Experimental study of paraffin wax potential as a physical modelling material for local environment

An experimental study on paraffin wax was done to investigate its potential as modelling material and observing the effect of local environment thermal parameter. Testing and analysis done using cromatographer, differential calorimeter scanner, instron strength analyzer, durometer and laboratory experimental equipment have given us the opportunity to clarify certain elements in understanding the wax characteristics. Wax, through this experiment, have been proven viable as a modelling material. The surface finish is found to be better than Industrial Design (ID) clay and stable for the local environment as long as it is not exposed to direct heat source such as sunlight

Quantum Phase Transition from a Spin-liquid State to a Spin-glass State in the Quasi-1D Spin-1 System Sr1-xCaxNi2V2O8

We report a quantum phase transition from a spin-liquid state to a spin-glass state in the quasi-one dimensional (1D) spin-1 system Sr1-xCaxNi2V2O8, induced by a small amount of Ca-substitution at Sr site. The ground state of the parent compound (x = 0) is found to be a spin-liquid type with a finite energy gap of 26.6 K between singlet ground state and triplet excited state. Both dc-magnetization and ac-susceptibility studies on the highest Ca-substituted compound (x = 0.05) indicate a spin-glass type magnetic ground state. With increasing Ca-concentration, the spin-glass ordering temperature increases from 4.5 K (for the x = 0.015 compound) to 6.25 K (for the x = 0.05 compound). The observed results are discussed in the light of the earlier experimental reports and the theoretical predictions for a quasi-1D spin-1 system.Comment: 26 pages, 8 figures, 3 table

Coral spawning information

Information on reproduction in reef corals is presented. An understanding of its reproductive behaviour is an important factor in helping to preserve the coral reef ecosystems

Glyphosate reduced seed and leaf concentrations of calcium, manganese, magnesium, and iron in non-glyphosate resistant soybean

Greenhouse experiments were conducted to study the effects of glyphosate drift on plant growth and concentrations of mineral nutrients in leaves and seeds of non-glyphosate resistant soybean plants (Glycine max, L.). Glyphosate was sprayed on plant shoots at increasing rates between 0.06 and 1.2% of the recommended application rate forweed control. In an experiment with 3-week-old plants, increasing application of glyphosate on shoots significantly reduced chlorophyll concentration of the young leaves and shoots dry weight, particularly the young parts of plants. Concentration of shikimate due to increasing glyphosate rates was nearly 2-fold for older leaves and 16-fold for younger leaves compared to the control plants without glyphosate spray. Among the mineral nutrients analyzed, the leaf concentrations of potassium (K), phosphorus (P), copper (Cu) and zinc (Zn) were not affected, or even increased significantly in case of P and Cu in young leaves by glyphosate, while the concentrations of calcium (Ca), manganese (Mn) and magnesium (Mg) were reduced, particularly in young leaves. In the case of Fe, leaf concentrations showed a tendency to be reduced by glyphosate. In the second experiment harvested at the grain maturation, glyphosate application did not reduce the seed concentrations of nitrogen (N), K, P, Zn and Cu. Even, at the highest application rate of glyphosate, seed concentrations of N, K, Zn and Cuwere increased by glyphosate. By contrast, the seed concentrations of Ca, Mg, Fe and Mn were significantly reduced by glyphosate. These results suggested that glyphosatemay interfere with uptake and retranslocation of Ca, Mg, Fe and Mn, most probably by binding and thus immobilizing them. The decreases in seed concentration of Fe, Mn, Ca and Mg by glyphosate are very specific, and may affect seed quality

Magnetocaloric effect and critical behavior near the paramagnetic to ferrimagnetic phase transition temperature in TbCo2-xFex

Magnetocaloric effect (MCE) in TbCo2-xFex has been studied by dc magnetization measurements.On substituting Fe in TbCo2, not only the magnetic transition temperature is tuned to room temperature, but also the operating temperature range for MCE is increased from 50 K for TbCo2 to 95 K for TbCo1.9Fe0.1. The maximum magnetic entropy change (-{\Delta}SM) for TbCo1.9Fe0.1 is found to be 3.7 J kg-1 K-1 for a 5 T field change, making it a promising candidate for magnetic refrigeration near room temperature. The temperature dependent neutron diffraction study shows a structural phase transition (from cubic to rhombohedral phase with lowering of temperature) which is associated with the magnetic phase transition and these transitions broaden on Fe substitution. To investigate the nature of the paramagnetic to ferrimagnetic phase transition, we performed a critical exponent study. From the derived values of critical exponents, we conclude that TbCo2 belongs to the 3D Heisenberg class with short-range interaction, while on Fe substitution it tends towards mean-field with long-range interaction. The derived values of critical exponents represent the phenomenological universal curve for the field dependence of {\Delta}SM, indicating that TbCo2 and TbCo1.9Fe0.1 belong to two different universality classes.Comment: 12 figure

Coral spawning information

Information on reproduction in reef corals is presented. An understanding of its reproductive behaviour is an important factor in helping to preserve the coral reef ecosystems.Coral reefs, Spawning

The Incidence of Repeat Breeding in Dairy Cows Under Tropical Condition

The objective of this study was to investigate the incidence of repeat breeding in dairy cows under tropical condition. This was a preliminary study conducted in Sinjai Regency, Indonesia. A total of 82 Holstein Friesian lactating cows from five dairy farmer groups were used in the present study. Of the 82 cows, 75.6% eventually became pregnant after repeated inseminations (AI). The incidence of repeat breeding in this area was very high (62%). Days in milk (DIM) at first AI, first AI conception rate, and calving to conception interval were 62.5±19.3 days, 0%, and 202.8±150.0 days, respectively. There was no difference in DIM at first AI between repeat breeders and normal fertility cows (60.4±15.2 days vs 68.3±28.6 days). However, normal fertility cows required only 123.3±52.9 days to conceive and 2.4±0.8 inseminations per pregnancy, whereas repeat breeders required significantly more days to conceive (222.9±134.1 days) and more inseminations per pregnancy (4.8±0.9). In conclusion, repeat breeder dairy cows under tropical condition had very poor and reduced reproductive performance

Nonisocyanate based polyurethane/silica nanocomposites and their coating performance

A series of silica nano-particles with different size were prepared by sol–gel technique, then surface modification by using cyclic carbonate functional organoalkoxysilane (CPS) was performed. Various amounts of carbonated silica particles directly added into carbonated soybean oil (CSBO) and carbonated polypropylene glycol (CPPG) resin mixture to prepare polyurethane–silica nanocomposite coating compositions by nonisocyanate route using an aliphatic diamine as a curing agent. Cupping, gloss, impact, and taber abrasion tests were performed on aluminum panels coated with those nano-composite formulations and tensile tests, thermogravimetric and SEM analyses were conducted on the free films prepared from the same coating formulations. An increase in abrasion resistance of CSBO-CPPG resin combination with the addition of silica was observed. In addition, the maximum weight loss of CSBO-CPPG resin combination was shifted to higher temperatures with incorporation of silica nano-particles The positive effect of modified silica particles on thermal stability of CSBO-CPPG system could be explained in such a way that PPG chains are able to disperse particles in the medium throughout the interactions between ether linkages and silanol groups

Two-dimensional Induced Ferromagnetism

Magnetic properties of materials confined to nanometer length scales are providing important information regarding low dimensional physics. Using gadolinium based Langmuir-Blodgett films, we demonstrate that two-dimensional ferromagnetic order can be induced by applying magnetic field along the in-plane (perpendicular to growth) direction. Field dependent exchange coupling is evident in the in-plane magnetization data that exhibit absence of hysteresis loop and show reduction in field required to obtain saturation in measured moment with decreasing temperature.Comment: 4 pages, 3 postscript figures, corrected paper forma

Eksekusi terhadap Pidana Tambahan Berupa Uang Pengganti pada Tindak Pidana Korupsi oleh Kejaksaan Negeri Padang (Studi Putusan Nomor: 19/pid.sus-tpk/2015/pn Pdg)

Broadly speaking, the execution is one of the jurisdiction of the prosecutor as regulated by the law to enforce the judge's decision, as well as the additional criminal under Article 10 point (b) of the Criminal Code and Article 18 Paragraph (1) of Law Number 31 Year 1999 regarding Eradication of Corruption. In fact it is undeniable that corruption is currently one of the extraordinary crimes that have an impact on the state's financial losses, which are of the essence in returning the state's losses, particularly with regard to the execution of additional crimes in the form of substitute payments on corruption. The problems in this thesis are: Firstly, how is the execution process of additional criminal in the form of replacement money on corruption crime by Padang State Attorney ?. Secondly, what are the obstacles encountered by the Padang District Attorney in the execution of additional crime in the form of substitute money on corruption and how is the effort to overcome these obstacles?. Specification of this research is an analytical descriptive research. Approach method used is normative juridical as main approach and supported by empirical juridical approach. The data used are secondary data and primary data. The data obtained were analyzed qualitatively and presented analytically descriptively. Based on the research and discussion it can be seen that: First, the process of execution of additional crime in the form of replacement money on corruption crime by State Prosecutor of Padang is done through execution of court decision which has obtained legal force still done by prosecutor, after the clerk sends a copy of decision letter to him, this requires that a new execution be exercised by the prosecutor, after the clerk has sent a copy of the verdict to him, so the defendant refuses to be executed on the basis of the quotation of the permanent verdict in addition to the court's verdict giving no legal basis on the property of the accused that has been confiscated. This is based on the task of the Prosecutor as the executor to execute in accordance with existing legislation. Second, the obstacles encountered by the Padang District Attorney in additional criminal execution in the form of substitute money in corruption are the absence of a standard rule governing the execution mechanism, including guidance if the defendant is unable to pay for all or part of the additional penalty imposed. The easy access to double identity card making it difficult to trace the convicted property, the duration of the judicial process until the verdict has the legal power to keep the execution and the number of convicts who prefer to go through the additional criminal sanction of the additional criminal. While the efforts made by the State Prosecutor Padang is to reform the legislation related to the authority of the Public Prosecutor Office through the Attorney General to seize the assets of someone suspected of having committed a criminal act of corruption that harm the state finances