Abstract Accurate and high-resolution crop yield water productivity (CWP) datasets are required to understand predict spatiotemporal variation in agricultural production capacity; however, for maize wheat, two key staple dryland crops China, currently lacking. In this study, we generated evaluated a long-term data series, at 1-km resolution of CWP wheat across based on the multiple remotely sensed indicators random forest algorithm. Results showed that MOD16 products an accurate alternative...

Effective estimation of crop yields at a regional scale holds significant importance in facilitating decision-making within the agricultural sector, thereby ensuring grain security. However, traditional ground-based measurement techniques suffer from inefficiencies, and there exists need for reliable, precise, effective method estimating rice yields. In this study, we employed four machine-learning techniques: partial least squares regression (PLSR), support vector (SVR), random forest...

The accurate estimation of regional crop yields holds significant importance for optimizing subsequent resource allocation and maximizing economic returns in agriculture. Crop yield can be effectively estimated by assessing the overall growth status through long-term remote sensing observations. However, most previous studies have relied on data from one or a few periods estimation, thus lacking comprehensive description entire growth. Furthermore, past algorithms not considered their...

Background/Aims: Previous studies have shown that oxidative damage is a main contributor to disc nucleus pulposus (NP) cell apoptosis. Aquaporin-3 (AQP-3) facilitates reactive oxygen species (ROS) scavenging and thus alleviates injury in other cells. This study aims investigate the role mechanism of AQP-3 regulating NP apoptosis under damage. Methods: Rat cells were treated with H2O2 for 48 hours, while control free H2O2. Recombinant lentiviral vectors used effect enhanced expression levels...

In this study, the impacts of groundwater level on nitrate nitrogen accumulation in vadose zone a cotton field were investigated. Experiments conducted at CAS Ecological Agricultural Experiment Station Nanpi from 2008 to 2010. A vertical observation well was drilled, and time-domain reflectometry probes soil solution extractors installed every 50 cm walls depth 5 m. The water content monitored, samples obtained analyzed six days throughout growing seasons during three studied years....

Osteoporosis (OP) is an age‑related bone disease occurring worldwide. Osteoporotic fracture one of the leading causes disability and death in elderly patients. MicroRNAs (miRNAs/miRs) are key molecular regulatory factors remodeling processes. The present study investigated expression mechanism miR‑135b‑5p patients with osteoporosis. results suggested that was upregulated tissue fragments osteoporosis compared control MC3T3‑E1 cells were used to perform osteogenic differentiation induction....

Shortages of water resources and labor make it urgent to improve irrigation efficiency automation. To respond this need, study demonstrates the development an adaptive border system. The inflow is adjusted based on functional relationship between advance time deviation optimal adjustment rate, thereby avoiding real-time calculation infiltration parameters required by traditional control systems. During process, rate automatically only observation points. proposed system greatly simplifies...

Insufficient water resources restrict wheat production in the North China Plain, so it is urgent and essential to improve border irrigation performance use efficiency. This study developed a predesigned varied-discharge scheme closed-ended border. Field treatments, including continuous-discharge (CD), increased-discharge (ID) decreased-discharge (DD) tests, were conducted evaluate of proposed scheme. The DD treatment had great application efficiency (AE), distribution uniformity (DU)...

Knee osteoarthritis (KOA) is one of the most commonly encountered degenerative diseases joints in people over 45 years age. Currently, there are not any effective therapeutics for KOA,and only end-point strategy total knee arthroplasty (TKA); therefore, KOA associated with economic burdens and societal costs. The immune inflammatory response involved occurrence development KOA. We previously established a mouse model using type II collagen. Hyperplasia synovial tissue was present model,...

Biochar is generally available to absorb nitrogen, phosphorus and other pollutants improve water quality. However, the feasibility of biochar in improving quality deterioration after straw returning still unclear. In this study, pot experiments were conducted evaluate effects decomposition on total (TP), ammonium nitrogen (NH4+-N), nitrate (NO3−-N) potassium permanganate index (CODMn) under CK (no returning), ST (straw 7 t/hm2 returning) SC 20 conditions. Results showed that could...

The zero-inertia model is widely used for simulating surface flow in irrigation systems. This accurate when inflow discharge constant. However, simulation of systems with rapidly varied needed due to the development real time control technology. Hence, objective this study validate discharge. For purpose, twenty-three border tests at a range changes on different field slopes and roughness coefficients were conducted. Then, sensitivity analyses bed slope, infiltration parameters, coefficient...

The aim of the present study was to investigate expression cell division cycle gene 2 (CDC2) in osteosarcoma tissues and its clinical significance. Specimens cancer tissues, paracancerous serum from 47 patients hospitalized at Department Orthopedics Third Affiliated Hospital Sun Yat-sen University (Guangzhou, China) January, 2010 2015 35 normal subjects were collected. CDC2 mRNA evaluated using quantitative polymerase chain reaction (RT-PCR) relationship between protein features with...

To study the effects of straw return and aeration water layer on oxygen redox status in column at different depths paddy field soil, a short-term incubation experiment was conducted with four treatments: (1) no (NS); (2) without (S); (3) 30 minutes per day (SO30); (4) 90 (SO90). Compared to NS, S decreased dissolved (DO) potential (ORP) by 23–58% 47–53 mV, respectively, increased active reducing substance (ARS) 21–46% soil layers. The treatments DO ORP 25–120% 11–86 reduced ARS 5–16%...

Soil compaction was largely studied in different scenarios with laboratory and field scale experiments, various soil conditions traffic intensities. However, a detailed analysis to better understand the protective role of plant residues or cover crop mulch is still required. A test conducted Northeast Italy aiming fill this gap. Rye chosen as winter crop, growth on controlled random block experimental field. Four treatments were compared study effects root systems: roller crimper, flail...

Winter irrigation is important for wheat in meeting crop water requirements spring, but it alters soil moisture dynamics and affects N2O production emission. To assess the effects of winter on emissions a field, an situ experiment was conducted from 1 October 2019 to March 2020 with one control treatment (CK) five levels quantities (irrigated 60%, 70%, 80%, 90%, 100% holding capacity, namely WHC60–WHC100, respectively). The results showed that had impact emission peaks were not investigated...

The shortage of water resources makes it urgent to increase agricultural irrigation efficiency. In response this need, study develops a real-time adaptive control (RACI) system for border irrigation. Avoiding the need traditional systems calculate soil infiltration properties in real-time, RACI adjusts inflow rate based on difference between actual and expected advance time. Simulations collected data are used evaluate analyze sensitivity input parameters, field experiments were carried out...

The variability of natural parameters in border fields is one the main factors leading to poor irrigation performance. To explore impact parameter variation on performance, a four-year field experiment was conducted this study, and obtained were combined with WinSRFR V4.1 model simulate advance–recession process under different discharge scenarios. Based observed simulated data, influence flow constant analyzed, thus optimal observation points for advancing regulation strategy further...

Seeding quality affect seeds germination, plant spacing, and final yield. The performance of the seeding unit ensures crop yield by keeping seed spacing sowing depth uniformity. Therefore, it is essential to use reliable machines during planting, which could cause varying emergence, especially in poor soil conditions. In our study, seeders was estimated using result on two types units used for corn sunflower. shows that with optimized shock absorber structure has better under unfavourable...

Abstract Background Volar locked plate for distal radius fracture is one of the common procedures performed in trauma surgery. There are already some factors which can be used to predict functional outcome after volar plating fracture. However their limitations caused that outcomes couldn’t satisfactorily predicted. Better predicting prognosis more precisely great interest. The aim this study introduce such a new factor. Methods A total 56 patients suffered from unilateral were managed...

Improving the simulation accuracy of advance distance based on method characteristics is essential to develop numerical solutions for simulating surface irrigation. Instead volume balance in traditional (T-MC), position critical flow determined simulate improved (I-MC), which used border irrigation systems with rapid variation inflow discharge current research. Specifically, zones both subcritical and supercritical were firstly distinguished determine point, was also upstream boundary...

Surface irrigation under different techniques is evaluated in this research, based on water applying method, infiltration depth, and use efficiency.For that purpose, field experiments were conducted using cotton grown silt loam soil at Wuqiao Eco-Agricultural Experimental Station 2015 season.To evaluate the distribution conventional continuous inflow comparison to increased discharge decreased blockedend furrows, nine treatments applied.They are known as flow (CFI), (DDI) (IDI).In DDI IDI...