An Analysis of Exports and Growth in Pakistan

The paper examines the export-led growth (ELG) paradigm for Pakistan, using data of the period from 1970-71 to 2003-04. The paper uses a number of analytical tools, including Unit Root Test, Phillips- Perron Tests, Co-integration Johansen Test, and the Granger Tests. The paper sets three hypotheses for testing the ELG paradigm for Pakistan; (a) whether GDP and exports are cointegrated, (b) whether exports Granger cause growth, and (c) whether exports Granger cause investment. The time series data on GDP growth, export growth and investment GDP ratio (proxy for capital formation), and the labour employed were used. The data were tested for stationarity using the Augmented Dickey-Fuller (ADF) test and Phillips-Perron test (1988), and then the relationship between GDP growth rate and the growth rate of other variables was determined using OLS with AR (1). The major finding of the present study is that growth rate of export, total investment, and labour employed have positively affected the GDP growth rate

Structural and decay properties of Z=132,138Z=132,138 superheavy nuclei

In this paper, we analyze the structural properties of $Z=132$ and $Z=138$ superheavy nuclei within the ambit of axially deformed relativistic mean-field framework with NL$3^{*}$ parametrization and calculate the total binding energies, radii, quadrupole deformation parameter, separation energies, density distributions. We also investigate the phenomenon of shape coexistence by performing the calculations for prolate, oblate and spherical configurations. For clear presentation of nucleon distributions, the two-dimensional contour representation of individual nucleon density and total matter density has been made. Further, a competition between possible decay modes such as $\alpha$-decay, $\beta$-decay and spontaneous fission of the isotopic chain of superheavy nuclei with $Z=132$ within the range 312 $\le$ A $\le$ 392 and 318 $\le$ A $\le$ 398 for $Z=138$ is systematically analyzed within self-consistent relativistic mean field model. From our analysis, we inferred that the $\alpha$-decay and spontaneous fission are the principal modes of decay in majority of the isotopes of superheavy nuclei under investigation apart from $\beta$ decay as dominant mode of decay in $^{318-322}138$ isotopes.Comment: 16 pages, 10 figures , 8 table

Theoretical studies on structural and decay properties of Z=119Z=119 superheavy nuclei

In this manuscript, we analyze the structural properties of $Z=119$ superheavy nuclei in the mass range of 284 $\le$ A $\le$ 375 within the framework of deformed relativistic mean field theory (RMF) and calculate the binding energy, radii, quadrupole deformation parameter, separation energies and density profile. Further, a competition between possible decay modes such as $\alpha-$decay, $\beta-$decay and spontaneous fission (SF) of the isotopic chain of $Z=119$ superheavy nuclei under study is systematically analyzed within self-consistent relativistic mean field model. Moreover, our analysis confirmed that $\alpha-$decay is restricted within the mass range 284 $\leq$ A $\leq$ 296 and thus being the dominant decay channel in this mass range. However, for the mass range 297 $\leq$ A $\leq$ 375 the nuclei are unable to survive fission and hence SF is the principal mode of decay for these isotopes. There is no possibility of $\beta-$decay for the considered isotopic chain. In addition, we forecasted the mode of decay $^{284-296}$119 as one $\alpha$ chain from $^{284}$119 and $^{296}$119, two consistent $\alpha$ chains from $^{285}$119 and $^{295}$119, three consistent $\alpha$ chains from $^{286}$119 and $^{294}$119, four consistent alpha chains from $^{287}$119, six consistent alpha chains from $^{288-293}$119. Also from our analysis we inferred that for the isotopes $^{264-266,269}$Bh both $\alpha$ decay and SF are equally competent and can decay via either of these two modes. Thus, such studies can be of great significance to the experimentalists in very near future for synthesizing $Z=119$ superheavy nuclei.Comment: 14 pages, 6 figures. arXiv admin note: text overlap with arXiv:1611.00232, arXiv:1704.0315

Mobile Computing in Physics Analysis - An Indicator for eScience

This paper presents the design and implementation of a Grid-enabled physics analysis environment for handheld and other resource-limited computing devices as one example of the use of mobile devices in eScience. Handheld devices offer great potential because they provide ubiquitous access to data and round-the-clock connectivity over wireless links. Our solution aims to provide users of handheld devices the capability to launch heavy computational tasks on computational and data Grids, monitor the jobs status during execution, and retrieve results after job completion. Users carry their jobs on their handheld devices in the form of executables (and associated libraries). Users can transparently view the status of their jobs and get back their outputs without having to know where they are being executed. In this way, our system is able to act as a high-throughput computing environment where devices ranging from powerful desktop machines to small handhelds can employ the power of the Grid. The results shown in this paper are readily applicable to the wider eScience community.Comment: 8 pages, 7 figures. Presented at the 3rd Int Conf on Mobile Computing & Ubiquitous Networking (ICMU06. London October 200

The Significance of Petroleum Bitumen in Ancient Egyptian Mummies

© 2016 The Author(s) Published by the Royal Society. All rights reserved. Mummification was practised in ancient Egypt for more than 3000 years, emerging from initial observations of buried bodies preserved by natural desiccation. The use of organic balms (and other funerary practices) was a later introduction necessitated by more humid burial environments, especially tombs. The dark colour of many mummies led to the assumption that petroleum bitumen (or natural asphalt) was ubiquitous in mummification; however, this has been questioned for more than 100 years. We test this by investigating 91 materials comprising balms, tissues and textiles from 39 mummies dating from ca 3200 BC to AD 395. Targeted petroleum bitumen biomarker (steranes and hopanes) analyses by gas chromatography-mass spectrometry selected ion monitoring (GC-MS SIM, m/z 217 and 191) showed no detectable bitumen use before the New Kingdom (ca 1550-1070 BC). However, bitumen was used in 50% of New Kingdom to Late Period mummies, rising to 87% of Ptolemaic/Roman Period mummies. Quantitative determinations using 14C analyses reveal that even at peak use balms were never more than 45% w/w bitumen. Critically, the dark colour of balms can be simulated by heating/ageing mixtures of fats, resins and beeswax known to be used in balms. The application of black/dark brown balms to bodies was deliberate after the New Kingdom reflecting changing funerary beliefs and shifts in religious ideology

Dampak Penerapan Teknologi Pengelolaan Tanaman Terpadu (Ptt) terhadap Pendapatan Petani Padi Sawah (Studi Kasus : Desa Pematang Setrak, Kec Teluk Mengkudu, Kabupaten Serdang Bedagai)

Penelitian ini bertujuan untuk mengidentifikasi tingkat adopsi Teknologi Pengelolaan Tanaman Terpadu (PTT) di lokasi penelitian. Tujuan lainnya adalah untuk menentukan adanya hubungan karakteristik sosial ekonomi petani (umur, tingkat pendidikan, lamanya berusahatani, luas lahan, jumlah tanggungan keluarga dan produksi) dengan keberhasilan tingkat adopsi Teknologi Pengelolaan Tanaman Terpadu (PTT) di lokasi penelitian. Disamping untuk mengetahui dampak penerapan Teknologi Pengelolaan Tanaman Terpadu (PTT) terhadap pendapatan petani. Metode penelitian yang digunakan adalah dengan menggunakan scoring, metode statistik Korelasi Rank Spearmen dan metode Uji Beda Rata-Rata (Compare Means) dengan menggunakan alat bantu SPSS 18. Penentuan daerah penelitian dilakukan secara purposive. Teknik pengambilan sampel dengan metode simple random sampling. Hasil penelitian menunjukkan bahwa 1) Tingkat adopsi Teknologi Pengelolaan Tanaman Terpadu (PTT) di Desa Pematang Setrak Kecamatan Teluk Mengkudu Kabupaten Serdang Bedagai sangat berhasil; 2) terdapat hubungan nyata karakteristik sosial ekonomi yaitu tingkat pendidikan dan jumlah tanggungan keluarga dengan keberhasilan tingkat adopsi Teknologi Pengelolaan Tanaman Terpadu (PTT), sedangkan umur, lamanya berusahatani, luas lahan, dan produksi tidak memiliki hubungan nyata dengan keberhasilan tingkat adopsi Teknologi Pengelolaan Tanaman Terpadu (PTT) dan 3) terdapat dampak penerapan Teknologi Pengelolaan Tanaman Terpadu (PTT) terhadap pendapatan petani

The Effect of Ownership Structure on Income Smoothing

Income smoothing is an earnings management action by raising or lowering earnings to make it look more stable. This was done by company management for reasons not achieving the company's targets. In financial statements, a stable company profit illustrates that the company had good business continuity.Explained in the concept of corporate governance, institutional ownership, government ownership, and managerial ownership were believed to be able to minimize the occurrence of income smoothing. Therefore, this research was conducted to determine the effect of institutional ownership, government ownership, and managerial ownership with profitability and leverage control variables on income smoothing both simultaneously and partially in BUMN companies listed on the Indonesia Stock Exchange in 2012 - 2017.The technique used to select samples was purposive sampling technique. In the process, 10 research samples were obtained with a period of 6 years, so that 60 sample units were obtained. Then, to carry out the analysis, the analytical method used logistic regression analysis with the software used SPSS 23.0.After the analysis of this study, the results stated that simultaneous institutional ownership, government ownership, and managerial ownership with profitability control variables and leverage had a significant influence on income smoothing. Furthermore, partially the results of this study stated that government ownership had a significant effect on the negative direction of income smoothing. While the other two independent variables, namely institutional ownership and managerial ownership variables did not have a significant effect on income smoothing

Methodologies and tools for OSS: current state of the practice

Over the years, the Open Source Software (OSS) development has matured and strengthened, building on some established methodologies and tools. An understanding of the current state of the practice, however, is still lacking. This paper presents the results of a survey of the OSS developer community with a view to gain insight of peer review, testing and release management practices, along with the current tool sets used for testing, debugging and, build and release management. Such an insight is important to appreciate the obstacles to overcome to introduce certification and more rigour into the development process. It is hoped that the results of this survey will initiate a useful discussion and allow the community to identify further process improvement opportunities for producing better quality software