473 research outputs found

    Quantum Computing in Molecular Magnets

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    Shor and Grover demonstrated that a quantum computer can outperform any classical computer in factoring numbers and in searching a database by exploiting the parallelism of quantum mechanics. Whereas Shor's algorithm requires both superposition and entanglement of a many-particle system, the superposition of single-particle quantum states is sufficient for Grover's algorithm. Recently, the latter has been successfully implemented using Rydberg atoms. Here we propose an implementation of Grover's algorithm that uses molecular magnets, which are solid-state systems with a large spin; their spin eigenstates make them natural candidates for single-particle systems. We show theoretically that molecular magnets can be used to build dense and efficient memory devices based on the Grover algorithm. In particular, one single crystal can serve as a storage unit of a dynamic random access memory device. Fast electron spin resonance pulses can be used to decode and read out stored numbers of up to 10^5, with access times as short as 10^{-10} seconds. We show that our proposal should be feasible using the molecular magnets Fe8 and Mn12.Comment: 13 pages, 2 figures, PDF, version published in Nature, typos correcte

    Alat Pelacak dan Pengaman Kendaraan Bermotor dengan Kendali Pesan Singkat Berbasis Arduino dan SIM900

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    Tindak kejahatan pencurian kendaraan bermotor, khususnya roda dua termasuk dalam kategori kasus yang tinggi ditangan kepolisian, jumlah kasus juga meningkat di masa pandemi covid-19 ini. Kendaraan bermotor roda dua sendiri sangat rentan dicuri dengan merusak lubang kunci motor. Oleh sebab itu, dilakukanlah penelitian ini yang bertujuan untuk merancang dan membangun alat pelacak dan pengaman kendaraan bermotor yang mudah dan murah. Alat yang dibuat berbasis mikrokontroler Arduino UNO dengan menggunakan modul SIM900 untuk komunikasi dengan pengguna. Sehingga, apabila terjadi pencurian, pengguna cukup mengirimkan SMS ke alat untuk mengaktifkan fitur GPS, alarm dan pemutusan daya listrik di kendaraan

    ANALISIS PENGARUH PERILAKU PEDAGANG TERHADAP INFLASI

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    The purpose of this research to determine how big the influence of traders behavior against rising inflation.This research used quantitative research approachusing multiple linear regression analysis techniquesupported by model test and statistical test assistedby Eviews software version 8.The results of research conducted by alpha 5%,the authorconcluded that the results of multiple linear regression analysisshowed simultaneously the variables of overstocking of goods, outstanding issues, scarcity of goods and selling price increases influence against inflation.This research showed thatoverstocking of goods, outstanding issues, scarcity of goods and selling price increasessimultaneouslyaffecting inflation rate in Medan. Overstocking of goods has positive influenceagainst the inflationamounted to 0.039916%. Outstanding issues has positive influenceagainst the rising inflation amounted to6.21594%. Scarcity of goodshas positive influenceagainst the inflationamounted to0.005596%. While selling price increaseshas positive influenceagainst the inflationamounted to0.058903%

    Multipurpose High Frequency Electron Spin Resonance Spectrometer for Condensed Matter Research

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    We describe a quasi-optical multifrequency ESR spectrometer operating in the 75-225 GHz range and optimized at 210 GHz for general use in condensed matter physics, chemistry and biology. The quasi-optical bridge detects the change of mm wave polarization at the ESR. A controllable reference arm maintains a mm wave bias at the detector. The attained sensitivity of 2x10^10 spin/G/(Hz)1/2, measured on a dilute Mn:MgO sample in a non-resonant probe head at 222.4 GHz and 300 K, is comparable to commercial high sensitive X band spectrometers. The spectrometer has a Fabry-Perot resonator based probe head to measure aqueous solutions, and a probe head to measure magnetic field angular dependence of single crystals. The spectrometer is robust and easy to use and may be operated by undergraduate students. Its performance is demonstrated by examples from various fields of condensed matter physics.Comment: submitted to Journal of Magnetic Resonanc

    Implementation of Tolerance and Democracy Values in Islamic Religious Education

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    In recent years, violence based on religious issues has quickly spread to various levels of society. The peacefulness of people's lives is greatly disturbed by the extraordinary vulnerability caused by these religious conditions. If the religious ego is touched in the slightest, the reaction will be very big and excessive. Currently, this reaction almost always takes the form of violence, which creates anxiety and is related to relations between religious communities in society. The aim of this research is to find, describe, and analyze the values of tolerance and democracy in Islamic religious education. This research uses a qualitative approach, using a type of library research where data collection uses documentation methods from several relevant sources. The results of this research show that (1) the implementation of tolerance values in Islamic religious education requires a fair and non-discriminatory learning process by upholding human rights, religious values, cultural values, and national diversity so that students become worthy human beings. appreciate differences, be proud of oneself, and be aware of a diverse and multicultural environment. (2) Implementation of democratic values in Islamic religious education, namely by transforming and developing Islamic religious education learning, which leads to the internalization of democratic values including the values of justice, freedom, responsibility, equality, deliberation, and diversity, so that students become good individuals. in the family, community, country, and environment

    Hubungan Konsumsi Harian terhadap Tingkat Kebugaran Jasmani pada Siswa SMAN 1 Dukun Kabupaten Gresik

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    Pada Konsumsi harian merupakan faktor yang sangat penting untuk menunjang kebugaran jasmani. Tujuan penelitian ini untuk mengetahui hubungan konsumsi harian dengan tingkat kebugaran jasmani siswa SMAN 1 Dukun Kabupaten Gresik. Penelitian korelasional kuantitatif dengan metode tes pengukuran dan survei. Populasi seluruh siswa kelas XI, sampel yang dipilih dengan cara random sampling yang akan dipilih 2 kelas dengan total 65 sampel. Instrumen penelitian menggunakan tes TKPN untuk mengukur tingkat kebugaran jasmani dan kuesioner recall 24 jam untuk mengetahui konsumsi harian siswa. Analisis data menggunakan uji deskripsi, uji normalitas dan uji korelasi. Hasil uji korelasi signifikan sebesar 0,000 yang berarti lebih kecil dari 0,05 (p<0,05), maka Ha diterima. Dapat diambil kesimpulan bahwa terdapat hubungan yang signifikan antara variabel konsumsi harian dengan tingkat kebugaran jasmani. Angka koefisien korelasi sebesar 0,527 artinya tingkat kekuatan hubungan antara variabel kunsumsi harian terhadap tingkat kebugaran jasmani memiliki hubungan yang kuat

    The Role of Husband and Wife Relations in Family of Qodiriyah wa Naqsyabandiyah Tarekat in Depok City (Study of Social Construction and Islamic Family Law)

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    This study aims to examine the role and relationship of husband and wife in the family of Qodiriyah wa Naqsyabandiyah (TQN) congregation in Depok City, and to analyze it from the perspective of social construction and Islamic Family Law (HKI). The main focus of this study is to explore how the spiritual values ​​of the tarekat influence the division of roles, communication, and harmony in the household, and how these are in line with or contradict the principles in HKI. The method used in this study is a qualitative approach with a field research type. Data were collected through in-depth interviews, participatory observation, and documentation of several TQN congregation families in Depok City. The analysis was conducted descriptively-critically through the perspective of Peter L. Berger's social construction theory and the norms of Islamic jurisprudence in Islamic Family Law. The results of the study indicate that the relationship between husband and wife in the TQN congregation family tends to be formed by collective spiritual values ​​that emphasize Sufism, obedience, and inner equality. The husband is positioned as a spiritual leader as well as a moral role model, while the wife has a central role in maintaining household harmony through a spiritual approach. This practice shows a synthesis between the values ​​of the tarekat and the principles of IPR, such as deliberation, justice, and shared responsibility. The conclusion of this study is that the tarekat is not only an individual's spiritual path, but also forms a harmonious and religious family relationship structure, which is relevant to the values ​​of Islamic Family Law. This finding indicates that the spirituality of the tarekat can be a source of renewal in the approach to building a sakinah family in urban society

    Forensik Mobile pada Layanan Media Sosial LinkedIn

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    The research explores mobile forensic on LinkedIn social media. Forensic mobile finds digital evidence of job hoax cases in LinkedIn, investigation using the NIST (National Institute of Standard and Technology) method. Data collection techniques using Andriller tools in investigations. Data examination using tools Root Browser, Autopsy in the forensic process. data analysis using tools MOBILedit in the forensic process. The investigation found digital evidence of log activity, a status update on LinkedIn. Other results found in the investigation are 17 WiFi password, 117 download history, 263 phone calls, 1 file deleted, 1 file hidden, and 1 file raised, the research has reached the expected target

    The Role of Husband and Wife Relations in Family of Qodiriyah wa Naqsyabandiyah Tarekat in Depok City (Study of Social Construction and Islamic Family Law)

    Get PDF
    This study aims to examine the role and relationship of husband and wife in the family of Qodiriyah wa Naqsyabandiyah (TQN) congregation in Depok City, and to analyze it from the perspective of social construction and Islamic Family Law (HKI). The main focus of this study is to explore how the spiritual values ​​of the tarekat influence the division of roles, communication, and harmony in the household, and how these are in line with or contradict the principles in HKI. The method used in this study is a qualitative approach with a field research type. Data were collected through in-depth interviews, participatory observation, and documentation of several TQN congregation families in Depok City. The analysis was conducted descriptively-critically through the perspective of Peter L. Berger's social construction theory and the norms of Islamic jurisprudence in Islamic Family Law. The results of the study indicate that the relationship between husband and wife in the TQN congregation family tends to be formed by collective spiritual values ​​that emphasize Sufism, obedience, and inner equality. The husband is positioned as a spiritual leader as well as a moral role model, while the wife has a central role in maintaining household harmony through a spiritual approach. This practice shows a synthesis between the values ​​of the tarekat and the principles of IPR, such as deliberation, justice, and shared responsibility. The conclusion of this study is that the tarekat is not only an individual's spiritual path, but also forms a harmonious and religious family relationship structure, which is relevant to the values ​​of Islamic Family Law. This finding indicates that the spirituality of the tarekat can be a source of renewal in the approach to building a sakinah family in urban society

    AGAMA DALAM PERFEKTIF MASYARAKAT MADANI

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    Religion is often considered to be static because they contain dogmatic doctrines and techings tend to invute discourse context towarrds worldly.as a result lose the historical context of religion, social and culture a society that in fct as adherents. Religion is understood that such criticism form various circles of scientists, philosophers and sociologists. Society is defined by a collection of many small or large individuals bound by a unit , customs, rites or typical law, and live togheter. There are few words in the qur’an using to  designate or set of human society. In modern society , individual positions member though still influenced b the family, but rather is determined by the values of the individual
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