Leontief Model Analysis with Fuzzy Parameters by Basic Matrixes Method

The basic matrixes method is suggested for the Leontief model analysis (LM) with some of its components indistinctly given. LM can be construed as a forecast task of product’s expenses-output on the basis of the known statistic information at indistinctly given several elements’ meanings of technological matrix, restriction vector and variables’ limits. Elements of technological matrix, right parts of restriction vector LM can occur as functions of some arguments. In this case the task’s dynamic analog occurs. LM essential complication lies in inclusion of variables restriction and criterion function in it

Regular accelerating Universe without dark energy

Homogeneous isotropic cosmological models with two torsion functions filled with scalar fields and usual gravitating matter are built and investigated in the framework of the Poincar\'e gauge theory of gravity. It is shown that by certain restrictions on indefinite parameters of gravitational Lagrangian the cosmological equations at asymptotics contain an effective cosmological constant that can explain observable acceleration of cosmological expansion. The behavior of inflationary cosmological solutions at extremely high energy densities is analyzed, regular bouncing solutions are obtained. The role of the space-time torsion provoking the acceleration of cosmological expansion is discussed.Comment: 15 pages, 16 figures, iopart class file, some additions mad

Flux control of cytochrome c oxidase in human skeletal muscle

In the present work, by titrating cytochrome c oxidase (COX) with the specific inhibitor KCN, the flux control coefficient and the metabolic reserve capacity of COX have been determined in human saponin-permeabilized muscle fibers. In the presence of the substrates glutamate and malate, a 2.3 ± 0.2-fold excess capacity of COX was observed in ADP-stimulated human skeletal muscle fibers. This value was found to be dependent on the mitochondrial substrate supply. In the combined presence of glutamate, malate, and succinate, which supported an approximately 1.4-fold higher rate of respiration, only a 1.4 ± 0.2-fold excess capacity of COX was determined. In agreement with these findings, the flux control of COX increased, in the presence of the three substrates, from 0.27 ± 0.03 to 0.36 ± 0.08. These results indicate a tight in vivo control of respiration by COX in human skeletal muscle. This tight control may have significant implications for mitochondrial myopathies. In support of this conclusion, the analysis of skeletal muscle fibers from two patients with chronic progressive external ophthalmoplegia, which carried deletions in 11 and 49% of their mitochondrial DNA, revealed a substantially lowered reserve capacity and increased flux control coefficient of COX, indicating severe rate limitations of oxidative phosphorylation by this enzyme

Pengembangan Aplikasi Kasir Online UKM di Kota Makassar

Abstrak Penelitian ini bertujuan untuk menghasilkan aplikasi kasir online dalam bentuk website yang dapat membantu mengelola proses transaksi di kasir pada UKM-UKM di Kota Makassar. Penelitian ini menggunakan model prototype dalam proses pengembangan aplikasinya dan diuji berdasarkan 4 standar kualitas ISO 25010 yang terdiri dari functionality suitability, performance efficiency, portability dan usability. Adapun hasil pengujian sistem menggunakan standar ISO 25010 tersebut yaitu pada pengujian functionality suitability yang diuji oleh ahli sistem dengan mengisi angket yang berisi pernyataan-pernyataan terkait fungsi-fungsi yang didesain dalam sistem yang dikembangkan, diperoleh nilai pengujian berada dikategori dapat diterima yaitu semua fungsi bernilai 1. Pada pengujian performance efficiency digunakan GTMetrix yang akan menguji kecepatan akses setiap halaman web dan load time-nya, sehingga diperoleh nilai load-time 3,2 detik dengan persentase 87% sehingga telah memenuhi aspek performance efficiency. Pada pengujian portability, aplikasi diuji dengan menjalankannya di beberapa perangkat dengan sistem operasi yang berbeda dimana aplikasi dapat berjalan dengan baik, sehingga aspek portability telah terpenuhi. Pengujian terakhir pada aplikasi ini adalah pengujian usability yang dilakukan dengan pembagian angket kepada 25 orang responden dan diperolah persentase 86,07% sehingga dapat dinyatakan bahwa aplikasi yang dikembangan berada pada kategori sangat baik. Kata Kunci: Aplikasi Kasir, Online, Website, Transaksi Kasir, ISO 25010

Aplikasi Kasir Online UKM di Kota Makassar

Abstrak - Penelitian ini bertujuan untuk menghasilkan aplikasi kasir online dalam bentuk website yang dapat membantu mengelola proses transaksi di kasir pada UKM-UKM di Kota Makassar. Penelitian ini menggunakan model prototype dalam proses pengembangan aplikasinya dan diuji berdasarkan 4 standar kualitas ISO 25010 yang terdiri dari functionality suitability, performance efficiency, portability dan usability. Adapun hasil pengujian sistem menggunakan standar ISO 25010 tersebut yaitu pada pengujian functionality suitability yang diuji oleh ahli sistem dengan mengisi angket yang berisi pernyataan-pernyataan terkait fungsi-fungsi yang didesain dalam sistem yang dikembangkan, diperoleh nilai pengujian berada dikategori dapat diterima yaitu semua fungsi bernilai 1. Pada pengujian performance efficiency digunakan GTMetrix yang akan menguji kecepatan akses setiap halaman web dan load time-nya, sehingga diperoleh nilai load-time 3,2 detik dengan persentase 87% sehingga telah memenuhi aspek performance efficiency. Pada pengujian portability, aplikasi diuji dengan menjalankannya di beberapa perangkat dengan sistem operasi yang berbeda dimana aplikasi dapat berjalan dengan baik, sehingga aspek portability telah terpenuhi. Pengujian terakhir pada aplikasi ini adalah pengujian usability yang dilakukan dengan pembagian angket kepada 25 orang responden dan diperolah persentase 86,07% sehingga dapat dinyatakan bahwa aplikasi yang dikembangan berada pada kategori sangat baik. Kata Kunci: Aplikasi Kasir, Online, Website, Transaksi Kasir, ISO 25010

Design and analysis of bent functions using M\mathcal{M}-subspaces

In this article, we provide the first systematic analysis of bent functions $f$ on $\mathbb{F}_2^{n}$ in the Maiorana-McFarland class $\mathcal{MM}$ regarding the origin and cardinality of their $\mathcal{M}$-subspaces, i.e., vector subspaces on which the second-order derivatives of $f$ vanish. By imposing restrictions on permutations $\pi$ of $\mathbb{F}_2^{n/2}$, we specify the conditions, such that Maiorana-McFarland bent functions $f(x,y)=x\cdot \pi(y) + h(y)$ admit a unique $\mathcal{M}$-subspace of dimension $n/2$. On the other hand, we show that permutations $\pi$ with linear structures give rise to Maiorana-McFarland bent functions that do not have this property. In this way, we contribute to the classification of Maiorana-McFarland bent functions, since the number of $\mathcal{M}$-subspaces is invariant under equivalence. Additionally, we give several generic methods of specifying permutations $\pi$ so that $f\in\mathcal{MM}$ admits a unique $\mathcal{M}$-subspace. Most notably, using the knowledge about $\mathcal{M}$-subspaces, we show that using the bent 4-concatenation of four suitably chosen Maiorana-McFarland bent functions, one can in a generic manner generate bent functions on $\mathbb{F}_2^{n}$ outside the completed Maiorana-McFarland class $\mathcal{MM}^\#$ for any even $n\geq 8$. Remarkably, with our construction methods it is possible to obtain inequivalent bent functions on $\mathbb{F}_2^8$ not stemming from two primary classes, the partial spread class $\mathcal{PS}$ and $\mathcal{MM}$. In this way, we contribute to a better understanding of the origin of bent functions in eight variables, since only a small fraction, of which size is about $2^{76}$, stems from $\mathcal{PS}$ and $\mathcal{MM}$, whereas the total number of bent functions on $\mathbb{F}_2^8$ is approximately $2^{106}$