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In the wake of the novel coronavirus (COVID-19), many plant material such as artemisia (Artemisia vulgaris L) have received renewed attention as cheap, easy-to-make treatment for many infections. However, the proliferation of artemisia from seeds is often a lengthy process. Here we investigated the role of commercial (Indol-3-butyric acid - IBA, Natural Rooting Hormone Powder - NRHP, Apple Cider Vinegar - ACV) and cottage-made (coconut water - CW and aloe vera gel - AVG) rooting hormone, and water as control (CONT) on the proliferation of artemisia cuttings in a greenhouse experiment in 2021. The survival of artemisia cuttings did not differ significantly (P > .05) across the treatments. The highest number of stems (19) and plant height (138.0 cm) was observed from CW + AVG, and the differed significantly from the others (P < .05) from the others. AVG produced the highest number of leaves per plant (1466), followed by CW (1317), CW + AVG (1278), and IBA (1241). The leaf dry weight was highest in CW + AVG, followed by those of CW and IBA. A similar pettern was observed for the root dry weight. The findings from this study showed that cottage-made plant based (coconut water and aloe vera gel) growth hormone has comparable effect to commercially available IBA on overall performance of artemisia cuttings. This study has great implications for low-tech proliferation of artemisia.
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WHEN I (CHIARA) TOOK UP MY POSITION at Vanderbilt in 2016, I was given a one-year contract. Since I teach at a well-resourced university, there was a network of child care centers where I could enroll my child—a nice perk that many academic jobs do not include. While those with full-time or tenure-stream positions may not have had to worry about health insurance coverage or paid sick leave (Douglas-Gabriel 2020), questions continue to abound over hiring, pay freezes or cuts (Woolston 2021), parental leave policies and tenure clock extensions, as colleges and universities have scrambled to develop clear and equitable responses to the crisis. [...]the grand revelation of COVID is that, in the words of Chris Caterine, author of Leaving Academia, "All faculty are contingent.” For this reason, programs should be encouraged to work toward converting long-term contingent faculty members into tenured or tenure-track hires whenever possible, or to ensure that contingent positions have as much security and permanence as possible through the use of longer-term contracts.
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The taxonomic diversity and the richness of the region of Seraidi (North-East Algeria) in medicinal plants, as well as the appearance of diseases of viral origin, in particular, the current pandemic of SARS-CoV-2, led us to the realization of an ethnobotanical survey of plants with antiviral interests. The survey was conducted based on a pre-established quiz, with 120 people from different categories of the population of Seraidi, with the aim of listing the medicinal plants used in the treatment of viral diseases and collecting as much information as possible on this subject. After analyzing, the information provided by the people interviewed, we listed 32 species belonging to 20 families, of which the Lamiaceae family is the most represented. Older women are the most affected by the use of plants;people without a higher intellectual level have the most knowledge about the use of plants with antiviral interest. The leaf is the most widely used organ, in the form of a decoction or infusion, administered orally.
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In present manuscript describes synthesis of silver nanoparticles using turmeric leaves extract, traditional turmeric is a common spice that comes from the root of Curcuma longa, chemical called curcumin. Turmeric has a warm, bitter taste and is frequently used to flavor or color curry powders, mustards, butters, and cheeses. People commonly use turmeric for osteoarthritis, hay fever, depression, high cholesterol, liver disease, itching. There is also no good evidence to support using turmeric for COVID-19. Synthesis of silver nanoparticles AgNO powder was dissolved in distilled water to prepare 10 mM AgNO stock 3 3 solution from which different composition prepared. The AgNO solutions were mixed with urmeric plants 3 t leaves extract in equal proportion in flask. The flask was wrapped with an aluminum foil and was then heated in a water bath at 50-60 C for 2 hours. The synthesis of nanoparticles, which was confirmed by UVSpectra and TEM. UV-Vis spectra and visual observation showed that the color of the fresh leaf extractsof Vinca rosea turned into brownish yellow, respectively, after treatment with silver. In addition, TEM analysis confirmed that AgNO solutions for all concentrations produced ilver nanoparticles and their average size 3 s was less than 20 nm. Turmeric plants extract of fresh leaves can be used as bioreducing agents, drug resistant strains, toxic nature towards microbial agents, play an important role in nanoscience and nanotechnology, particularly in nanomedicine and potential applications in cancer diagnosis and therapy.
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Context. Roots and leaves have potential as feed ingredients for poultry, but antinutritional factors (ANFs), high fibre and low energy may limit their efficient utilisation. There is need to improve processing methods and diet formulation for maximum utilisation of these readily available resources and reduce feed cost. Aim. To investigate the replacement of maize with cassava root, moringa leaf meal and vegetable oil blend in finisher broiler diets. Methods. In total, 160 male broiler chickens aged 30 days were weighed and allotted randomly to 20 deep litter pens containing eight birds of similar individual weight (1500 g +/- 16.11). Four broiler finisher iso-energetic and isonitrogenous diets were formulated for the experiment. Diet 1 was based on maize and in Diets 2, 3 and 4, 15%, 30% and 45% of maize was replaced respectively, by a concentrate of cassava root meal, moringa leaf meal and vegetable oil combination (CMOC). Each diet was given to five pens in a completely randomised design for a period of 12 days. Key results. There were no significant differences in the growth parameters of birds among treatments. Except for drumsticks of birds on the 30% CMOC diet, there were no significant effects of diet on carcass components or digestive organ weights (P > 0.05). Gizzard pH was higher in the control birds than in the test groups. Feed cost per kilogram of carcass weight was significantly (P < 0.05) lower with the dietary inclusion of CMOC. Conclusion. Replacing up to 30% of the maize with CMOC is beneficial and replacement up to 45% is not detrimental. However, the economic benefits of maize replacement with CMOC need to be re-evaluated with ingredient costings less affected by the present COVID-19 pandemic. Implications. Maximum utilisation of cassava root and moringa leaf meal in the diet will reduce cost and improve income of small-to medium-holder broiler producers.
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Introduction: The accelerated spread of SARS-CoV-2 brought about a worldwide crisis, and a series of studies and recommendations to manage it. Before the pandemic, studies evidence a high prevalence of self-medication in university students. Objective: To identify the frequency and characteristics of self- medication against COVID-19 with drugs and/or medicinal plants in students of the National University of the Peruvian Amazon (UNAP), Iquitos, Loreto-Peru, during the first wave of COVID-19. Material and Methods: A descriptive cross-sectional study was conducted on 338 students using a semi-structured ad-hoc survey with questions distributed in 3 dimensions: sociodemographic characteristics, characteristics of COVID-19, and characteristics of the use of drugs/medicinal plants. Results: The mean age was 22.39 years (SD +/- 5.59), female sex predominated with 61.2 % (n=207), and 55.3 % (n=187) presented symptoms suggestive of COVID-19. In addition, 76.9% (n=260) used medication, distributed from highest to lowest 65.4% (n=170) drugs and plants, 25.8% (n= 67) only plants, and 8.8% (n=23) only drugs;79.2% (n=206) used self- medication. The main drugs used were dexamethasone, paracetamol, azithromycin, and ivermectin. The main medicinal plants used were eucalyptus, kion, chamomile, and matico. There was a probable association between self-medication and a history of symptoms suggestive of COVID-19 (p= 0.001, 95% CI), and COVID-19 contact (p=0.011, 95% CI). Conclusion: Among students of a university in the Peruvian Amazon, a high prevalence and factors associated with selfmedication with drugs and medicinal plants were identified.
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Though the COVID-19 pandemic is drawing to a close, very little is known about the impact of China's zero-COVID policy on Chinese seafarers. This paper examines Chinese seafarers' experiences of fatigue during the pandemic. It adopted a mix-method research design involving two quantitative surveys conducted with seafarers before and during the pandemic and 35 in-depth interviews with both seafarers and managers. All the participants were from two Chinese shipping companies. The comparisons between the two surveys show that Chinese seafarers experienced significantly higher levels of fatigue during the pandemic. The interview data suggest a range of factors underpinning the higher levels of fatigue including fear of being infected, increased workload, wearing of four-piece personal protection equipment (PPE), the deprivation of shore leaves, and the prolonged service time. More importantly, the data indicate that the draconian zero-COVID policy in China and the related policy guidelines for Chinese shipping companies and seafarers reinforce these factors. This research extends previous research by providing an exclusive and comprehensive examination of seafarer fatigue during the pandemic and revealing that the policies adopted by seafarers' home countries can have profound implications for seafarers' experiences of fatigue. Suggestions are provided at the end of the paper.
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The study is a review of natural raw materials that can prevent infection and help treat viral infections, including those that cause COVID-19. The condition of not getting infected with pathogens that cause infections of the upper and lower respiratory tract is high the body resistance. An important element that influences the proper immunity of the body is the diet. The functioning of the immune system is improved by bee products, and plant materials: purple coneflower herb, flower and root, licorice root, aloe gel and Baikal skullcap root, as well as black cumin seed oil, chaga mushroom, lemon balm leaves and chamomile flowers. Strengthening immunity is conducive to maintaining a good mood and reducing stress. The antiviral activity has been confirmed for many plant materials, especially those containing essential oils. Natural products can be used for prevention and treatment. The country that copes best with the coronavirus epidemic is China, thanks to a combination of academic and natural medicine. The study quotes an excerpt from the "Handbook of COVID-19 Prevention and Treatment", prepared by Chinese doctors, with particular attention to the recipes used by them.
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Over the past two years, there have been many popular press articles about grief in the workplace. Despite this recent COVID-19-related attention, bereavement (i.e., the reaction to a loss by death) has always been a universal human experience. The intention of this short concept statement is to bring attention to and spur HRM research efforts on bereavement in the workplace. Part of the challenge in dealing with bereavement is the empathy-efficiency paradox - the perception that workplace goals often conflict with the needs of bereaved employees. After providing an overview of bereavement, I explain how this potential paradox can make bereavement more difficult-not only for bereaved employees, but for managers and coworkers as well-with formal policies and practices unintentionally disenfranchising grief. I also suggest some ways to address this perceived paradox. Subsequently, several generative research directions are suggested. Given the large role that HRM plays in making the workplace more humane, bereavement seems like a topic worthy of our research attention. (PsycInfo Database Record (c) 2023 APA, all rights reserved)
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Research shows that while inhaling gas and air (Entonox) in labour is safe for mothers and babies, long-term cumulative exposure may carry health risks. Work notice The right to strike The UK government's Strikes (Minimum Service Levels) Bill is, at the time of going to press, at the committee stage in the House of Lords (the first chance for line-by-line examination). Visit bit.ly/ Clementine-register Working mums Maternity leave Careers After Babies research has found that of 848 mothers interviewed, 98% want to return to work after having a child but just 13% can make it work full-time, citing the cost of childcare and lack of flexibility from businesses as the reason. Find out more at hegenbergermedical.com/training Research Healthy eating support Researchers at the University of Hertfordshire are calling for better information on diet and nutrition to be made available to expectant parents.
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In recent years, on-site visitation has been strictly restricted in many scenic areas due to the global spread of the COVID-19 pandemic. "Cloud tourism”, also called online travel, uses high-resolution photographs taken by unmanned aerial vehicles (UAVs) as the dominant data source and has attracted much attention. Due to the differences between ground and aerial observation perspectives, the landscape elements that affect the beauty of colored-leaved forests are quite different. In this paper, Qixia National Forest Park in Nanjing, China, was chosen as the case study area, and the best viewpoints were selected by combining tourists' preferred viewing routes with a field survey, followed by a scenic beauty evaluation (SBE) of the forests with autumn-colored leaves in 2021 from the aerial and ground perspectives. The results show that (1) the best viewpoints can be obtained through the spatial overlay of five landscape factors: elevation, surface runoff, slope, aspect, and distance from the road;(2) the dominant factors influencing the beauty of colored-leaved forests from the aerial perspective are terrain changes, forest coverage, landscape composition, landscape contrast, the condition of the human landscape, and recreation frequency;and (3) the beauty of the ground perspective of the colored-leaved forests is strongly influenced by the average diameter at breast height (DBH), the dominant color of the leaves, the ratio of the colored-leaved tree species, the canopy width, and the fallen leaf coverage. The research results can provide scientific reference for the creation of management measures for forests with autumn-colored leaves. © 2023 by the authors.
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Dendrobium sulcatum Lindl or "Ueang Jampa-Nan” (Orchidaceae family) is widely dis-tributed in Thailand and Laos. It is classified in the genus Dendrobium, which is used in both traditional Chinese medicine and Ayurvedic medicine for health enhancement and anti-aging. The purpose of this study was to investigate the phytochemical constituents and bioefficacy of stems, leaves and flowers from D. sulcatum for cosmetic and cosmeceutical applications. Phenolic and flavonoid contents were tested for the phytochemical evaluation. The antioxidant (DPPH, FRAP and ABTS assays), anti-lipid peroxidation, antiglycation, anti-inflammatory and anti-tyrosinase properties were assessed for their bioefficacy. The results showed that the extracts of stem and leaf had higher total phenolic content than that of the flower, and the leaf extract had the highest flavonoid content. The antioxidant, anti-lipid peroxidation and anti-inflammatory activities of the extracts were greater in those from the stem and leaf compared with that of the flower. The leaf extract exhibited the greatest antiglycation property. The results of anti-tyrosinase analysis of the extracts showed that the leaf and flower exhibited potent activities with a percentage inhibition greater than 70% (at a concentration of 50 µg/mL). In conclusion, these findings suggest that the ethanolic extracts from different parts of D. sulcatum are promising sources of natural active ingredients for further cosmetic and cosmeceutical products.
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In-silico Computer-Aided Drug Design (CADD) significantly relies on cybernetic screening of Plant Based Natural Products (PBNPs) as a prime source of bioactive compounds/ drug leads due to their unique chemical structural scaffolds and distinct functional characteristic features amenable to drug design and development. In the Post-COVID-Era a large number of publications have focused on PBNPs. Moreover, PBNPs still remain as an ideal source of novel therapeutic agents of GRAS standard. However, a well-structured, in-depth ADME/Tox profile with deeper dimensions of PBNPs has been lacking for many of natural pharma lead molecules that hamper successful exploitation of PBNPs. In the present study, ADMET-informatics of Octadecanoic Acid (Stearic Acid - SA) from ethyl acetate fraction of Moringa oleifera leaves has been envisaged to predict ADMET and pharmacokinetics (DMPK) outcomes. This work contributes to the deeper understanding of SA as major source of drug lead from Moringa oleifera with immense therapeutic potential. The data generated herein could be useful for the development of SA as plant based natural product lead (PBNPL) for drug development programs.
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Disease detection in plants is essential for food security and economic stability. Unmanned aerial vehicle (UAV) imagery and artificial intelligence (AI) are valuable tools for it. The purpose of this review is to gather several methods used by our peers recently, hoping to provide some knowledge and assistance for researchers and farmers so that they can employ these technologies more advantageously. The studies reviewed in this paper focused on Scab detection in Rosaceae family fruits. Feature extraction, segmentation, and classification methods for processing the UAV-obtained images and detecting the diseases are discussed briefly. The advantages and limitations of diverse kinds of UAVs and imaging sensors are also explained. The widely applied methods for image analysis are machine learning (ML)-based models, and the extensively used UAV platforms are rotary-wing UAVs. Recent technologies that cope with challenges related to disease detection using UAV imagery are also detailed in this paper. Some challenging issues such as higher costs, limited batteries and flying time, huge and complex data, low resolution, and noisy images, etc., still require future consideration. The prime significance of this paper is to promote automation and user-friendly technologies in Scab detection.
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Declines in eelgrass, an important and widespread coastal habitat, are associated with wasting disease in recent outbreaks on the Pacific coast of North America. This study presents a novel method for mapping and predicting wasting disease using Unoccupied Aerial Vehicle (UAV) with low‐altitude autonomous imaging of visible bands. We conducted UAV mapping and sampling in intertidal eelgrass beds across multiple sites in Alaska, British Columbia, and California. We designed and implemented a UAV low‐altitude mapping protocol to detect disease prevalence and validated against in situ results. Our analysis revealed that green leaf area index derived from UAV imagery was a strong and significant (inverse) predictor of spatial distribution and severity of wasting disease measured on the ground, especially for regions with extensive disease infection. This study highlights a novel, efficient, and portable method to investigate seagrass disease at landscape scales across geographic regions and conditions.Alternate abstract:Plain Language SummaryDiseases of marine organisms are increasing in many regions worldwide, therefore, efficient time‐series monitoring is critical for understanding the dynamics of disease and examining its progression in time to implement management interventions. In the first study of its kind, we use high‐resolution Unoccupied Aerial Vehicle (UAV) imagery collected to detect disease at 12 sites across the North‐East Pacific coast of North America spanning 18 degrees of latitude. The low altitude UAV visible‐bands imagery achieved 1.5 cm spatial resolution, and analysis was performed at the seagrass leaf scale based on object‐oriented image analysis. Our findings suggest that drone mapping of coastal plants may substantially increase the scale of disease risk assessments in nearshore habitats and further our understanding of seagrass meadow spatial‐temporal dynamics. These can be scaled up by searching for environmental signals of the pathogen, for example, with surveillance of wastewater for signs of Covid in human populations. This application could easily apply to other areas to construct a high‐resolution monitoring network for seagrass conservation.
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The closure of the British Library during the 2020–2021 COVID-19 pandemic allowed the conservation department to undertake a treatment review of the conservation of palm leaf manuscripts in order to make better-informed decisions about the treatment of these complex objects. As part of the review a questionnaire was posted in 2020 to the Global Conservation Forum asking about the treatment of palm leaf manuscripts by others in the field. This two-part Literature Review uses the available literature and the survey results to address the wide range of issues inherent in the practical conservation of palm leaf materials. Part 1 began with an historic overview of palm leaf manuscripts and their production, leaf preparation methods, manuscript materials and media, palm leaf manuscripts at the British Library and the common types of damage found in such manuscripts. Part 2 details historic treatments and current conservation techniques as informed by our review and survey, as well as storage, religious and ethical issues. It concludes with two decision-making flowcharts, and our practical recommendations for conservators. The authors wish to share the collated information as widely as possible and help create greater continuity and consistency in palm leaf manuscript conservation by presenting recommendations for best practice for conservators who treat these amazing objects.Alternate abstract:Résumé« Une revue littéraire de la restauration des manuscrits sur feuilles de palmier—Partie 2: traitements de conservation historiques et actuels, conditionnement et stockage, questions religieuses et éthiques, recommandations pour les meilleures pratiques »La fermeture de la British Library lors de la pandémie de Covid-19 2020–2021 a permis au département de la restauration d'entreprendre un recensement des traitements de conservation des manuscrits sur feuilles de palmier afin de prendre des décisions plus éclairées sur le traitement de ces objets complexes. Dans le cadre du recensement, un questionnaire fut posté en 2020 sur le Forum international de la conservation comprenant des questions sur le traitement des manuscritssur feuilles de palmier réalisé par d'autres personnes dans ce domaine. Cette revue de la littérature en deux parties exploite la littérature disponible et les résultats de l'enquête pour aborder le large éventail de problèmes inhérents à la conservation matérielle des matériaux en feuilles de palmier. La partie 1 a commencé par un aperçu historique des manuscrits sur feuilles de palmier et de leur production, des méthodes de préparation des feuilles, des matériaux et supports manuscrits, des manuscrits sur feuilles de palmier à la British Library et des altérations courantes rencontrées dans ces manuscrits. La partie 2 détaille les anciens traitements et les techniques de conservation actuelles que nous avons observées et qui ont été exprimées dans notre enquête, ainsi que les problèmes de stockage, les questions religieuses et éthiques. Il se termine par deux organigrammes de prise de décision et nos recommandations pratiques pour les restaurateurs. Les auteurs souhaitent partager les informations rassemblées aussi largement que possible et aider à créer une plus grande continuité et cohérence dans la conservation des manuscrits sur feuilles de palmier en présentant des recommandations de bonnes pratiques pour les restaurateurs qui traitent ces objets étonnants.
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Policy debates about whether wages and benefits from work provide enough resources to achieve economic self-sufficiency rely on data for workers, not working families. Using data from the Current Population Survey, we find that almost two-thirds of families working full time earn enough to cover a basic family budget, but that less than a quarter of low-income families do. A typical low-income full-time working family with wages below a family budget would need to earn about $11.00 more per hour to cover expenses. This wage gap is larger for black, Hispanic, and immigrant families. Receipt of employer-provided benefits varies—health insurance is more prevalent than pension plans—and both are less available to low-income families, and black, Hispanic, and immigrant working families. Findings suggest that without policies to decrease wage inequality and increase parents' access to jobs with higher wages and benefits, child opportunity gaps by income, race-ethnicity, and nativity will likely persist.
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Various kinds of field crops growing on two commercial farms in the Whitehorse area of the southern Yukon Territory were surveyed for diseases in summer 2020 by staff of the Agriculture Branch of the Government of Yukon. They included barley, wheat, canola, beets, broccoli, cabbage, carrots, potatoes and turnips. Fields were visited one or more times during July and August. The incidence and severity of diseases were visually assessed on a crop-by-crop basis and samples were collected for laboratory analysis of the pathogens present, if any. Both infectious and non-infectious diseases were present on most crops. The infectious diseases were caused by various species of plant pathogenic bacteria and fungi that were common on these crops growing in other areas of Canada. INTRODUCTION AND METHODS: The 2020 field crop disease survey is believed to be the first organized study of its kind on agricultural crops in the Territory. In his book, "An Annotated Index of Plant Diseases in Canada . . . ", I.L. Conners lists over 300 records of plant diseases on trees, shrubs, herbs and grasses in the Yukon that were published by individuals who were surveying forests and native vegetation mainly for federal government departments, universities and other agencies (Conners 1967). The objectives of the 2020 survey were: (1) to determine the kinds and levels of diseases on selected Yukon crops, (2) to identify the major pathogen species attacking Yukon crops, and (3) to use the results to plan future surveillance activities aimed at helping producers to improve their current disease management programs. All of the fields included in the 2020 survey were situated on two commercial farms, which were designated as Farm #1 and #2, in the Whitehorse area in the southern Yukon (Fig. 1). The crops surveyed included cereals (barley and wheat), oilseeds (canola) and vegetables (beets, broccoli, cabbage, carrots, potatoes and turnips). Fields were visited one or more times in the mid- to late growing season (July/August) at a time when damage from diseases was most noticeable. Symptoms were visually assessed on a crop-by-crop basis by determining their incidence and severity. Incidence was represented by the percentage of plants, leaves, heads, kernels, etc., damaged in the target crop, while severity was estimated to be the proportion of the leaf, fruit, head, root/canopy area, etc., affected by a specific disease as follows: Proportion of the canopy affected based on a 0-4 rating scale, where: 0 = no disease symptoms, 1 = 1-10% of the crop canopy showing symptoms;2 = 11-25% showing symptoms, 3 = 26- 50% showing symptoms, and 4 = > 50% showing symptoms. Photographs of affected plants were taken and sent to plant pathologists across Western Canada for their opinions on causation. Where possible, representative samples of plants with disease symptoms were packaged and sent to the Alberta Plant Health Lab (APHL) in Edmonton, AB for diagnostic analyses. Background information, such as the general cultural practices and cropping history, was obtained from the producers wherever possible. GPS coordinates were obtained for each field to enable future mapping Cereals: Individual fields of barley (11 ha) and wheat (30 ha) located at Farm #1 were surveyed. The barley was a two-row forage cultivar 'CDC Maverick', while the wheat was an unspecified cultivar of Canada Prairie Spring (CPS) Wheat. Plant samples were taken along a W-shaped transect for a total of five sampling points for the barley field (< 20 ha) and ten sampling points for the wheat field (> 20 ha). The first visit, which occurred on July 30, involved visual inspection and destructive sampling wherein plants were collected and removed from the field for a detailed disease assessment at a lab space in Whitehorse. There, the roots were rinsed off and the plants were examined for disease symptoms. The second visit to these fields, which occurred on August 27, only involved visual examination of the standing crop. Oilseeds: A single 40 ha field of Polish canola (cv. 'Synergy') was examined o
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Severe acute respiratory syndrome type 2 caused by coronavirus 2 is responsible for SARS that led to the emergence of coronavirus disease 2019 (COVID-19). Recent studies have demonstrated a high correlation between secondary bacterial infections and worse outcomes and death in COVID-19 patients. The extensive use of medicines during the last SARS-CoV epidemic led to an increase in the prevalence of multi-drug-resistant germs. Nanoparticles have important characteristics and applications in health, industry, and applied fields, etc. In medical fields, they curb and stop antibiotic-resistant diseases and pathogens. In this study, strawberry leaf extract was used to synthesize copper nanoparticles. The benefits of copper nanoparticles in inhibiting the growth of Pseudomonas aeruginosa and S. aureus bacteria isolated from COVID-19 patients' sputum were tested using the agar well diffusion method. P. aeruginosa and S. aureus bacteria play a significant part in the series of bacterial infections that arise with COVID-19 infection. (1 ml) of strawberry leaf extract was mixed with (50 ml) of copper chloride solution prepared at a concentration of 2 mM at room temperature. The mixture was blended for 7 h to produce copper nanoparticles with a concentration of 2 mM as a stock solution in an environment-friendly manner. The first indication of the production of copper nanoparticles was the increase in the color intensity of the mixture after 7 h. The nanoparticles were detected using UV spectrophotometers, and a scanning electron microscope SEM, XRD, FTIR, and UV-VIS spectral, which appeared at the absorbance of two absorptive peaks, namely: 299 and 804 nm. UV-VIS spectral examination was conducted after a month and was very intense. It also showed two absorbance peaks (300 and 805 nm) with increasing intensity. This is evidence of the insolubility of the nanomaterial and its stability over the month. The scanning electron microscopy results showed that the dimensions of the prepared copper nanoparticles ranged between (46.59 and 58.82 nm). The production of copper nanoparticles in this inexpensive and environmentally friendly biological way has given excellent results in inhibiting the growth of bacteria isolated from COVID-19 patients. The effectiveness of copper nanoparticles was tested against cancerous cells isolated from laryngeal carcinoma, called HeP-2, of a 60-year-old man. The concentration of 50% of the copper nanoparticle solution, which is equivalent to 0.5 mM, gave an inhibition rate of 44.081% in cell cultures. Its effect was compared with the sensitivity of the normal cell line of liver cells (WRL-68);the concentration of 50%, which is equivalent to 0.5 mM, gave an inhibition rate of 5.997% in cell cultures, which showed a good affinity for copper nanoparticles. From this, we conclude that the copper nanoparticles were more effective in inhibiting cancerous cell lines than the normal ones. © 2023 University of Kerbala.
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The CUPA-HR Higher Education Employee Retention Survey was piloted in May 2022. The survey was created to better understand the segment of the higher ed workforce that is at risk for leaving their current jobs, why these employees are considering leaving, and what higher ed institutions can implement to increase retention and improve the higher ed workplace. The survey was targeted to all higher ed employees who are not faculty -- administrators, professionals, and non-exempt staff. There were 3,815 respondents from 949 institutions. Findings from the survey included: 1) more than half of higher ed employees are at least somewhat likely to look for other employment in the next year, mostly because they desire a pay increase, 2) higher ed institutions are not providing the remote work opportunities and flexibility that employees want, 3) employees are working longer hours and taking on more responsibilities since the COVID-19 pandemic started, 4) employees are dissatisfied with opportunities for career development and advancement, recognition for their work, and parental leave and dependent care policies. Recommendations for increasing retention include remedying these areas of dissatisfaction wherever possible.