12137 research outputs found
Sort by
Governors State University Board of Trustees Executive Committee, Video Recording October 10th, 2023 Pt 1
No full textGovernors State University Fast Facts - Fall 2023
Get PDFEnrollment and demographic statistics of students enrolled at Governors State University - Fall Term 2023
Smart Attendance GUI Application
Get PDFThe Smart Attendance GUI Application presents a cutting-edge approach to simplify attendance monitoring in workplaces and educational settings. This innovative solution incorporates face recognition technology to automate attendance, ensuring accuracy and efficiency. In situations where face recognition may not be suitable, the application offers a manual attendance entry option. The user-friendly graphical interface caters to individuals with varying technical proficiency, facilitating easy navigation. Beyond attendance tracking, the application includes features such as student registration, instructor data management, and an alert system to communicate attendance-related information to students. The utilization of this tool streamlines attendance tracking, making the process straightforward and trouble-free
Essentials of Statistics for the Behavioral Sciences: A Problem-Solving Approach
No full textWritten for students studying in a variety of social and health science areas, The Essentials of Behavioral Statistics: A Problem-Solving Approach is designed to give each student a conceptual understanding of the basic statistical procedures used in behavioral sciences, as well as the computational skills to carry them out and embed statistics in the research process. It separates out what type of questions that each type of statistic can address and provides instructions on completing the analysis manually or with the assistance of SPSS Statistical Software®.https://opus.govst.edu/fac/1253/thumbnail.jp
The Response of Nutrient Cycle, Microbial Community Abundance and Metabolic Function to Nitrogen Fertilizer in Rhizosphere Soil of Phellodendron Chinese Schneid Seedlings
No full textNitrogen (N) as an essential macronutrient affects the soil nutrient cycle, microbial community abundance, and metabolic function. However, the specific responses of microorganisms and metabolic functions in rhizosphere soil of Phellodendron chinense Schneid seedlings to N addition remain unclear. In this study, four treatments (CK, N5, N10 and N15) were conducted, and the soil physicochemical properties, enzyme activities, microbial community abundances and diversities, metabolism, and gene expressions were investigated in rhizosphere soil of P. chinense Schneid. The results showed that N addition significantly decreased rhizosphere soil pH, among which the effect of N10 treatment was better. N10 treatment significantly increased the contents of available phosphorus (AP), available potassium (AK), ammonium nitrogen (NH4+-N), nitrate nitrogen (NO3−-N) and sucrase (SU) activity, as well as fungal diversity and the relative expression abundances of amoA and phoD genes in rhizosphere soil, but observably decreased the total phosphorus (TP) content, urease (UR) activity and bacterial diversity, among which the pH, soil organic matter (SOM), AP, NH4+-N and NO3−-N were the main environmental factors for affecting rhizosphere soil microbial community structure based on RDA and correlation analyses. Meanwhile, N10 treatment notably enhanced the absolute abundances of the uracil, guanine, indole, prostaglandin F2α and γ-glutamylalanine, while reduced the contents of D-phenylalanine and phenylacetylglycine in rhizosphere soil of P. chinense Schneid seedlings. Furthermore, the soil available nutrients represented a significant correlation with soil metabolites and dominant microorganisms, suggesting that N10 addition effectively regulated microbial community abundance and metabolic functions by enhancing nutrient cycle in the rhizosphere soil of P. chinense Schneid seedlings.https://opus.govst.edu/fac/1188/thumbnail.jp
Novel ZnFe2O4/BC/ZnO Photocatalyst for High-efficiency Degradation of Tetracycline Under Visible Light Irradiation
No full textDeveloping broad-spectrum light reactions, effective charge separation, and easily recoverable photocatalysts were considered cost-effective pollution remediation methods. The ZnFe2O4/BC/ZnO composite was prepared to achieve these objectives, where biochar (BC) was used as a conductive channel and ZnFe2O4 as a magnetic substance. Among them, the 0.6-ZBO composite performed the best, with photocatalytic removal of tetracycline (TC) reaching 85.6%. The photocatalytic degradation rated constant of 0.6-ZBO composite was 23.36 × 10−3 min−1, which was 7.6, 4.1, and 2.5 times higher than that of ZnFe2O4/BC, ZnO, and ZnFe2O4/ZnO samples, respectively. According to several characterization data, it was demonstrated that successful Z-scheme heterojunctions were constructed between ZnFe2O4 and ZnO. The 0.6-ZBO complex increased the range of light absorption and strengthened the separation of electron-hole pairs, thus improving the redox ability of the complex. In the different water matrices, the stability of 0.6-ZBO was excellent and its ability to remove TC decreased slightly to about 11% after 5 cycles. This work provided a valuable approach to design a novel and efficient system for degrading organic pollutants in wastewater using magnetic biochar.https://opus.govst.edu/fac/1186/thumbnail.jp
Soil Nutrients, Enzyme Activities, and Microbial Communities along a Chronosequence of Chinese Fir Plantations in Subtropical China
No full textForests undergo a long-term development process from young to mature stages, yet the variations in soil nutrients, enzyme activities, microbial diversity, and community composition related to forest ages are still unclear. In this study, the characteristics of soil bacterial and fungal communities with their corresponding soil environmental factors in the young, middle, and mature stages (7, 15, and 25-year-old) of Chinese fir plantations (CFP) in the subtropical region of China were investigated in 2021. Results showed that the alpha diversity indices (Chao1 and Shannon) of soil bacteria and fungi were higher in 15 and 25-year-old stands than in 7-year-old stand of CFP, while the soil pH, soil water content, soil organic carbon, total nitrogen, total phosphorus, sucrase, urease, acid phosphatase, catalase, and microbial biomass carbon, nitrogen, and phosphorus showed higher in 7-year-old stand than other two stands of CFP. The nonmetric multidimensional scaling analysis revealed that the soil microbial species composition was significantly different in three stand ages of CFP. The redundancy and canonical correspondence analysis indicated that the soil urease and microbial biomass nitrogen were the main factors affecting soil bacterial and fungal species composition. Our findings suggested that soil microbial diversity and community structure were inconsistent with changes in soil nutrients and enzyme activities during CFP development, and enhancing stand nurturing and soil nutrient accumulation in the mid-development stage were beneficial to the sustainable management of CFP.https://opus.govst.edu/fac/1179/thumbnail.jp
Book Review: Combat Death in Contemporary American Culture: Popular Cultural Conceptions of War Since World War II by Agnieszka Soltysik Monnet
No full texthttps://opus.govst.edu/fac/1290/thumbnail.jp
Ecological Stoichiometry of N and P across a Chronosequence of Chinese Fir Plantation Forests
No full textEcological stoichiometry is crucial in understanding nutrient dynamics and its impact on plant growth and development at various ecological scales. Among the different nutrients, nitrogen (N) and phosphorus (P) have been widely recognized as key elements regulating substance transport, energy utilization, and ecosystem conversion. The N:P ratio in plants serves as a sensitive indicator of ecological processes, reflecting the availability and balance of these nutrients. Therefore, studying the ecological stoichiometry of N and P is essential for accurately assessing soil fertility and site productivity, particularly in forest ecosystems with low-fertility soils. In this study conducted in Huitong, Hunan province, southern China, the contents of N and P, as well as the N:P ratios, were investigated in plant-soil systems across four different aged stands of Chinese fir forests (3-, 8-, 18-, and 26-year-old stands). The results revealed varying concentrations of N and P in soils and foliage across the different plantations. Soil N concentrations increased by approximately 4%, 30%, and 22% in 8-, 18-, and 26-year-old plantations compared to the 3-year-old plantation. Soil P concentration was significantly higher in 8-, 18-, and 26-year-old plantations compared to the 3-year-old plantation. The average soil N:P ratio followed the order of 3-year-old plantation \u3e 18-year-old plantation \u3e 26-year-old plantation \u3e 8-year-old plantation. Regarding foliage, both N and P contents exhibited a similar pattern across the different aged leaves, with current-year-old leaves having higher concentrations than 1-year-old, 2-year-old, and 3-year-old leaves in all four Chinese fir plantations. The study further established relationships between soil and foliage nutrient ratios. Soil N:P ratio was positively correlated with soil N content but negatively associated with soil P content. The foliage N:P ratio also showed a significant negative correlation between leaf N and foliage P content. These findings suggest that soil nutrient conditions improved with the aging of Chinese fir plantations, mainly due to increased inputs of above- and below-ground litter. Overall, this study provides valuable insights into the ecological stoichiometry of N and P in Chinese fir plantations, offering a scientific basis for sustainable forest management practices in southern China.https://opus.govst.edu/fac/1181/thumbnail.jp
