PART-TIME FARMING: PRODUCTIVITY AND SOME IMPLICATIONS OF OFF-FARM WORK BY FARMERS

Labor and Human Capital,

Generating Converging Bounds to the (Complex) Discrete States of the P2+iX3+iαXP^2 + iX^3 + i\alpha X Hamiltonian

The Eigenvalue Moment Method (EMM), Handy (2001), Handy and Wang (2001)) is applied to the $H_\alpha \equiv P^2 + iX^3 + i\alpha X$ Hamiltonian, enabling the algebraic/numerical generation of converging bounds to the complex energies of the $L^2$ states, as argued (through asymptotic methods) by Delabaere and Trinh (J. Phys. A: Math. Gen. {\bf 33} 8771 (2000)).Comment: Submitted to J. Phys.

Benchmark full configuration-interaction calculations on HF and NH2

Full configuration-interaction (FCI) calculations are performed at selected geometries for the 1-sigma(+) state of HF and the 2-B(1) and 2-A(1) states of NH2 using both DZ and DZP gaussian basis sets. Higher excitations become more important when the bonds are stretched and the self-consistent field (SCF) reference becomes a poorer zeroth-order description of the wave function. The complete active space SCF - multireference configuration-interaction (CASSCF-MRCI) procedure gives excellent agreement with the FCI potentials, especially when corrected with a multi-reference analog of the Davidson correction

Eigenvalues of PT-symmetric oscillators with polynomial potentials

We study the eigenvalue problem $-u^{\prime\prime}(z)-[(iz)^m+P_{m-1}(iz)]u(z)=\lambda u(z)$ with the boundary conditions that $u(z)$ decays to zero as $z$ tends to infinity along the rays $\arg z=-\frac{\pi}{2}\pm \frac{2\pi}{m+2}$, where $P_{m-1}(z)=a_1 z^{m-1}+a_2 z^{m-2}+...+a_{m-1} z$ is a polynomial and integers $m\geq 3$. We provide an asymptotic expansion of the eigenvalues $\lambda_n$ as $n\to+\infty$, and prove that for each {\it real} polynomial $P_{m-1}$, the eigenvalues are all real and positive, with only finitely many exceptions.Comment: 23 pages, 1 figure. v2: equation (14) as well as a few subsequent equations has been changed. v3: typos correcte

Perancangan Sistem Informasi Laboratorium Komputer pada Program Studi D-iii Pmik Poltekkes Kemenkes Malang

Information Technology is inevitably beneficial for companies, institutions, or organizations to help them in completing the tasks effectively. It also could facilitate them in making a decision. Recently, Computer Laboratory Administration of PMIK State Health Polytechnic of Malang has been done manually. As a result, it has a lesser effectiveness and optimization in assisting and facilitating practical training in Computer Laboratory PMIK. To enhance the performance in terms of students\u27 services, it requires a computerized system to resolve the existing problems related to the services within the Computer Laboratory. The development of this system used a Waterfall method and supported by Power designer6 software and PHP Admin MySql 5.3.2 database. This information system will handle several processes, including students and lecturer\u27s registration, laboratory\u27s activity report; practical training score generating, and lecturers\u27 activity in the laboratory report. This system aim ate enhancing the effectiveness and efficiency of services to elevate the quality of services for the students and improve the performance of the lecturers. Pemanfaatan teknologi informasi sangat berguna bagi Perusahaan, instansi maupun organisasi dalam menyelesaikan tugas-tugasnya secara efektif dan efisien serta mempermudah dalam pengambilan keputusan. Saat ini pelayanan administrasi laboratorium komputer PMIK Poltekkes Kemenkes Malang masih dilakukan secara manual sehingga kurang efektif dan kurang optimal dalam melayani kegiatan pratikum di laboratorium komputer PMIK. Untuk meningkatkan kinerja dalam hal pelayanan terhadap mahasiswa di laboratorium komputer PMIK membutuhkan sebuah sistem berbasis komputerisasi guna mengatasi masalah-masalah yang ada. Metode yang digunakan untuk merancang sistem ini adalah metode Waterfall dan didukung dengan software Power designer 6 dan database PHP Admin MySql 5.3.2. Sistem informasi ini akan menanggani beberapa proses, seperti registrasi dosen dan mahasiswa, pencatatan kegiatan laboratorium, pembuatan nilai pratikum, dan pembuatan laporan kegiatan dosen di laboratorium secara efektif dan efisien sehingga dapat meningkatkan mutu pelayanan terhadap mahasiswa dan meningkatkan kinerja dosen

Basal rot of narcissus : understanding pathogenicity in fusarium oxysporum f. sp. narcissi

Fusarium oxysporum is a globally distributed soilborne fungal pathogen causing root rots, bulb rots, crown rots and vascular wilts on a range of horticultural plants. Pathogenic F. oxysporum isolates are highly host specific and are classified as formae speciales. Narcissus is an important ornamental crop and both the quality and yield of flowers and bulbs can be severely affected by a basal rot caused by F. oxysporum f. sp. narcissi (FON); 154 Fusarium isolates were obtained from different locations and Narcissus cultivars in the United Kingdom, representing a valuable resource. A subset of 30 F. oxysporum isolates were all found to be pathogenic and were therefore identified as FON. Molecular characterisation of isolates through sequencing of three housekeeping genes, suggested a monophyletic origin with little divergence. PCR detection of 14 Secreted in Xylem (SIX) genes, previously shown to be associated with pathogenicity in other F. oxysporum f. spp., revealed different complements of SIX7, SIX9, SIX10, SIX12 and SIX13 within FON isolates which may suggest a race structure. SIX gene sequences were unique to FON and SIX10 was present in all isolates, allowing for molecular identification of FON for the first time. The genome of a highly pathogenic isolate was sequenced and lineage specific (LS) regions identified which harboured putative effectors including the SIX genes. Real-time RT-PCR, showed that SIX genes and selected putative effectors were expressed in planta with many significantly upregulated during infection. This is the first study to characterise molecular variation in FON and provide an analysis of the FON genome. Identification of expressed genes potentially associated with virulence provides the basis for future functional studies and new targets for molecular diagnostics

The mechanics of correlated variability in segregated cortical excitatory subnetworks

Understanding the genesis of shared trial-to-trial variability in neuronal population activity within the sensory cortex is critical to uncovering the biological basis of information processing in the brain. Shared variability is often a reflection of the structure of cortical connectivity since it likely arises, in part, from local circuit inputs. A series of experiments from segregated networks of (excitatory) pyramidal neurons in the mouse primary visual cortex challenge this view. Specifically, the across-network correlations were found to be larger than predicted given the known weak cross-network connectivity. We aim to uncover the circuit mechanisms responsible for these enhanced correlations through biologically motivated cortical circuit models. Our central finding is that coupling each excitatory subpopulation with a specific inhibitory subpopulation provides the most robust network-intrinsic solution in shaping these enhanced correlations. This result argues for the existence of excitatory–inhibitory functional assemblies in early sensory areas which mirror not just response properties but also connectivity between pyramidal cells. Furthermore, our findings provide theoretical support for recent experimental observations showing that cortical inhibition forms structural and functional subnetworks with excitatory cells, in contrast to the classical view that inhibition is a nonspecific blanket suppression of local excitation

Sistem SCADA Berbasis Internet untuk Model Otomasi Bangunan

Seiring dengan perkembangan teknologi, sistem otomasi saat ini juga dapat diaplikasikan pada bangunan yang dirancang serba otomatis (Building Automation System). PLC saat ini juga dapat melakukan komunikasi baik dengan PC maupun sesama PLC melalui jaringan internet (Industrial Ethernet). Dengan menggunakan jaringan internet, melakukan konfigurasi, pemrograman ulang dan mendiagnosa kesalahan dapat dilakukan dengan lebih mudah, cepat dan praktis. Selain itu, pemantauan dan pengontrolan PLC melalui sistem SCADA menggunakan jaringan internet juga dapat dilakukan. Tujuan dari tugas akhir ini adalah mendesain dan mengkonfigurasi PLC Siemens S7-200 beserta modul CP 243-1 agar dapat diintegrasikan dan diaplikasikan untuk otomasi pada model bangunan yang dapat mengontrol suhu ruangan, penerangan/lampu, dan keamanan model bangunan. Pengujian komunikasi antara PC dengan PLC, PLC dengan PLC serta pengiriman pesan informasi e-mail melalui jaringan internet juga dilakukan. Sebagai hasilnya, PLC Siemens S7-200 beserta modul CP 243-1 dapat digunakan untuk sistem otomasi pada model bangunan, dapat melakukan komunikasi antara PC dengan PLC, PLC dengan PLC dalam waktu kurang dari 1 detik baik untuk jaringan lokal maupun antar jaringan. Sistem tersebut juga dapat melakukan pengiriman pesan informasi melalui e-mail

Readers\u27 Speakout

Dear Editors: The article in the Summer 1980 Women\u27s Studies Newsletter (vol. 8, no. 3), Building Coalitions between Women\u27s Studies and Black Studies: What Are the Realities?, by Ann Cathey Carver, is to my mind excellent. The understanding by this professor of the very real social realities that make for problems between Women\u27s Studies and Black Studies—and between Black and white women—reflects a tremendous sensitivity which has obviously grown out of extended acquaintance with the Black experience. As a Black woman, concerned with both racism and sexism in the society, I think such perceptive analysis is invaluable. I hope that this piece will be read and understood by many, many others. On such a basis, it is possible to develop strong coalitions, stronger interrelationships and trust, and more intimate one-to-one relationships between faculty and students of both programs and between Black and white women