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All Journal HAYATI Journal of Biosciences Electronic Journal of Graph Theory and Applications (EJGTA) Jurnal Matematika & Sains Journal of Mathematical and Fundamental Sciences Indonesian Journal of Biotechnology Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) BIOPROSPEK
Pudji Astuti
Algebra Research Group, Faculty Of Mathematics And Natural Sciences Institut Teknologi Bandung
Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Physics Veterinary

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Properties of Cohereditary Comodule Hanni Garminia; Pudji Astuti; Irawati Irawati
Jurnal Matematika & Sains Vol 12, No 2 (2007)
Publisher : Institut Teknologi Bandung

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Abstract

Let R be a commutative ring and C be an R-coalgebra which, as an R-module, is locally projective. This article describes some properties of a cohereditary C-comodule. The properties are derived by exploiting the closed connection between the C*-comodule category and the full subcategory of the C*-module category consisting of all C*-subgenerated C*-modules, where C* is the dual algebra of C.
Struktur Modul Hasil Bagi dari Modul Dedekind Hanni Garminia; Pudji Astuti; Irawati Irawati
Jurnal Matematika & Sains Vol 13, No 4 (2008)
Publisher : Institut Teknologi Bandung

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Abstract

It is well known that the quotient ring of a Dedekind prime ring is a Dedekind prime ring. In this article we generalize the property of Dedekind ring to a module over a commutative ring. Particularly we show that the quotient module of a Dedekind module is a Dedekind module.
Pengaruh Gangguan pada Perubahan Prioritas dan Indeks Konsistensi Matriks Perbandingan Berpasangan dalam Analytical Hierarchy Process Hanni Garminia; Moh. Hafiyusholeh; Pudji Astuti
Jurnal Matematika & Sains Vol 15, No 3 (2010)
Publisher : Institut Teknologi Bandung

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Abstract

A pairwise comparison matrix (PCM) is a matrix arising in Analytical Hierarchy Process (AHP). The application of the AHP as a decision problem tool gives rise to pairwise comparison matrices (PCM). In this work we investigate sufficient conditions on the disturbance which results in reversal of the rank order of the decision alternatives while the PCM  remains consistent.
Karakterisasi Dekomposisi Modul yang Dibangun secara Hingga atas Daerah Valuasi Mahanani, Dwi Mifta; Waluyo, Pudji Astuti
Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai-Nilai Islami) Vol 1 No 1 (2017): Prosiding SI MaNIs (Seminar Nasional Integrasi Matematika dan Nilai Islami )
Publisher : Mathematics Department

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Abstract

Tulisan ini membahas tentang karakterisasi dekomposisi modul yang dibangun secara hingga atas daerah valuasi. Ada beberapa konsep yang diperlukan untuk mengetahui kapan modul yang dibangun secara hingga dapat didekomposisikan. Konsep-konsep tersebut mengenai deret komposisi dan dimensi Goldie. Oleh karena itu, akan dibahas pula deret komposisi dan dimensi Goldie dari modul yang dibangun secara hingga atas daerah valuasi. Akan ditunjukkan bahwa modul yang dibangun secara hingga atas daerah valuasi dapat didekomposisikan menjadi tambah langsung submodul-submodul siklis jika dan hanya jika panjang deret komposisi $RD$nya sama dengan dimensi Goldienya.
The Potency of Anadara nodifera Shell as Natural Testosterone Booster for Male Canary (Seriunus canaria) Pudji Astuti; Muhammad Naufal Prayitno Putra; Muhammad Fariz Ash Shiddiq; Rizki Fitrawan Yuneldi; Claude Mona Airin; Sarmin Sarmin
HAYATI Journal of Biosciences Vol. 29 No. 1 (2022): January 2022
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.29.1.107-113

Abstract

Anadara clam shell contains high Zinc. This microelement is recognised as acting natural aromatase blocker (NAB) that capable of boosting testosterone level. The aim of this study was to evaluates the testosterone level of Canaries following Anadara nodifera administration. Adult male Canaries (n = 27) were group into 3 with 9 repetition of each i.e T0 [control, was given by Carboxymethyl Cellulose Sodium (Na-CMC)], T1 (Zinc Sulphate 0.013 mg/30 g BW), and T2 (NAB 0.3 mg/30 g BW). The T2 treatment was NAB or shell powder of Anadara nodifera which was diluted 1:1 in Na-CMC. The birds were treated orally for 21 days. The complete blood cell count was performed in a haemo analyser except the erythrocyte was calculated manually in the Improved Neubauer counting chamber. Testosterone level was measured in ELISA. Subsequently gen CYP19 aromatase in syrinx, brain and testis were identified employing IHC and descriptively analysed. The result indicated significant elevated level of testosterone (p<0.05). The expression of CYP19 aromatase receptor was depressed in syrinx, brain and testis. However there was no significant changes on the blood profile (p>0.05). To conclude, Anadara nodifera at 0.3 mg/30 g BW was capable of acting as NAB to promote testosterone level. This was confirmed by the reduction of CYP19 aromatase gene receptors in syrinx, brain and testis. However NAB treatment was not significantly affecting routine blood profile.
The matrix Jacobson graph of finite commutative rings Siti Humaira; Pudji Astuti; Intan Muchtadi-Alamsyah; Ahmad Erfanian
Electronic Journal of Graph Theory and Applications (EJGTA) Vol 10, No 1 (2022): Electronic Journal of Graph Theory and Applications
Publisher : GTA Research Group, Univ. Newcastle, Indonesian Combinatorics Society and ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/ejgta.2022.10.1.12

Abstract

The notion of the matrix Jacobson graph was introduced in 2019. Let R be a commutative ring and J(R) be the Jacobson radical of ring R. The matrix Jacobson graph of ring R size m × n, denoted ????(R)m × n, is defined as a graph where the vertex set is Rm × n ∖ J(R)m × n such that two distinct vertices A, B are adjacent if and only if 1 − det(AtB) is not a unit in ring R. Here we obtain some graph theoretical properties of ????(R)m × n including its connectivity, planarity and perfectness.
The effect of methanol extract of soybean seeds (Glycine max L.Merr.) on the histology and immunohistochemical distribution of Cyp19 aromatase in rat testis (Rattus norvegicus L.) Retno Aryani; Sukarti Moeljopawiro; Laurentius Hartanto Nugroho; Pudji Astuti
Indonesian Journal of Biotechnology Vol 20, No 2 (2015)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (839.696 KB) | DOI: 10.22146/ijbiotech.24199

Abstract

Soybean (Glycine max L. Merr.) contains phytoestrogens that have a chemical structure resembling estrogen in the body. They function like estrogen and antiestrogen, affecting the metabolism of sex steroid hormones. This research aimed to determine the effect of the methanol extract of soybean on the histological structure and distribution of immunohistochemical Cyp19 aromatase in rat testis . Twenty males of Wistar rats were divided into 4 groups of 5. The frst group was the control and the second to fourth groups were given soybean extract (250 mg/kg of body weight, 500 mg/kg of body weight) and genistein (0.3 mg/kg of body weight), respectively, for 52 days. The results of this study indicate that the effect of methanol extract from soybean caused weight gain, and the weight of the testis and epididymis decreased. In addition, the histological results showed that seminiferous tubules were reduced in size, became irregular, were separated by a wide interstitium, and spermatogenic cells were decreased. The immunohistochemical results showed that the expression of Cyp19 aromatase in the rats decreased both in spermatocyte cells and Leydig cells. It could be concluded that the methanol extract of soybean induced testicular damage and reduced Cyp19 aromatase expression in rat testis.
On Eigenvalues and Eigenvectors of Perturbed Pairwise Comparison Matrices Pudji Astuti; Agah D. Garnadi
Journal of Mathematical and Fundamental Sciences Vol. 41 No. 2 (2009)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/itbj.sci.2009.41.2.1

Abstract

This work studied eigenvalues and eigenvectors of a class of perturbed pairwise comparison matrices (PCMs). This type of matrices arises from Analytical Hierarchical Process with inconsistency comparison. By employing some nice structures of the PCMs, we show that the object dimension of size n â‰¥ 3 can be reduced into a case of size 3, hence simplify the studies.
Behavior for Time Invariant Finite Dimensional Discrete Linear Systems Sisilia Sylviani; Hanni Garminia; Pudji Astuti
Journal of Mathematical and Fundamental Sciences Vol. 45 No. 1 (2013)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2013.45.1.4

Abstract

The behavior of a dynamical system, in Willems's point of view, is the set of all trajectories of the system. Fuhrmann defines a behavior as a linear, shift invariant, and complete subspace of z-1Fm[[z-1]], the vector space consisting of power series in z-1 with coefficients in signal space W=Fm. In this paper we show that the behavior of a finite dimensional, time invariant discrete linear system in Willems's setting is also a behavior according to Fuhrmann's.
Riesz Representation Theorem on Bilinear Spaces of Truncated Laurent Series Sabarinsyah Sabarinsyah; Hanni Garminia; Pudji Astuti
Journal of Mathematical and Fundamental Sciences Vol. 49 No. 1 (2017)
Publisher : Institute for Research and Community Services (LPPM) ITB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.math.fund.sci.2017.49.1.3

Abstract

In this study a generalization of the Riesz representation theorem on non-degenerate bilinear spaces, particularly on spaces of truncated Laurent series, was developed. It was shown that any linear functional on a non-degenerate bilinear space is representable by a unique element of the space if and only if its kernel is closed. Moreover an explicit equivalent condition can be identified for the closedness property of the kernel when the bilinear space is a space of truncated Laurent series.
Co-Authors Agah D. Garnadi Ahmad Erfanian Claude Mona Airin Dwi Mifta Mahanani, Dwi Mifta Hanni Garminia Intan Muchtadi-Alamsyah Irawati Irawati L. Hartanto Nugroho Moh. Hafiyusholeh Muhammad Fariz Ash Shiddiq Muhammad Naufal Prayitno Putra Retno Aryani Rizki Fitrawan Yuneldi Sabarinsyah, Sabarinsyah Sarmin Sarmin Sisilia Sylviani Siti Humaira Soekarti Moeljopawiro Sukarti Moeljopawiro