Miracle-dz/UniFAR-FTUs huggingface dataset:
Design teams and industry life cycles: The interplay of innovation and complexity

This paper studies how innovation teams can be optimally configured to yield the best possible performance at different stages of a certain technology's life cycle, which correspond to different levels of environmental complexity. To conduct our analysis, we have employed computational simulations of communities searching NK landscapes at varying levels of complexity. We studied how the relative proportion of exploring agents to exploiting agents in a community impacts the evolution of scores over time, and conducted additional investigations into the role of specialization (i.e., the agents' propensity to take their preferred action) and density (i.e., the expected width of social groups within the community).
ANALISIS KORELASI NILAI MICROTEACHING GURU DENGAN KEMAMPUAN PEMBUATAN SOAL YANG MENGINTEGRASIKAN BERPIKIR KOMPUTASIONAL PADA MATA PELAJARAN MELALUI GERAKAN PANDAI

Berpikir Komputasional (BK) merupakan metode berpikir secara sistematis dan logis dalam menyelesaikan suatu masalah. Biro Bebras Universitas Telkom menyelenggarakan lokakarya dengan tujuan melatih guru untuk mengintegrasikan BK ke dalam mata pelajaran pada rumpun STEM maupun non-STEM untuk tingkat SD, SMP dan SMA. Pada lokakarya ini, terdapat 146 peserta guru yang setengahnya merupakan guru SMA atau sederajat dan lebih dari seperempatnya adalah guru SD atau sederajat. Dalam kegiatan lokakarya, guru-guru diberikan pelatihan BK, membuat rencana pembelajaran (RP), membuat deskripsi soal (DS) dan melaksanakan microteaching (MT) sebagai penerapan dari kegiatan lokakarya. Dari hasil analisis data yang dilakukan, nilai korelasi antara nilai pembuatan DS dan aktivitas MT secara keseluruhan adalah 0,08151 dari total 33 peserta yang mengikuti serangkaian tugas DS dan MT. Sehingga, secara statistik dapat disimpulkan bahwa tidak ada pengaruh signifikan antara aktivitas pembuatan DS dengan aktivitas MT pada kegiatan lokakarya ini.
Multilevel preconditioners for strongly anisotropic problems

In this dissertation, we develop new multilevel approaches to precondition algebraic problems stemming from the finite volume discretization of the diffusion equation with anisotropic, discontinuous coefficients. Two approaches are discussed. In the first approach, preconditioners are based on a partitioning of the mesh in the (x, y)-plane into non-overlapping subdomains and on a special coarsening algorithm within each of the mesh layers. We show that the technique can be directly applied to the prismatic meshes based on arbitrary 2D Voronoi mesh cells. Obtained numerical results comply with the theoretical statement that the condition number of the preconditioned system receives neither an impact from diffusion tensor anisotropy nor from the thickness of thin mesh layers. The second approach is of the algebraic multigrid type. The approach is based on the representation of the graph of the system matrix as a union of clusters. The clusters are used to design and analyze coarsening algorithms. The multilevel framework involves inner Chebyshev iterations. We construct preconditioners for two model problems (domain with a thin layer and domain with a canal) and compare performance of our preconditioners with that of another algebraic multigrid preconditioner.
Hypersonic Pitching-Moment Shift for Stardust Reentry Capsule Forebody

Aerodynamic coefficients are presented for perfect-gas and equilibrium-air solutions of the Navier-Stokes equations about the Stardust reentry-capsule forebody at Mach numbers of 4.6, 7, 8.5, and 10. A comparison with Newtonian-flow assumptions indicates a divergence of the aerodynamic coefficients from Newtonian-flow for Mach numbers less than 10. The static stability of the forebody is reduced by a factor of 2.5 with decreasing freestream Mach number between Mach 10 and 7.
A new linear algorithm for checking a graph for 3-edge-connectivity

A new algorithm to test an arbitrary graph for 3-edge-connectivity is proposed, implemented and tested. It is a modification of the classic linear algorithm of Hopcroft and Tarjan for dividing a graph into 3-connected components. The algorithm uses three depth-first searches to locate separation pairs. It runs in time O(m + n), where m is the number of edges and n is the number of vertices in the graph. Testing was done on simple graphs and Feynman diagrams. The results show good agreement with the time complexity analysis, validating the algorithm design and implementation. Index words: edge connectivity, 3-edge-connected graph, linear algorithm, depth-first search A NEW LINEAR ALGORITHM FOR CHECKING A GRAPH FOR 3-EDGE-CONNECTIVITY
A Derivation of the Probabilistic Explication of Information

SUMMARY The quantitative explication of I(H: EJ G), the amount of information concerning H provided by E given G, is obtained by assuming that I(H: E. F i G) is some function of I(H: E G I ) and I(H: F I E. G). This assumption is less restrictive than the more customary assumption of strict additivity. LET E, F, G and H be propositions, and let I(H: EJ G) denote the amount of information concerning H provided by E given G. We shall consider the explication of I(H: El G) as a real number in terms of probabilities. We shall not discuss the theory of communication (Shannon and Weaver, 1949) in which expected amounts of information are relevant. We write E. F for the logical conjunction of two propositions E and F. Our conclusion, based on some very reasonable desiderata (called "axioms"), is that I(H: El G) should be defined as a continuous monotonic function of the association factor, P(H.EJ G)/{P(HJ G)P(EJ G)} or P(EJ H. G)/P(EJ G),
Fermi-level pinning through defects at GaAs/oxide interfaces: A density functional study

Using density functional calculations, we study a set of candidate defects for Fermi-level pinning at GaAs/oxide interfaces. The set of considered defects comprises both bulklike and interfacial defects, including As antisites, Ga and As dangling bonds, the As-As dimer/dangling bond defect, and several defect complexes. The defects are generated within atomistic model structures representing the GaAs/Al2O3 interface. Formation energies of bulklike defects are obtained and compared with those of corresponding bulk defects, while interfacial defects are studied through their relative defect energies. Finite-size corrections to the defect energies are applied through a scheme that accounts for the interfacial geometry of our models. Defect levels are defined as thermodynamic transition levels between different charge states and are calculated for all considered defects. Through an alignment procedure based on hybrid functional calculations, the defect levels are then positioned within the calculated band gap of GaAs that reproduces the experimental one, thereby enabling direct comparisons with the experimental density of defect states. Our study shows that several As-related defects show a similar amphoteric bistability between an As-As dimer state and a configuration with two doubly occupied As dangling bonds. The associated charge transition levels generally lie in the midgap region, in accord with experimental observations. This mechanism is proposed as the origin of the observed Fermi-level pinning at GaAs/oxide interfaces.
A 32-Channel C-Band Hybrid Wavelength/ Polarization Division (de)multiplexer on Silicon

A 32-channel hybrid (de)multiplexer on silicon is designed and experimentally demonstrated to enable polarization division multiplexing (PDM) and wavelength division multiplexing (WDM) for improving the capacity of optical communication links. The hybrid (de)multiplexer is realized by monolithically integrating a polarization rotator and splitter (PRS) and two 16-channel microring resonators (MRRs) arrays. The through and cross ports of the PRS are connected to the bus waveguide of the MRR arrays, respectively. In order to ensure a larger free spectrum range (FSR) to cover all wavelength channels, the radius of the microring is about 3 <inline-formula><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula>m and the wavelength-channel spacing is 1.6 nm. For the hybrid (de)multiplexer, the crosstalk between the adjacent channels and the non-adjacent channels are −20 dB and −25 dB, respectively. When TE<inline-formula><tex-math notation="LaTeX">$_{0}$</tex-math></inline-formula> mode input, the insertion loss is 1.5 dB–3.8 dB, the crosstalk between the through and cross port is less than −24 dB. When TM<inline-formula><tex-math notation="LaTeX">$_{0}$</tex-math></inline-formula> mode inputs, the insertion loss is 1.9 dB–4.5 dB and the polarization crosstalk is less than −22 dB. In order to eliminate the influence of the fabrication errors and temperature on resonance wavelength, a TiN thermal tuning electrode is added to calibrate the deviation of the wavelength.
Identification of Anti-gp41 Monoclonal Antibodies That Effectively Target Cytotoxic Immunoconjugates to Cells Infected with Human Immunodeficiency Virus, Type 1

We are developing cytotoxic immunoconjugates (CICs) targeting the envelope protein (Env) of the Human Immunodeficiency Virus, type 1 (HIV) to purge the persistent reservoirs of viral infection. We have previously studied the ability of multiple monoclonal antibodies (mAbs) to deliver CICs to an HIV-infected cell. We have found that CICs targeted to the membrane-spanning gp41 domain of Env are most efficacious, in part because their killing is enhanced in the presence of soluble CD4. The ability of a mAb to deliver a CIC does not correlate with its ability to neutralize nor mediate Ab-dependent cellular cytotoxicity. In the current study, we seek to define the most effective anti-gp41 mAbs for delivering CICs to HIV-infected cells. To do this, we have evaluated a panel of human anti-gp41 mAbs for their ability to bind and kill two different Env-expressing cell lines: persistently infected H9/NL4-3 and constitutively transfected HEK293/92UG. We measured the binding and cytotoxicity of each mAb in the presence and absence of soluble CD4. We found that mAbs to the immunodominant helix-loop-helix region (ID-loop) of gp41 are most effective, whereas neutralizing mAbs to the fusion peptide, gp120/gp41 interface, and the membrane proximal external region (MPER) are relatively ineffective at delivering CICs. There was only a weak correlation between antigen exposure and killing activity. The results show that the ability to deliver an effective IC and neutralization are distinct functions of mAbs.
AN ANALYSIS OF SHOOTING ACCURACY TOWARDS ARCHERY ATHLETE’S ARM LENGTH, ARM STRENGTH, AND BODY MASS INDEX (A Study of KONI Bandung District, Archery Division)

Background. Accuracy in archery is the ability to achieve (point) against the target or Target Face when the arrows are out of the bow using a high level of consentration in carrying out a series of shooting techniques. Based on many numbers of arrow athletes who won the championship by balancing their body balance and maintaining their stamina.Purpose. To understand the possibility of any potencies or some overviews of sleeve length, arm muscle strength, limb length, and body mass towards the archery accuracy in archery athletes.Method. This research is an analytic observational research with a cross sectional approach, which is a research that emphasizes measurement time or data observation one time at a time, which is done on the dependent variable and independent variable. This research only makes observations, without giving any intervention on researched variables. The data analysis used is pearson correlation test and using hypothesis test, and by performing a linear regression test.Result. The pearson correlation test using sleeve length towards the accuracy of archery showed the correlation score (r) equal to 0,576 (p=0,002) significant (p<0.05), limb length towards the archery accuracy with the correlation score (r ) equal to 0,631 (p=0,001) significant (p<0,05). And the hipothesis test obtained the arm length, limb length, and body mass index showed that there was not any meanignful correlation towards the accuracy of archery, and dominantly correlating with the arm muscle strength.Conclusion. The accuracy in archery has a high effect, namely with sufficient training to build good muscle strength.Key Words. Accuracy of archery, exercise, arm muscle strength.
Elementary Proof of the Remez Inequality

The famous Russian mathematician Pafnutii Lvovich Tchebycheff (1821-1894) introduced T1(x) as the polynomial of least uniform norm on [-1, 1] amid the polynomials of degree n with fixed leading coefficient. The Tchebycheff polynomials appear prominently in various extremal problems posed in irn (the set of all polynomials of degree n). An illuminating example is the classical Markov inequality, Which shows that
Performance of preconditioned iterative and multigrid solvers in solving the three-dimensional magnetotelluric modeling problem using the staggered finite-difference method: a comparative study

An effective solver for the large complex system of linear equations is critical for improving the accuracy of numerical solutions in three-dimensional (3D) magnetotelluric (MT) modeling using the staggered finite-difference (SFD) method. In electromagnetic modeling, the formed system of linear equations is commonly solved using preconditioned iterative relaxation methods. We present 3D MT modeling using the SFD method, based on former work. The multigrid solver and three solvers preconditioned by incomplete Cholesky decomposition—the minimum residual method, the generalized product bi-conjugate gradient method and the bi-conjugate gradient stabilized method—are used to solve the formed system of linear equations. Divergence correction for the magnetic field is applied. We also present a comparison of the stability and convergence of these iterative solvers if divergence correction is used. Model tests show that divergence correction improves the convergence of iterative solvers and the accuracy of numerical results. Divergence correction can also decrease the number of iterations for fast convergence without changing the stability of linear solvers. For consideration of the computation time and memory requirements, the multigrid solver combined with divergence correction is preferred for 3D MT field simulation.
CAN TOXIC MASCULINITIES BE DE-RADICALISED?: MAPPING THE DYNAMICS AND SPREAD OF INCEL IDEOLOGY ONLINE

In recent years, male supremacist and anti-women formations have become increasingly prevalent online. In particular, considerable attention has been focused on the incel (involuntary celibate) community due to a number of high-profile mass killings in the United States, Canada and, more recently, the UK. Incel ideology is a misogynistic formation, whose male proponents blame women for their lack of sexual activity. It operates in the broader virtual space of the manosphere, a loose conglomerate of online communities spread across various digital platforms, which are united in their antipathy toward feminism, their belief in evolutionary psychology and their adherence to the Red Pill (a process of enlightenment, whereby one comes to understand the world as a liberal feminist conspiracy that disadvantages men). This research tracks the dynamic pathways by which incel ideology spreads within and across online communities, digital platforms and geographical spaces, with a view to better understanding processes of radicalization, including ‘algorithmic radicalization. ’ We also explore the dynamic interplay between incel and alt-right rhetoric. Understanding the contagion dynamics of extremist ideas - how such ideas circulate, gain new audiences, and morph into new ones - is crucial to researchers, educators, platforms and security practitioners: However, theoretical and practical understanding of the online contagion of extremist ideologies is lacking. It is only by understanding these ‘pilling pipelines’ (Ging and Murphy 2021) that effective interventions can be developed, whether educational, technological, legal or platform-governance-related.
Spatial-Temporal Heterogeneity in Large Three-Dimensional Nanofibrillar Cellulose Hydrogel for Human Pluripotent Stem Cell Culture

One approach to cell expansion is to use large hydrogel for growing a large number of cells. Nanofibrillar cellulose (NFC) hydrogel has been used for human induced pluripotent stem cell (hiPSCs) expansion. However, little is known about the status of hiPSCs at the single cell level inside large NFC hydrogel during culture. To understand the effect of NFC hydrogel property on temporal–spatial heterogeneity, hiPSCs were cultured in 0.8 wt% NFC hydrogel with different thicknesses with the top surface exposed to the culture medium. The prepared hydrogel exhibits less restriction in mass transfer due to the presence of macropores and micropores interconnecting the macropores. More than 85% of cells at different depths survive after 5 days of culture inside 3.5 mm thick hydrogel. Biological compositions at different zones inside the NFC gel were examined over time at a single-cell level. A dramatic concentration gradient of growth factors estimated in the simulation along 3.5 mm NFC hydrogel could be a reason for the spatial–temporal heterogeneity in protein secondary structure and protein glycosylation and pluripotency loss at the bottom zone. pH change caused by the lactic acid accumulation over time leads to changes in cellulose charge and growth factor potential, probably another reason for the heterogeneity in biochemical compositions. This study may help to develop optimal conditions for producing high-quality hiPSCs in large nanofibrillar cellulose hydrogel at scale.
Molecular Genetic Research and Genetic Engineering of Taraxacum kok-saghyz L.E. Rodin

Natural rubber (NR) remains an indispensable raw material with unique properties that is used in the manufacture of a large number of products and the global demand for it is growing every year. The only industrially important source of NR is the tropical tree Hevea brasiliensis (Willd. ex A.Juss.) Müll. Arg. , thus alternative sources of rubber are required. For the temperate zone, the most suitable source of high quality rubber is the Russian (Kazakh) dandelion Taraxacum kok-saghyz L.E. Rodin (TKS). An obstacle to the widespread industrial cultivation of TKS is its high heterozygosity, poor growth energy, and low competitiveness in the field, as well as inbreeding depression. Rapid cultivation of TKS requires the use of modern technologies of marker-assisted and genomic selection, as well as approaches of genetic engineering and genome editing. This review is devoted to describing the progress in the field of molecular genetics, genomics, and genetic engineering of TKS. Sequencing and annotation of the entire TKS genome made it possible to identify a large number of SNPs, which were subsequently used in genotyping. To date, a total of 90 functional genes have been identified that control the rubber synthesis pathway in TKS. The most important of these proteins are part of the rubber transferase complex and are encoded by eight genes for cis-prenyltransferases (TkCPT), two genes for cis-prenyltransferase-like proteins (TkCPTL), one gene for rubber elongation factor (TkREF), and nine genes for small rubber particle proteins (TkSRPP). In TKS, genes for enzymes of inulin metabolism have also been identified and genome-wide studies of other gene families are also underway. Comparative transcriptomic and proteomic studies of TKS lines with different accumulations of NR are also being carried out, which help to identify genes and proteins involved in the synthesis, regulation, and accumulation of this natural polymer. A number of authors already use the knowledge gained in the genetic engineering of TKS and the main goal of these works is the rapid transformation of the TKS into an economically viable rubber crop. There are no great successes in this area so far, therefore work on genetic transformation and genome editing of TKS should be continued, considering the recent results of genome-wide studies.
Pastro polynomials and Sobolev-type orthogonal polynomials on the unit circle based on a q-difference operator

ABSTRACT Applications of orthogonal polynomials on the unit circle have attracted the attention of many researchers in recent years. Pastro polynomials, which are basic hypergeometric polynomials, are known to be biorthogonal polynomials on the unit circle. However, with special choice of parameters they provide one of the nicest examples of orthogonal polynomials on the unit circle. Our objective here is to consider some properties of three sequences of polynomials which are related to these Pastro orthogonal polynomials on the unit circle by a q-difference operator. We also provide information regarding connection formulas, bounds for the connection coefficients as well as outer relative asymptotics associated with these sequences of polynomials.
Beam Shaping of Base Station Antenna Array by Using MMPTE

In this paper, a beam shaping scheme is presented for the optimal design of base station antenna array. The antenna array consists of four linearly arranged dual-band dual-polarized antenna elements, and it is designed to cover the LTE frequency band (2.3-2.69 GHz) and 5G frequency band (3.3-3.6 GHz). The shaped beams with possible maximum gain, suppressed sidelobe level smaller than −16 dB, front-to-back ratio larger than 18dB, and filled-up null point larger than −23 dB are accomplished through two steps by using the unconstrained methods of maximum power transmission efficiency (MMPET) and constrained MMPTE, respectively. In the proposed beam shaping scheme, all the realistic factors of the antenna array have been taken into account, such as the difference of element radiation patterns, complexity and tolerance of the element structure and spacing.
Impact of non-random vibrations in Mössbauer rotor experiments testing time dilation

All experiments testing time dilation by measuring the spectral shift of a rotating Mössbauer absorber assume that vibrations do not affect the spectral shift because of their purely random nature and claim that the observed shift is due to time dilation only. Our recent experiment using the Synchrotron Mössbauer Source at ESRF revealed, however, a shift due to the non-random periodic vibration patterns caused by the rotor/bearing system. These patterns fit the predictions of the Jeffcott model for such a system with non-zero eccentricity. We have calculated this shift due to the non-random vibrations and the resulting relative shift between two states when the acceleration of the absorber is anti-parallel and parallel to the source. This relative shift exhibits the same behavior as the observed relative shift. Hence, the effect of the spectral shift due to vibrations cannot be ignored in any Mössbauer rotor experiments for testing time dilation. Recommendations for improvement of future rotor experiments testing time dilation are presented.