruit for personal consumption and sale. Meanwhile, rambutan seeds (Nephelium sp) can be used as side products, such as the popular rambutan seed chips and nuts. The method used in this activity was in the form of training (socialization) which was carried out as part of Group 115 KKM activities which were primarily aimed at the people of Pulosari Hamlet, Kasembon District. The purpose of this activity is as a form of education and training for residents in processing rambutan seeds into chips and rambutan seed nuts which will later be developed and sold to the general public. The result of this training is to provide knowledge and convenience for residents to utilize rambutan seeds which have not been used so far so that they become a commodity of economic value.

Oligodendrocyte-mediated myelin plasticity and its role in neural synchronization.

Temporal synchrony of signals arriving from different neurons or brain regions is essential for proper neural processing. Nevertheless, it is not well understood how such synchrony is achieved and maintained in a complex network of time-delayed neural interactions. Myelin plasticity, accomplished by oligodendrocytes (OLs), has been suggested as an efficient mechanism for controlling timing in brain communications through adaptive changes of axonal conduction velocity and consequently conduction time delays, or latencies; however, local rules and feedback mechanisms that OLs use to achieve synchronization are not known. We propose a mathematical model of oligodendrocyte-mediated myelin plasticity (OMP) in which OLs play an active role in providing such feedback. This is achieved without using arrival times at the synapse or modulatory signaling from astrocytes; instead, it relies on the presence of global and transient OL responses to local action potentials in the axons they myelinate. While inspired by OL morphology, we provide the theoretical underpinnings that motivated the model and explore its performance for a wide range of its parameters. Our results indicate that when the characteristic time of OL's transient intracellular responses to neural spikes is between 10 and 40 ms and the firing rates in individual axons are relatively low (10 Hz), the OMP model efficiently synchronizes correlated and time-locked signals while latencies in axons carrying independent signals are unaffected. This suggests a novel form of selective synchronization in the CNS in which oligodendrocytes play an active role by modulating the conduction delays of correlated spike trains as they traverse to their targets.

Optimalisasi Potensi Pertumbuhan Ekonomi Masyarakat Lokal melalui Rekonstruksi Pariwisata Syariah Pulau Santen Banyuwangi Jawa Timur

Optimizing the utilization of local potential is one of the next steps in community self-help that utilizes local potential and resources. This potential includes all existing potential such as natural resources, human resources, social resources. one form of optimizing the utilization of local potential in empowering the community's economy is through the utilization of the potential of human resources. Shariah Beach is a new concept of halal tourism and has become a promotional event for Banyuwangi Regency. The formulation of the problem that will be put forward is: How is the reconstruction of tourism on Santen Banyuwangi Island, which used to be free, now has a sharia concept? How does the district government or tourism manager involve the local community, either directly or indirectly, who contribute to the local community on Santen Banyuwangi Island?.This type of research includes the type of qualitative research, descriptive research methods. Data analysis techniques: data collection, data reduction, data presentation and conclusion. Research results 1)Reconstruction of tourism which used to have a free concept that seemed dirty, dirty and had negative ideals has now turned into a sharia beach so that it has the benefit of increasing income and empowering youth so that no one is unemployed after being recruited to become members of the Pokdarwis on Santen Island 2) District government or administrator tourism involves the local community both directly and indirectly which contributes to empowering the local community on Banyuwangi Santen Island, the management of Santen Island with residents is still not optimal. While contributions in the economic sector increase people's income, in the education sector increase teaching and learning activities, in the socio-cultural field it favors the culture of local people who use Javanese and Madurese.

Vacancy-superlattice–induced higher-order topological corner states in a Chern insulator

Recent studies have discovered local potentials can induce nontrivial eigenmodes responding to the bulk topology for the system. While previous studies focused on conventional first-order topological states emerging from vacancy superlattice, here we study higher-order topological properties of the vacancy superlattice on a two-dimensional Chern insulator with particle-hole symmetry. The vacancy superlattice with alternate lattice spacings exhibits an emergent second-order topological phase characterized by the nontrivial edge polarization. This topological phase is robust against particle-hole symmetry-preserved perturbations as long as the energy gap remains open for the mid-gap states. Our work generalizes the nontrivial higher-order topological properties to a Chern insulator with local defect vacancies and provides a controllable platform for engineering higher-order topological corner states.

Smart energy approaches for carbon abatement: Scenario designs for Chile's energy transition

This study develops scenarios aiming to transition the Chilean energy system in 2050 to 100% renewable energy; taking into account local resource potentials, demands, cross-sectoral integration of the electricity, heating, transport, and industrial sectors, and synergies in their related infrastructures. The energy system model EnergyPLAN is used to simulate the hourly operation of the energy system. The relationship between potential CO2 emissions reductions and relative costs is estimated using marginal abatement cost curves with the EPLANoptMAC tool to assess the optimal sequence of capacity expansion and carbon abatement alternatives. The analysis demonstrates that it is possible to carry out this transition from a technical perspective more efficiently than what is proposed with current national scenarios while still aligning with climate neutrality targets; and that, in different phases of the Chilean energy transition, specific options could be prioritized based on an improved balance between carbon abatement and costs.

Pelatihan Kewirausahaan Pembuatan Produk Olahan Pisang Bagi Mama-Mama Asli Papua di Kelurahan Mandala

The purpose of this service is to increase the entrepreneurial interest of Papua Aboriginal women in Mandala Village. We will also increase the production of banana raw materials that can be processed into products with high economic value. The method of delivery of this service activity is lecture, discussion, and hands-on practice. The outcome achieved was learning opportunities and support to improve entrepreneurial management, as well as entrepreneurial training on how to manufacture processed banana products for Papuan indigenous women in Mandala Village. In addition, increased interest in entrepreneurship among Papuan indigenous women in Mandala Village is expected to reduce unemployment and poverty in the region. This service activity is also expected to have a positive impact on the environment. B. Improve common interests and strengthen local economies. In the long term, this activity aims to be a role model for other communities to start businesses and develop local potential in their respective regions.

Nonlocal optical potential with core excitation in [formula omitted] and [formula omitted] reactions

We propose a new nonlocal form of the nucleon-nucleus optical potential and demonstrate its reliability. We extend the nonlocal potential to include the excitation of the nuclear core and develop energy-independent proton-Be10 potential reasonably reproducing the experimental data at low energies. We apply the new potential to the study of deuteron stripping and pickup reactions Be10(d,p)11Be and Be11(p,d)10Be using rigorous three-body Faddeev-type equations for transition operators that are solved in the momentum-space partial-wave framework. The achieved description of the experimental data is considerably more successful as compared to previous studies with local potentials. The values of spectroscopic factors consistent with the data are determined, exhibiting only weak energy dependence. The results possibly indicate an increased predicting power of the proposed calculational scheme.

Elastic shear modulus and density profiles inversion: Lipschitz stability results

In this paper, we consider the inverse coefficients problem of recovering a shear modulus μ and density ρ of a medium from the Neumann-to-Dirichlet map. This inverse problem is motivated by the reconstruction of mechanical properties of tissues in non-destructive testing. We prove Lipschitz stability results for any dimension d ≥ 2 , provided that the parameters μ and ρ have upper and lower bounds and belong to a known finite dimensional subspace. The proofs rely on monotonicity relations between the parameters and the Neumann-to-Dirichlet operator, combined with the techniques of localized potentials.