Natural Regulation of Energy Flow in a Green Quantum Photocell

Manipulating the flow of energy in nanoscale and molecular photonic devices is of both fundamental interest and central importance for applications in light harvesting optoelectronics. Under erratic solar irradiance conditions, unregulated power fluctuations in a light harvesting photocell lead to inefficient energy storage in conventional solar cells and potentially fatal oxidative damage in photosynthesis. Here, we show that regulation against these fluctuations arises naturally within a two-channel quantum heat engine photocell, thus enabling the efficient conversion of varying incident solar spectrum at Earth's surface. Remarkably, absorption in the green portion of the spectrum is avoided, as it provides no inherent regulatory benefit. Our findings illuminate a quantum structural origin of regulation, provide a novel optoelectronic design strategy, and may elucidate the link between photoprotection in photosynthesis and the predominance of green plants on Earth.Comment: 17 pages, 4 figure

Universality of the single-particle spectra of cuprate superconductors

All the available data for the dispersion and linewidth of the single-particle spectra above the superconducting gap and the pseudogap in metallic cuprates for any doping has universal features. The linewidth is linear in energy below a scale $\omega_c$ and constant above. The cusp in the linewidth at $\omega_c$ mandates, due to causality, a "waterfall", i.e., a vertical feature in the dispersion. These features are predicted by a recent microscopic theory. We find that all data can be quantitatively fitted by the theory with a coupling constant $\lambda_0$ and an upper cutoff at $\omega_c$ which vary by less than 50% among the different cuprates and for varying dopings. The microscopic theory also gives these values to within factors of O(2).Comment: 4 pages, 4 figures; accepted by Phys. Rev. Let

Influence of Palm Sugar Water in the Native Chicken Performance

Palm sugar containing 66,18% sukrose is an additional source of energi quickly available to the chicken. A study to examine the effect of palm sugar in the native chicken performance was held in animal health training center, Cinagara-Bogor lasted from August until November 2012. This present experiment using 1274 native chicken that were kept starting DOC. Palm sugar concentrations given in the drinking water as much as one percent started to be given to the chcken when they were still DOC. After that, the palm sugar water was given continously intermittent interval by administering multivitamin. The control group was not given the palm sugar. Chicken aged 0 to 6 weeks were given palm sugar twice a day. After reaching over 6 weeks old, palm sugar water was only given onece a day. Result obtained showed that the administration of palm sugar water affected the increase in body weight gain, feed consumption and lower mortality as well. The result also showed that the FCR is lower than that of the control group until 6 weeks old

Perbandingan Pembagian Warisan untuk Janda Menurut Kitab Undang-undang Hukum Perdata dan Kompilasi Hukum Islam

Widow as heir there are many similarities and differences in system of Islamic law with Western legal system where people are less aware of the similarities and differences. Inheritance law provisions regarding inheritance for widows there are very significant differences between the provisions of the Civil Code and the laws of Islam. Based on the explanation and the above background, the authors are interested in the discussion raised in a scientific study entitled " THE COMPARISON OF LEGACY SHARING FOR THE WIDOW ACCORDING TO CIVIL LAW AND COMPILATION ISLAMIC LAW"Basically, this research aims to achieve a proper understanding of the problems formulated. More specifically, the purpose of the study can be described as follows: First, to determine the position of widows as heirs in inheritance according to the Civil Code and Islamic Legacy Law. Second, to determine the distribution of inheritance to widows based on the Civil Code and Islamic Legacy Law. Third, to determine similarities and differences in the law about the division of inheritance for widows according to the Civil Code and Islamic Legacy Law.. The conclusion is First, Equation Position Widow as heir based based on the Civil Code and is based on Islamic Legacy Law is the class of the priority to be heir, so it is not obstructed heir heirs other than by virtue. Second, the difference, in the Civil Code Widows who do not have children or descendants heir entitled to the entire inheritance. While in Islamic Inheritance Law Widow heir with his parents and brothers heir. The amount of the legacy of the Civil Code for Widow equated with the legitimate child of the head-by-head. While the magnitude of the inheritance to the widow in Islamic inheritance according Islamic Legacy Law sourced from Al Quran has been determined, the 1/4 or 1/8

Implementasi Migrasi Ipv4 Ke Ipv6

IPv4 yang digunakan di jaringan publik (internet) sudah habis, sehingga kebutuhan koneksi internet baru tidak dapat dilayani. Layanan baru, konten baru, domain name baru, server baru, router baru tidak dapat koneksi ke internet, kecuali menggunakan IPv6. Migrasi IPv4 ke IPv6 bukan hal yang mudah, pengetahuan baru tentang IPv6 perlu dipelajari, kondisi-kondisi yang akan dialami akibat Perubahan IP, mekanisme transisi, atau mekanisme routing perlu dipahami. Cara-cara konfigurasi IPv6 pada berbagai jenis perangkat, identifikasi hardware/software yang ada perlu dilakukan untuk menghindari kegagalan hardware/software bekerja

Association Between Parental Education, Occupation, Income, Language Activity, and Language Proficiency in Children

Background: Language proficiency should be mastered by children before school admision. The process of language development was affected by cognitive and neurologic maturity. Language proficiency determine communication foundation, social and academic interaction. Children with retardation in language proficiency may encounter problem in the social and academic relationship. This study investigated the association between parental education, occupation, income, language activity, and language proficiency in children.Subjects and Method: This was an analytic observational study with cross sectional design. This study was conducted in Gondangrejo sub-district, Karanganyar, Central Java. A total sample of 102 children aged 4 to 5 years were selected for this study. The dependent variable was language proficiency. The independent variables were parental education, occupation, income, and language activity. The data were collected by a set of questionnaire and analyzed by multiple logistic regression.Results: Parental education ≥ senior high school (OR= 2.95; 95% CI= 1.03 to 8.39; p= 0.043), employed parents (OR= 3.45; 95% CI= 1.27 to 9.39; p= 0.015), family income ≥ regional minimum wage (OR= 6.35; 95% CI= 2.02 to 19.93; p= 0.002), and intense language activity (OR= 4.32; 95% CI= 1.61 to 11.51; p= 0.003) were associated with better language proficiency.Conclusion: Parental education ≥ senior high school, employed parents, family income ≥ regional minimum wage, and intense language activity are associated with better language proficiency.Keywords: parental education, occupation, language activity, language proficiency, childrenCorrespondence: Hafidz Triantoro Aji Pratomo. School of Health Polytechnics, Poltekkes Surakarta. Email: [email protected] Journal of Medicine (2016), 1(3): 152-159https://doi.org/10.26911/theijmed.2016.01.03.0

Urahan Tenaga Kerja pada USAhatani Padi di Desa Gumelar Kecamatan Balung Kabupaten Jember

Kurangnya tenaga kerja pertanian pada USAhatani padi di Desa Gumelar Kecamatan Balung diakibatkan oleh rendahnya upah yang diterima oleh pekerja. Penelitian ini bertujuan untuk mengetahui : (1) model kelembagaan penggunaan upah tenaga kerja pada USAhatani padi; (2) curahan tenaga kerja dalam keluarga dan luar keluarga. Metode penelitian adalah deskriptif komparasi. Data diperoleh melalui wawancara dari petani terpilih berdasarkan Disproportionate Stratified Random Sampling. Metode analisis data yang digunakan adalah deskriptif kuantitatif dan t-test dengan sampel independent/two tail. Hasil analisis menunjukkan kelembagaan upah yang digunakan petani di daerah penelitian adalah : upah borongan, harian dan kedokan. Upah borongan digunakan pada kegiatan pengolahan tanah, penanaman dan kegiatan panen yang dilakukan oleh pendores. Upah harian digunakan pada kegiatan pencabutan persemaian dan panen yang dilakukan oleh pengarit. Upah kedokan digunakan petani pada kegiatan persemaian, penyulaman, penyiangan, pengairan, pemupukan, pemberantasan hama dan kegiatan panen yang dilakukan oleh pengedok. Curahan tenaga kerja luar keluarga lebih besar daripada curahan tenaga kerja dalam keluarga yaitu tenaga kerja luar keluarga sebesar 64,47 HKP/ha dan tenaga kerja dalam keluarga sebesar 13,68 HKP/ha

Development of a Small Scale Okro Slicing Machine

The technique of slicing Okro using kitchen knife often exposes users to the danger of knife cut and the output of the technique has been found to be low due to the drudgery involved in the process. It was in recognition of the need to reduce drudgery, injury and associated rigors to the user and to enhance quality, hygiene and efficiency in Okro processing that the research of developing a suitable Okro slicing machine was initiated. A simple motorized device was developed for slicing okra using locally available materials which include: bearings, shaft, pulleys, electric motor, cutting blade, rail, bolts and nuts. The slicing mechanism was based on the high shear stress that is generated when a blade edge is brought into contact with fibrous material causing the blade to move in rotary motion and to the direction of the applied force. After coupling and testing the machine, results obtained showed that it takes 3 seconds to slice one Okro using machine while in the case of manual slicing, it takes 8.22 seconds. The device has a slicing efficiency of 66.67%.  The machine has shown to enhance processing of okra in small scale industry application. The machine therefore is of great importance to the industries within the country and beyond where preservation of Okro in sliced and dried form is important