Grammatical and Syntactical Functions of Auxiliaries in English and Urdu

The current study investigates grammatical and syntactical functions of auxiliaries in Urdu and English to draw certain distinctions regarding the behavior, syntactic representation and semantic content auxiliaries add to the main verbs (Vs) through the X-bar theory as a theoretical framework within the minimalist program (MP). The data of the current research were collected from authentic sources (Urdu and English text books and grammars) to consider a diverse range of possible usage of Urdu and English auxiliaries. 200 sentences extracted from textbooks and grammars were analyzed grammatically in terms of morphology, and syntax (through tree-representation and their movement). The findings indicate sharp differences related to the syntactic position of auxiliaries in Urdu and English. In Urdu, auxiliaries always occupy their position after the main verbs in a sentence and their position is fixed and also have the ability to mark number (singular & plural) and gender (masculine & feminine). In contrast, English auxiliaries can only mark number. Another sharp difference is observed in the question formation process. In Urdu, unlike English, auxiliaries cannot be moved from its latent position towards the specifier position at the beginning of the sentence to construct question structures, because, if it happens, the sentence is considered ungrammatical which may result in the violation of MP. The findings of the study would prove helpful for understanding the semantic, grammatical and syntactical nature and behavior of auxiliaries comparatively in Urdu and English

Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries

Abstract Background Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres. Methods This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries. Results In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia. Conclusion This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries

Variability of Direct Seeded Rice Cultivars in Growth, Productivity and Kernel Quality under Different Seeding Depths

Optimum seeding depth is essential to attain the maximum production potential of a cultivar. To examine the effect of various planting depths in coarse and fine aromatic rice under direct seeding, pot and field studies were executed at University of Agriculture, Faisalabad during kharif 2012. Experiment was comprised of two rice cultivars viz., super basmati (fine aromatic rice) and KSK-133 (coarse rice) which were sown at various seeding depths viz., 2, 3, 4 and 5 cm using randomized complete block design (RCBD) under factorial arrangement of treatments replicated three times. Results indicated that stand establishment attributes were statistically affected by seeding depth. Increasing seeding depth resulted in low performance of all the yield related parameters. At seeding depth of 3 cm, leaf area indices, leaf area duration, crop growth rate, total dry matter accumulation and net assimilation rate of coarse and fine rice were improved. Likewise, significantly higher yield and its related components were recorded, when crop was sown at seeding depth of 3 cm. This treatment furnished kernel yields of 5.08 and 4.23 t ha-1 in coarse and fine aromatic rice, respectively, which were significantly higher than rest of treatments. Furthermore, at same depth kernel quality was also improved in terms of lower number of sterile, opaque and chalky kernels. Nonetheless, Water absorption ratio was also higher in these kernels. As for kernels protein content concerned it was decreased with increasing seeding depth. It is concluded that sowing at seeding depth of 3 cm for direct seeded coarse and fine rice cultivars is beneficial in terms of better stand establishment, normal growth, higher yield and improved quality of rice crop

Measuring Levels of Students' Anxiety in Information Seeking Tasks

This study measured information seeking anxiety among postgraduate students of the University of the Punjab, Lahore. Survey method using questionnaire was employed to conduct this investigation. The questionnaire consisting of an Information Seeking Anxiety Scale and demographic variables was administered in students, selected through convenient sampling procedure, for data collection. The results indicated that a large majority (n=207, 82.4%) of the respondents experienced more than low anxiety in the information seeking process. No significant relationship was found between age, gender, faculty and information seeing anxiety scores of these students. Conversely, there were significant differences in anxiety scores of students based on the program of study, stage of study, and computer proficiency. The results provide useful insights for guidance of information professionals dealing with reference and research services, especially those engaged in designing information literacy curricula and managing information literacy instructions

Impact of Personal Digital Devices Usage on Academic Performance of University Students in Pakistan

This study aims to determine the impact of using personal digital devices (PDDs) on university students’ academic performance. A survey-based questionnaire was developed and used to collect data from 240 Masters students of final semester (16-years of education) enrolled in the Faculty of Economics and Management Sciences, University of the Punjab, Lahore selected by proportional stratified sampling technique. The study concluded that the smart phones, mobile phones, laptops were frequently used PDDs by the students for the academic purposes. Students used PDDs for using social networks like Facebook, WhatsApp, Twitter, etc. in order to stay in touch with their classmates regarding their academic needs. It was found that using PDDs helped them improve their English language skills and PDDs also helped in their learning process hence improving their classroom performance. However, the use of PDDs also would divert students’ attention in classroom. The use of PDDs facilitated students in their academic achievements and class room performance by improving the writing skills, their CGPAs/ Grades, and clearing their concepts. It would help the university management play an important role in encouraging their students to use their PDDs positively so they could improve their academic performance and learning

Evaluation of Different Shallow Groundwater Tables and Alfalfa Cultivars for Forage Yield and Nutritional Value in Coastal Saline Soil of North China

Freshwater shortage and soil salinization are the major constraints for alfalfa (Medicago sativa L.) growth in coastal salt–alkali soil of North China. In this study, we analyzed the effects of shallow groundwater tables and alfalfa cultivars on forage yield and nutritional value. A field simulation experiment was conducted during the growing season of 2019–2021 with three groundwater depths (80, 100, and 120 cm) and five alfalfa cultivars (Magnum 551, Phabulous, Zhongmu No. 1, Zhongmu No. 3, and WL525HQ) under subsurface pipe systems. Alfalfa forage was harvested six times in total during the growing season. Results revealed significant variation among alfalfa cultivars for forage yield at each shallow groundwater depth. The greatest forage yield was recorded in cultivar Phabulous (32.2 and 35.9 t ha−1 in 2020 and 2021) when planted at 100 cm shallow groundwater depth. Forage yield during the first harvest was 24.6–25.7%, exhibiting the highest ratio of the total annual yield. The effects of shallow groundwater depth, cultivar, and their interaction were significant (p < 0.01) on the turn-green ratio of alfalfa. Cultivar Zhongmu No. 1 had the highest turn-green ratio at the 100 cm groundwater depth, while cultivar WL525HQ showed the lowest turn-green ratio at each groundwater depth. Moreover, crude protein (CP), neutral detergent fiber (NDF), and acid detergent fiber (ADF) content were also significantly affected by shallow groundwater depth, cultivars, and their interaction at different harvests. Cultivars Magnum551, Zhongmu No. 1, Zhongmu No. 3, and Phabulous furnished the highest CP, while cultivar WL525HQ performed the poorest in terms of CP in this study. These results propose that planting the cultivar Phabulous at a groundwater depth of 100 cm could be a suitable agronomic practice for alfalfa forage production in the coastal salt–alkali area of North China

A Root Density Tradeoff in an Okra-Assisted Subsurface Pipe Drainage System for Amelioration of Saline Soil

Subsurface pipe drainage technology can effectively improve coastal saline land in Northern China. We explored an okra (Abelmoschus esculentus L.)-assisted subsurface pipe drainage system to improve the water and salt discharge performance and benefits. In this study, the simulation box experiment was conducted to research the response of water and salt discharge performance in subsurface pipe drainage to okra root weight density (RWD). The drain outflow, soil salinity, and sodium adsorption ratio were determined. The results showed that okra RWD affected the vertical distribution of okra roots. Okra with an appropriate RWD (about 116 μg·cm−3) could significantly increase the cumulative drain outflow. Okra with an appropriate RWD (about 136 μg·cm−3) could significantly increase the desalting effect. Moreover, the RWD of okra also influenced the ability of subsurface pipe drainage to inhibit soil alkalization. The above results show that planting okra and installing subsurface pipe drainage to control drainage at the coastal saline land in Northern China can effectively improve the water and salt drainage effect when okra RWD is about 116–136 μg·cm−3. When using subsurface pipe drainage to improve coastal saline soils, planting okra with proper density may be an appropriate choice to improve the effect and benefit

Dynamics of Spring Regrowth and Comparative Production Performance of 50 Autumn-Sown Alfalfa Cultivars in the Coastal Saline Soil of North China

Alfalfa (Medicago sativa L.) production is affected by many factors, including management practices, soil conditions, and the environmental elements of the target area. Varietal differences, in terms of agronomic performance and forage yield, among 50 alfalfa cultivars under six harvest systems following regrowth were evaluated during the growing season of 2019&ndash;2020 under non-irrigated rainfed conditions in a coastal saline-alkali soil region of North China. Days to harvesting, plant height, canopy area, growth rate, and forage yield were assessed to rank the cultivars. Furthermore, the key factor influencing the regrowth of the second year after over-wintering was identified based on the growth status before over-wintering by using the Boston Matrix method. Results showed significant (p &lt; 0.05) differences among cultivars and harvests regarding plant height, canopy area, and forage yield. Alfalfa forage yield ranged between 24.2 t ha&minus;1 yr&minus;1 and 32.7 t ha&minus;1 yr&minus;1. The highest forage yield was obtained in cultivar Guochan No.1, and was lowest in cultivar Magnum 601. Forage yield reached the greatest values for the first harvest, and then decreased gradually and changed stably. The forage yield of the third, fourth, fifth, and sixth harvest ranged from 3.4 t ha&minus;1 to 4.3 t ha&minus;1 (averaged across 50 cultivars), which represented 10.8% to 15.2% of the annual total forage production. We also observed that forage yield correlated strongly, but negatively, with the growth rate. According to subordinate function value analysis, Womu No.1, WL440HQ, Weston, Surprise, and WL354HQ proved optimum cultivars for general cultivation in this coastal area. In future, development of alfalfa cultivars with improved regrowth and tolerance to heavy saline-alkali soil and early spring drought would be necessary to increase forage yield under rainfed conditions in coastal saline-alkali areas of North China

Silencing of Chemosensory Protein Gene NlugCSP8 by RNAi Induces Declining Behavioral Responses of Nilaparvata lugens

Chemosensory proteins (CSPs) play imperative functions in chemical and biochemical signaling of insects, as they distinguish and transfer ecological chemical indications to a sensory system in order to initiate behavioral responses. The brown planthopper (BPH), Nilaparvata lugens Stål (Hemiptera: Delphacidae), has emerged as the most destructive pest, causing serious damage to rice in extensive areas throughout Asia. Biotic characteristics like monophagy, dual wing forms, and annual long-distance migration imply a critical role of chemoreception in N. lugens. In this study, we cloned the full-length CSP8 gene from N. lugens. Protein sequence analysis indicated that NlugCSP8 shared high sequence resemblance with the CSPs of other insect family members and had the typical four-cysteine signature. Analysis of gene expression indicated that NlugCSP8 mRNA was specifically expressed in the wings of mated 3-day brachypterous females with a 175-fold difference compare to unmated 3-day brachypterous females. The NlugCSP8 mRNA was also highly expressed in the abdomen of unmated 5-day brachypterous males and correlated to the age, gender, adult wing form, and mating status. A competitive ligand-binding assay demonstrated that ligands with long chain carbon atoms, nerolidol, hexanal, and trans-2-hexenal were able to bind to NlugCSP8 in declining order of affinity. By using bioinformatics techniques, three-dimensional protein structure modeling and molecular docking, the binding sites of NlugCSP8 to the volatiles which had high binding affinity were predicted. In addition, behavioral experiments using the compounds displaying the high binding affinity for the NlugCSP8, revealed four compounds able to elicit significant behavioral responses from N. lugens. The in vivo functions of NlugCSP8 were further confirmed through the testing of RNAi and post-RNAi behavioral experiments. The results revealed that reduction in NlugCSP8 transcript abundance caused a decrease in behavioral response to representative attractants. An enhanced understanding of the NlugCSP8 is expected to contribute in the improvement of more effective and eco-friendly control strategies of BPH

Enhanced Photoactivity and Hydrogen Generation of LaFeO₃ Photocathode by Plasmonic Silver Nanoparticle Incorporation

A plasmonic LaFeO₃–Ag (LFO-Ag) photocathode was synthesized by incorporating Ag nanoparticles to excite surface plasmon resonances (SPRs) for enhanced light harvesting to drive photoelectrochemical (PEC) hydrogen evolution. The Ag nanoparticles were modeled using finite difference time domain (FDTD) simulations, and the results show an optimal dimension of 50–80 nm for SPR enhancement. Nanostructured LFO films were prepared by a novel and inexpensive spray pyrolysis method, and the Ag nanoparticles were dispersed uniformly on to the films by simple spin coating method. The LFO-Ag photocathode exhibited strong light absorption capability and high current density, twice that of its untreated counterpart. This subsequently led to enhanced PEC hydrogen evolution, doubling the volume of hydrogen generated compared to untreated LFO. The enhancement is ascribed to the strong SPR effect and the synergy between the Ag nanoparticles and nanostructured LFO photocathode