The Effect of Person–Job Fit to Job Involvement With Intrinsic Motivation as Intervening Variable

Background: Indonesia is incorporated in the ASEAN Economy Community (AEC). AEC’s impacts encourage companies to compete competitively to maintain their existence among competitors. Therefore, the company requires employees who have high levels of job involvement to be able to work effectively and efficiently. Job involvement is a positive attitude that encourages employees to contribute positively to the work. Purpose: To analyze the effect of person–job fit toward job involvement with intrinsic motivation as an intervening variable. Method: Data were collected with simple random sampling method, through observation and questionnaires that involved 131 employees from the central office at PT. Bank Pembangunan Daerah Jawa Timur Tbk’s Surabaya. Technical data testing used is SEM-PLS and Sobel test to study the effects of mediation. Result: Person–job fit influence is positively significant toward job involvement and intrinsic motivation. Intrinsic motivation proved to be a mediator in the relation between person–job fit and job involvement.     Keywords: person–job fit, intrinsic motivation, job involvemen

Evaluation of Soil Test Phosphorus Extractants in Idaho Soils

Soil P testing is critical to ensure the accuracy of fertilizer recommendations and to optimize crop yield while minimizing negative environmental consequences. Olsen-P is the most commonly used soil P test for alkaline calcareous soils found in Idaho and the western United States. The Bray- 1 test is commonly used in the Pacific Northwest on neutral to acidic soils but underestimates P in alkaline calcareous soils. Mehlich-3 has been evaluated throughout various regions in the United States. Few data evaluating Mehlich-3 exist for soils in the western United States. Additionally, the comparatively newly developed Haney–Haney–Hossner–Arnold (H3A) test, a component of the soil health tool, has not been widely evaluated on alkaline calcareous soils. Soil samples from the 0- to 30-cm depth were collected from agricultural fields throughout Idaho and analyzed with Bray-1, H3A, Mehlich-3, and Olsen-P extractants. The results indicate that Olsen-P was correlated with Mehlich-3, whereas Bray-1 and H3A were not correlated with Olsen-P. Both Bray-1 and H3A resulted in lower values of extractable P than the Olsen-P test, whereas Mehlich-3 resulted in greater values. A threshold point in CaCO3 (i.e., inorganic C) of 6.7 and 5.1 mg kg-1 for the Bray-1 and H3A was obtained, respectively, which indicated that inorganic C concentrations at or above these levels resulted in a reduction in extractable soil P. Thus Mehlich-3 could be evaluated for use in alkaline calcareous soils, whereas Bray-1 and H3A have notable issues that would limit their applicability

Soil carbonate analysis using the solvita compost maturity gel system

Soil fertility and nutrient-management programs across Idaho and the western United States need to consider the effective comparison of various extractants for nutrient analysis. Common extractants for primary (potassium; K), secondary (calcium; Ca, magnesium; Mg, sulfur; S) and micro (zinc; Zn, copper; Cu, manganese; Mn, iron; Fe, aluminum; Al, boron; B, sodium; Na,)-nutrients vary (e.g., ammonium acetate, AA, Olsen). The desire to develop relationships among common tests in the region and those of multinutrient extractants used or proposed in other geographical regions has increased due to the interest in soil health measurements (Mehlich-3; M-3 and Haney, Haney, Hossner, Arnold; H3A). To investigate these multinutrient tests, 46 primarily alkaline soils were sampled from the 0 to 30-cm depth in agricultural fields in Idaho. The majority of nutrients were highly related and relationships were developed. However, for Ca issues were noted for M-3 due to high levels of calcium carbonate in the soil interfering with the test on alkaline soils. Additionally, issues were noted for specific micronutrients when both acidic and alkaline soils were combined in the analysis, but were improved when they were separated. Thus, this research provides specific correlation equations that could be used for comparison among tests as well as provides evidence of the potential suitability of multinutrient extractants in the region

Comparison of soil-test extractants for potassium, calcium, magnesium, sulfur, and micronutrients in Idaho soils

Soil fertility and nutrient-management programs across Idaho and the western United States need to consider the effective comparison of various extractants for nutrient analysis. Common extractants for primary (potassium; K), secondary (calcium; Ca, magnesium; Mg, sulfur; S) and micro (zinc; Zn, copper; Cu, manganese; Mn, iron; Fe, aluminum; Al, boron; B, sodium; Na,)-nutrients vary (e.g., ammonium acetate, AA, Olsen). The desire to develop relationships among common tests in the region and those of multinutrient extractants used or proposed in other geographical regions has increased due to the interest in soil health measurements (Mehlich-3; M-3 and Haney, Haney, Hossner, Arnold; H3A). To investigate these multinutrient tests, 46 primarily alkaline soils were sampled from the 0 to 30-cm depth in agricultural fields in Idaho. The majority of nutrients were highly related and relationships were developed. However, for Ca issues were noted for M-3 due to high levels of calcium carbonate in the soil interfering with the test on alkaline soils. Additionally, issues were noted for specific micronutrients when both acidic and alkaline soils were combined in the analysis, but were improved when they were separated. Thus, this research provides specific correlation equations that could be used for comparison among tests as well as provides evidence of the potential suitability of multinutrient extractants in the region

Soil phosphorus testing on alkaline calcareous soils

Soil phosphorus testing made great strides with multiple chemical tests proposed and implemented that have been used for fertilizer management programs for crop production during the previous century. In the latter part of the previous century, the environmental impact of excess nonpoint phosphorus loading from the landscape (e.g. agricultural lands) to waterbodies became an issue of increased concern and soil phosphorus testing came to the forefront of management and monitoring. This article will provide a general overview of the usage of phosphorus testing for agronomic purposes in the United States

Aircraft based four-channel thermal dissociation laser induced fluorescence instrument for simultaneous measurements of NO2, total peroxy nitrate, total alkyl nitrate, and HNO3

A four-channel thermal dissociation laser induced fluorescence (TD-LIF) instrument has been developed for simultaneous measurements of nitrogen dioxide (NO2), total peroxy nitrate (∑PNs), total alkyl nitrate (∑ANs) and nitric acid (HNO3). NO2 is measured directly by LIF at 532 nm, whereas organic nitrates and nitric acid are thermally dissociated at distinct temperatures in the inlet to form NO2, which is then measured by LIF. The concentrations of each dissociated species are derived by the differences in measured NO2 relative to the reference colder inlet channel. The TD-LIF was adapted to fly on board the UK Facility for Airborne Atmospheric Measurements (FAAM) BAe 146-301 atmospheric research aircraft in summer 2010, and to date has successfully flown in five field campaigns. This paper reports novel improvements in the TD-LIF instrumentations, including (1) the use of a single wavelength laser, which makes the system compact and relatively cheap; (2) the use of a single beam laser that allows easy alignment and optical stability against the vibrational aircraft environment; and (3) the optical assembly of four detection cells that allow simultaneous and fast (time resolution up to 0.1 s) measurements of NO2, ∑PNs, ∑ANs and HNO3. Laboratory-generated mixtures of PNs, ANs and HNO3 in zero air are converted into NO2 and used to fix the dissociation temperatures of each heated inlet to test the selectivity of the instrument and potential interferences due to recombination reactions of the dissociated products. The effectiveness of the TD-LIF was demonstrated during the RONOCO aircraft campaign (summer 2010). A chemiluminescence system that was measuring NO2 and a broadband cavity enhanced absorption spectrometer (BBCEAS) that was measuring one of the PNs (N2O5) were installed on the same aircraft during the campaign. The in-flight intercomparison of the new TD-LIF with the chemiluminescence system for NO2 measurements and the intercomparison between ∑PNs measured by the TD-LIF and N2O5 by the BBCEAS are used to assess the performance of the TD-LIF

Evaluation of residue management practices on barley residue decomposition

Optimizing barley (hordeum vulgare L.) production in Idaho and other parts of the Pacific Northwest (PNW) should focus on farm resource management. The effect of post-harvest residue management on barley residue decomposition has not been adequately studied. Thus, the objective of this study was to determine the effect of residue placement (surface vs. incorporated), residue size (chopped vs. ground-sieved) and soil type (sand and sandy loam) on barley residue decomposition. A 3-mo laboratory incubation experiment was conducted at a temperature of 25 to 30 °C at the Aberdeen Research and Extension Center, Aberdeen, Idaho, USA. Following the study, a Markov-Chain Monte Carlo (MCMC) modeling approach was applied to investigate the first-order decay kinetics of barley residue. An accelerated initial flush of C-mineralization was measured for the sieved (Day 1) compared to chopped (Day 3 to 5) residues for both surface incorporated applications. The highest evolution of CO2-C of 8.3 g kg-1 was observed on Day 1 from the incorporated-sieved application for both soils. The highest and lowest amount of cumulative CO2-C released and percentage residue decomposed over 50-d was observed for surface-chopped (107 g kg-1 and 27%, respectively) and incorporated-sieved (69 g kg-1 and 18%, respectively) residues, respectively. There were no significant differences in C-mineralization from barley residue based on soil type or its interactions (p >0.05). The largest decay constant k of 0.0083 d-1 was calculated for surface-chopped residue where the predicted half-life was 80 d, which did not differ from surface sieved or incorporated chopped. In contrast, incorporated-sieved treatments only resulted in a k of 0.0054 d-1 and would need an additional 48 d to decompose 50% of the residue. Future residue decomposition studies under field conditions are warranted to verify the residue C-mineralization and its impact on residue management

Recent advances on information transmission and storage assisted by noise

The interplay between nonlinear dynamic systems and noise has proved to be of great relevance in several application areas. In this presentation, we focus on the areas of information transmission and storage. We review some recent results on information transmission through nonlinear channels assisted by noise. We also present recent proposals of memory devices in which noise plays an essential role. Finally, we discuss new results on the influence of noise in memristors.Comment: To be published in "Theory and Applications of Nonlinear Dynamics: Model and Design of Complex Systems", Proceedings of ICAND 2012 (Springer, 2014