Productivity Of Cultures Research Articles

Influence of Effective Irrigation Water Usage on Carrot Root Productivity and Quality Properties in Soilless Culture

Influence of Effective Irrigation Water Usage on Carrot Root Productivity and Quality Properties in Soilless Culture

The Impact Of Principle's Transformative Leadership On Organizational Culture, Commitment, Behavior And Performance Productivity

This study aims to determine the transformation of the principal's leadership style at MTs Palangkaraya City, Central Kalimantan in building organizational culture, performance commitment, performance behavior and employee performance productivity. This study used a quantitative approach with data collection techniques by distributing questionnaires, with a sample of 166 school principals from a total of 210 schools, thus to determine the characteristics of each respondent and variables, this study used descriptive data analysis. Meanwhile, to test the relationship between variables, inferential analysis can be used using the Structural Equation Modeling (SEM) method and the AMOS version 7 approach. The results of this study explain that leadership style transformation is seen as quite effective in dealing with various changes and is believed to be the strongest leadership model (strong leadership), because it can build a healthy organizational culture, performance commitment and performance behavior, so as to increase the productivity of individual performance to be more effective.

Robust Model Predictive Control of a Vaccine Production Unit

In this paper, nonlinear model predictive controllers (NMPC) are proposed to optimize the biomass productivity of yeast fed-batch cultures. Their predictions are driven by a mechanistic model developed using a few industrial vaccine production data sets. The limited amount of data causes high parametric uncertainty levels and, to address this issue, a robust tube-based MPC is proposed and its robustness is assessed by a Monte-Carlo analysis, and compared to the classical MPC formulation.

Ethanol regulation in yeast fed-batch cultures by stabilizing extremum seeking

In this study, an original model-free stabilizing extremum seeking (STAB-ESC) strategy is applied to optimize yeast fed-batch culture productivity. To this end, the ethanol concentration is tracked at a low level, to approach the yeast growth optimal conditions. Overflow metabolism effects, resulting from the cell's limited respiratory capacity, are considered using a macroscopic model with discontinuous kinetics. The detrimental impact of input saturation on the proposed STAB-ESC stability is overcome using a state-dependent switching control strategy. The resulting methodology is illustrated with numerical results where the robustness of the controller to measurement noise is also highlighted.

Piggery wastewater treatment with a Chlorella microalgae-bacteria consortium and static magnetic field

Wastewater discharges into the environment without adequate treatment is a problem still unresolved. That is why alternative technologies, such as applying static magnetic field (SMF), are currently being sought. The objective of this research was to evaluate the effect of a 47.23 mT SMF on the removal of nitrogen (N), phosphorus (P), and the growth of a Chlorella microalgae-bacteria consortium grown in piggery wastewater under different photoperiods. SMF application increased culture productivity, with maximum values of 0.030 g/ Ld−1 in cultures exposed to SMF in a 16:8 h light/dark photoperiod and 0.038 g/ Ld−1 for the 24:0 h light/dark photoperiod. Furthermore, SMF application increased the microorganisms' photosynthetic efficiency (QY), regardless of the photoperiod used. No significant differences were observed on day 21 regarding nutrient removal between the treated and control cultures. Removal percentages of 93.41 % N and 95.56 % P were obtained for the cultures exposed to SMF in the 16:8 h light/dark photoperiod, and 94.78 % N and 95.59 % P for cultures exposed to SMF during the 24:0 h light/dark photoperiod. In general, SMF acts mainly on the growth of microorganisms.

Toxicological evaluation of ginsenoside-rich cell culture biomass of Panax japonicus produced in a large-scale bioreactor system

An environmentally friendly, resource-efficient substitute for the production of vegetative biomass and the bioactive components of medicinal plants is provided by novel biotechnology-based suspension cells cultured in bioreactors. Despite the cultured biomass is produced in the controlled conditions, it requires detailed chemical analysis and toxicological evaluation before being approved for human consumption. This study reports the results of biochemical, toxicological, and elemental composition analysis of the suspension cell culture of a medicinal species Panax japonicus (T. Nees) C.A. Mey. cultivated in a large-scale bioreactor system. For the scaling up the process of cultivation, the suspension culture was grown sequentially in a series of laboratory (20-L), pilot (75-L), and industrial (630-L) bioreactors. The biomass productivity of cell culture was comparable or higher than of wild plants or in vitro cultured hairy roots reported in the literature. The resulting cell biomass was analyzed for ginsenoside contents using ultra-high-performance liquid chromatography-electrospray ionization-mass spectrometry (UHPLC–ESI–MS). For the elemental composition of cells, inductively coupled argon plasma mass spectrometry (ICP–MS) was used. In addition, the biomass was evaluated for acute toxicity and skin sensibilization effects on in vivo animal models. The analyses confirmed that suspension cells cultured in bioreactors accumulate a broad spectrum of ginsenosides and their malonylated derivatives at a total concentration of 7.54 % (w/w) based on dry weight and contain essential macro- (K, Ca, Mg, Na) and micro- (Zn, Mn, Fe, B, Al, Cu) elements in dietary-safe concentrations. Acute toxicity tests using the administered doses of 2000 and 5000 mg dry biomass per kg animal weight resulted in no changes in animal organ weights and no or minor changes in hematological and biochemical parameters of blood. No skin irritation or sensitizing effects were observed. Therefore, bioreactor cultivation of P. japonicus cell suspension is highly productive and provides a ginsenoside-rich and non-toxic cell biomass which is a potentially valuable component of functional foods, food additives, and natural health products.

Exploring the dynamics of neuroticism: A comprehensive analysis of two different workplace settings

This research delves into the multifaceted dimensions of neuroticism, a fundamental trait in personality psychology, and its implications in the workplace. Grounded in psychological theories and the Big Five personality traits model, the study aims to unravel the nuances of neuroticism, exploring its historical evolution from a concept of pathological anxiety to a contemporary understanding as a normal personality trait. Motivated by firsthand observations of disparate approaches to neuroticism in the automotive industry across Romania and the United Kingdom, the study investigates the cultural and individual factors influencing these variations. The workplace, as a dynamic and culturally diverse arena, serves as a crucial backdrop for understanding how neuroticism manifests and its potential impact on employee well-being and organizational dynamics. The research unfolds against the backdrop of globalization, emphasizing the need to examine cultural differences in the manifestation of neuroticism. Drawing on insights from the automotive industry, the study explores the implications of neuroticism on team dynamics, organizational culture, and overall workplace productivity. The significance of the study lies in its potential to inform organizational policies, management strategies, and intercultural training programs aimed at optimizing workplace environments. By uncovering the cultural dimensions of neuroticism, the research seeks to contribute nuanced insights that can guide the development of targeted interventions for creating healthier and more productive work environments for employees across different cultural backgrounds. In conclusion, this study offers a comprehensive exploration of neuroticism, weaving together psychological theories, workplace dynamics, and cultural considerations. By shedding light on the interplay between neuroticism and cultural diversity, the research aims to provide valuable insights for both academic research and practical applications in organizational settings.

PENGARUH MOTIVASI, BUDAYA ORGANISASI DAN TURNOVER INTENTION TERHADAP PRODUKTIVITAS KERJA KARYAWAN

This study aims to analyze how motivation, organizational culture, and turnover intention impact employee productivity (a study conducted on employees of PT Bank Sumut Medan Head Office Human Resources Division). The research design employed in this study is quantitative research with an associative approach. Sampling was conducted using the saturated sampling technique, and 41 respondents were selected as samples. Primary data for this study were obtained by distributing questionnaires directly to employees (respondents), while secondary data were gathered through literature studies. The data analysis techniques included validity tests and reliability tests. The data analysis methods encompassed classical assumption tests, multiple linear regression analysis, and hypothesis testing. The results of this study indicate that motivation, organizational culture, and turnover intention all have a significant impact, both individually and collectively, on employee productivity.

TINGKAT KEPADATAN Vibrio sp. DAN KELIMPAHAN PLANKTON PADA PERTUMBUHAN UDANG VANNAMEI (Litopenaeus vannamei) DI CV REJO ROYAL BANYUWANGI JAWA TIMUR

Rejo Royal is a company that is active in producing and developing vannamei shrimp culture that has implemented an intensive technology system. Calculation of vibrio and plankton is very necessary in vannamei shrimp farming activities, it affects in productivity. Therefore, it is necessary to calculate the density of vibrio and abundance of plankton to support the productivity of vannamei shrimp farming. The purpose of this study was to find out how to check vibrio density and plankton abundance on the productivity of vannamei shrimp culture. TBC and TVC calculations were carried out in ponds A4 and A6 using a hand counter once every 10 days. Calculation of plankton abundance using a haemocytometer is done every 5 days. The abundance of plankton in the waters is very beneficial, to suppress the development of Vibrio sp. Pond C4 in DOC 20 with an abundance of 9.0x10³ cells/ml plankton was able to suppress TVC 2.9x10³ CFU/ml. Whereas, pond C6 in DOC 20 with an abundance of plankton 6.8x10³ cells/ml was able to suppress TVC 3.8x10³ CFU/ml. The abundance of vibrio affects the productivity of shrimp, wherease the higher TVC affects the decrease in Average Daily Growth. TVC in Pond C4 at DOC 90 with an abundance 2.2x10³ CFU/ml affected decreament of ADG by 0.45 gr. Likewise, the lower the TVC affects increament of ADG. TVC in Pond C6 with abundance 2.4x10³ CFU/ml affected increament of ADG by 0.57 gr.

Recycling of nutrient medium to improve productivity in large-scale microalgal culture using a hybrid electrochemical water treatment system

Recycling and reusing of nutrient media in microalgal cultivation are important strategies to reduce water consumption and nutrient costs. However, these approaches have limitations, e.g., a decrease in biomass production, (because as reused media can inhibit biomass growth). To address these limitations, we applied a novel membrane filtration‒electrolysis‒ultraviolet hybrid water treatment method capable of laboratory-to-large-scale operation to increase biomass productivity and enable nutrient medium disinfection and recycling. In laboratory-scale experiments, electrolysis effectively remove the biological contaminants from the spent nutrient medium, resulting in a high on-site removal efficiency of dissolved organic carbon (DOC; 80.3 ± 5 %) and disinfection (99.5 ± 0.2 %). Compared to the results for the recycling of nutrient medium without water treatment, electrolysis resulted in a 1.5-fold increase in biomass production, which was attributable to the removal of biological inhibitors from electrochemically produced oxidants (mainly OCl−). In scaled-up applications, the hybrid system improved the quality of the recycled nutrient medium, with 85 ± 2 % turbidity removal, 75 ± 3 % DOC removal, and 99.5 ± 2 % disinfection efficiency, which was beneficial for biomass growth by removing biological inhibitors. After applying the hybrid water treatment method, we achieved a Spirulina biomass production of 0.47 ± 0.03 g L−1, similar to that obtained using a fresh medium (0.53 ± 0.02 g L−1). The on-site disinfection process described herein is practical and offers a cost-saving and environmental friendly alternative for nutrient medium recycling and reusing water in mass and sustainable cultivation of microalgae.

Investigating the relationship between organizational culture and human resource productivity (case study of government department employees in Ilam province)

Background and purpose: Organizational culture and human resource productivity are among the categories that have attracted the attention of many behavioral science and management experts in recent years. The current research aimed to investigate the relationship between organizational culture and human resource productivity among government department employees in Ilam province. Methodology: The research is correlational and descriptive, and its population consists of all the education workers of Ilam province; 164 employees were selected as a sample through Cochran's sampling formula. To collect data, a standard questionnaire including general questions about the status of the respondents and specialized questions about organizational culture and human resource productivity in education and training was used in the form of questions with a Likert scale, and Cronbach's alpha method was used to check its reliability. In data analysis, descriptive statistics and inferential statistics methods such as t-test, analysis of variance tests with a significance level of 05%, and Pearson's correlation coefficient were used to correlate variables using SPSS software. Results: The findings of the research that took place in education in Ilam province indicate a significant and direct relationship between organizational culture and human resource productivity, and culture directly impacts the organization's performance and effectiveness. Conclusion: The results showed a direct and meaningful relationship between the existence of close and intimate relationships between human resources and the organization's productivity.

Pengaruh Budaya Kerja Dan Kondisi Kerja Terhadap Produktivitas Kerja Karyawan Arin Bakery

This study aims to investigate the effect of work culture and working conditions on employee productivity at Arin Bakery. The sample of this study consisted of 30 employees from the total population. The sampling method used was saturated sample sampling technique, in which all members of the population were part of the research sample. Data were collected through a survey using a questionnaire that had been tested for validity and reliability. The questionnaire included questions related to work culture, working conditions, and work productivity. The collected data were then analyzed using regression analysis. The results showed that there is a positive and significant influence between work culture on employee productivity at Arin Bakery partially. This can be seen from the t-value (2.852) which is greater than the t-table (1.699) with a significance level of 0.008 which is smaller than 0.05, and a regression coefficient of 0.508. Furthermore, the results also show that there is a positive and significant influence between working conditions on employee productivity at Arin Bakery partially. It can be seen from the t-value (2.109) which is greater than the t-table (1.699) with a significance level of 0.000 which is also smaller than 0.05, as well as a regression coefficient value of 0.529. In addition, this study also shows that simultaneously, work culture and working conditions together have a significant influence on employee productivity at Arin Bakery. This can be seen from the results of the F test (74.176) which is greater than the F-table (8.169) with a significance level of 0.000 which is smaller than 0.05.

Talent Management, Organizational Culture and Employee Productivity: The Moderating Effect of Employee Involvement

Aim - This study investigates the influence of talent management and organi-zational culture on employee productivity in the public sector, also it assessed the moderating effect of employee involvement in the relationship. Methodology- The study employed a quantitative approach in data collection and analysis. Data was collected through a structured questionnaire disributed among 158 purposively sampled permanent senior staff in University of Ilor-in, Nigeria. The analysis was conduucted using Partial Least Square Strcutural Equation Modelling. Findings- The findings indicate several significant relationships between tal-ent management, employee commitment, employee productivity, and em-ployee satisfaction. Limitations- First is the small sample size of only 158 respondents from the public service. This small sample size may not accurately represent the views and experiences of employees from other industries or sectors and may limit the generalizability of the findings. Second, the study was conducted with a specific population of public service employees which may not be applicable to other sectors or organizations. Third is that the study relied on self-reported data from a survey, which may be subject to bias. Participants may have provided responses that they believed were socially desirable, rather than accurate reflections of their true beliefs and experiences. Practical implications- Public sector organizations should focus on imple-menting effective talent management practices, fostering a positive organisa-tional culture, and involving employees in shaping the culture in order to improve employee commitment and satisfaction. Further, the findings high-light the importance of focusing on employee commitment and improving employee productivity. More so, the rate at whihc employees are involved in the organization has an impact on the relationship between the organizational culture and employees’ productivity. Originality/value- The study contributes to literature by exploring how talent managment influences employee productivity, while investiating the critical moderating role of employee involvment.

Production of a chimeric porcine reproductive and respiratory syndrome virus (PRRSV)-2 vaccine using a lab-scale packed-bed bioreactor CelCradle

BackgroundWe developed a MARC-145 cell culture and porcine reproductive and respiratory syndrome (PRRS) vaccine production using a novel CelCradle bioreactor. CelCradle is a packed-bed bioreactor capable of both batch and perfusion culture, and the operating parameters are easy to optimize.ResultsIn this study, CelCradle reached a maximum cell density of 8.94 × 105 cells/mL at 5 days post-seeding when seeded at 8.60 × 104 cells/mL (doubling time = 35.52 h). Inoculation of PRRS vaccine candidate, K418DM1.1, was performed at a multiplicity of infection (MOI) of 0.01 at 5 days post-seeding, which resulted in a high viral titer of 2.04 × 108 TCID50/mL and total viral load of 1.02 × 1011 TCID50/500 mL at 2 days post-infection (dpi). The multilayer cultivation system, BioFactory culture, yielded a higher doubling time (37.14 h) and lower viral titer (i.e., 8.15 × 107 TCID50/mL) compared to the CelCradle culture. Thus, the culture medium productivity of the CelCradle culture was 2-fold higher than that of the BioFactory culture. In the animal experiment, the CelCradle-produced vaccine induced high levels of neutralizing antibodies and effectively protected pigs against homologous challenge, as shown by the significantly lower levels of viremia at 1- and 7-days post-challenge (dpc) compared to the non-vaccinated pigs.ConclusionsOverall, this study demonstrates that the CelCradle system is an economical platform for PRRS vaccine production.

Pengaruh Gaya Kepemimpinan, Iklim Organisasi dan Insentif terhadap Produktivitas Karyawan di PT SAI APPAREL INDUSTRIES

Employee work productivity is a hot issue and there will be no end to discuss it. Problems related to productivity are also strategic issues for companies that are programming human resources. There are many internal and external aspects that support the creation of effective and efficient work productivity in corporate culture. The purpose of this study was to determine the effect of leadership style, organizational climate and incentives on the productivity of employees of PT Sai Apparel Industries. The approach used in this research is the quantitative approach. The results of this study are leadership style, organizational climate have a positive and significant impact on employee productivity. In addition, incentives have a negative and insignificant effect on employee productivity.

The Effect of Performance on Organizational Culture, Digital Transformation and Employee Productivity in the Company

Literature study scientific articles discuss the effect of performance on organizational culture, digital transformation, and productivity in the context of human resource management science. The focus of this article is to build a hypothesis regarding the relationship between variables that will be used in future research. The research object involves online libraries, Mendeley, Google Scholar, and various other online academic media. The method used in this research is library research which involves sources of information in the form of e-books and electronic journals which can be accessed openly. The results of this article reveal that: Organizational culture has a significant and positive influence on employee performance. Digital Transformation has a significant and positive influence on employee performance. Productivity has a significant and positive influence on employee performance.

Quantifying AEC professionals' cross-work culture productivity: comparison between Malaysian and UK projects during industrialized building project

PurposeThis paper discussed quantifying architect, engineer and contractor (AEC) professionals' cross-work culture productivity by comparing between Malaysian and United Kingdom (UK) projects during industrialized building project delivery. This study addressed the second part of a mixed method research design study.Design/methodology/approachThis study hypothesized that with understanding of cultural work knowledge between professionals during design phase coupled with competent technological support, productivity can be improved. It utilized Cognitive Organizational Theory (COT) protocols to test conceptual models in SimVision®. Organizational structure, project intensity, and statistical validations parameters were performed to obtain the reliability and generalization of the result.FindingsThis study found that with Building Information Modeling (BIM) technology intervention, the handling of exception, coordination and decision-making time could be improved, resulting in better project performances. The result also indicated that in choosing organizational fit, national culture factor needed to be considered; otherwise, organizational change would be unacceptable. By changing the operational process from intensive to reciprocal task intensity with BIM technology intervention, the effect on productivity would be similar to changing hierarchical organizational structure to flatter organizational structure.Research limitations/implicationsProject discrepancies issues are limitedly discussed due to companies' confidentiality. The paper only focuses on understanding the effects of human factors during the integrated project delivery phase.Practical implicationsThe findings could support developing countries' professionals to collaborate effectively with developed countries' professionals.Originality/valueThe development of the project's cultural knowledge experimentations will provide guidance to teams involved in international projects from developed and developing countries in pursuing joint ventures in project deliveries in either country successfully.

Pengaruh Budaya Organisasi Terhadap Produktivitas Kerja Guru di SMP Al-Farisi Tapos Bogor

The success and performance of teachers in the field of education is largely determined by organizational culture because it is seen as a factor that has an influence on increasing teacher work productivity. Many teachers do not pay attention to the organizational culture applied in schools which causes teacher work productivity to decrease so that it has an impact on the graduation (output) of students. The research method used is a quantitative approach. Data collection techniques using instruments or questionnaires. It is known that the results of statistical calculations using SPSS 22 show that there is a significant positive relationship between Organizational Culture (X) and Teacher Work Productivity (Y) at SMP Al-Farisi Tapos Bogor, as evidenced by Ryx = 0.470 which has a fairly deep relationship. range (0.400-0.600), the significant value and the value of the coefficient of determination are 24.6% and 74.4% are influenced by other factors. Such as education, skills, motivation, salary, health, technology, achievement opportunities and others.

Modulation of xanthophyll cycle impacts biomass productivity in the marine microalga Nannochloropsis

Life on earth depends on photosynthetic primary producers that exploit sunlight to fix CO2 into biomass. Approximately half of global primary production is associated with microalgae living in aquatic environments. Microalgae also represent a promising source of biomass to complement crop cultivation, and they could contribute to the development of a more sustainable bioeconomy. Photosynthetic organisms evolved multiple mechanisms involved in the regulation of photosynthesis to respond to highly variable environmental conditions. While essential to avoid photodamage, regulation of photosynthesis results in dissipation of absorbed light energy, generating a complex trade-off between protection from stress and light-use efficiency. This work investigates the impact of the xanthophyll cycle, the light-induced reversible conversion of violaxanthin into zeaxanthin, on the protection from excess light and on biomass productivity in the marine microalgae of the genus Nannochloropsis. Zeaxanthin is shown to have an essential role in protection from excess light, contributing to the induction of nonphotochemical quenching and scavenging of reactive oxygen species. On the contrary, the overexpression of zeaxanthin epoxidase enables a faster reconversion of zeaxanthin to violaxanthin that is shown to be advantageous for biomass productivity in dense cultures in photobioreactors. These results demonstrate that zeaxanthin accumulation is critical to respond to strong illumination, but it may lead to unnecessary energy losses in light-limiting conditions and accelerating its reconversion to violaxanthin provides an advantage for biomass productivity in microalgae.

Pengaruh Budaya Organisasi Terhadap Produktivitas Pegawai Pada UPT SMAN 3 Wajo Di Kabupaten Wajo

Every organization is established based on certain goals and targets. Likewise with school. Every school has its own goals. This goal will not be realized without the support of adequate human resources. Because human resources are very influential on the success or failure of a school in achieving goals. Every school always tries to increase employee productivity in order to survive, develop and have high trust from outsiders. In order to increase employee productivity, it is often necessary to improve and improve the human resources of employees. However, activities to increase the human resources of employees often do not achieve what they expect, namely achieving the goals of the school organization such as increasing employee productivity. Even though they already have the resources qualified employees, employees may not necessarily be able to provide good work results for school organizations if they are still in the shackles of a work culture that is less supportive and not conducive.
 This research is a type of quantitative research using a survey approach which intends to test the combination/influence of the independent variables on the dependent variable, namely organizational culture on employee productivity at UPT SMAN 3 Wajo. The number of samples taken from UPT SMAN 3 Wajo employees is 40 people from the total employees. there are 67 people.
 Based on the results of data processing using the SPSS 22 for windows program where a person correlation value of 528 was obtained, this shows that between organizational culture and employee productivity at UPT SMAN 3 Wajo is in a fairly strong category and a relation coefficient (R) is obtained of 0.528 which shows that the relationship between Organizational Culture variables and employee productivity at UPT SMAN 3 Wajo is in a fairly strong category.