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Journal articles on the topic 'Apple watch for under 200'

Author: Grafiati

Published: 29 July 2024

Last updated: 31 July 2025

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1

Kwon, Sunku, Youngwon Kim, Yang Bai, Ryan D. Burns, Timothy A. Brusseau, and Wonwoo Byun. "Validation of the Apple Watch for Estimating Moderate-to-Vigorous Physical Activity and Activity Energy Expenditure in School-Aged Children." Sensors 21, no. 19 (2021): 6413. http://dx.doi.org/10.3390/s21196413.

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The Apple Watch is one of the most popular wearable devices designed to monitor physical activity (PA). However, it is currently unknown whether the Apple Watch accurately estimates children’s free-living PA. Therefore, this study assessed the concurrent validity of the Apple Watch 3 in estimating moderate-to-vigorous physical activity (MVPA) time and active energy expenditure (AEE) for school-aged children under a simulated and a free-living condition. Twenty elementary school students (Girls: 45%, age: 9.7 ± 2.0 years) wore an Apple Watch 3 device on their wrist and performed prescribed free

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Chowdhury, Samadrita, TzuAn Song, Richa Saxena, Shaun Purcell, and Joyita Dutta. "250 AI-Supported Sleep Staging from Activity and Heart Rate." Sleep 44, Supplement_2 (2021): A101. http://dx.doi.org/10.1093/sleep/zsab072.249.

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Abstract Introduction Polysomnography (PSG) is considered the gold standard for sleep staging but is labor-intensive and expensive. Wrist wearables are an alternative to PSG because of their small form factor and continuous monitoring capability. In this work, we present a scheme to perform such automated sleep staging via deep learning in the MESA cohort validated against PSG. This scheme makes use of actigraphic activity counts and two coarse heart rate measures (only mean and standard deviation for 30-s sleep epochs) to perform multi-class sleep staging. Our method outperforms existing tech

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Roomkham, Sirinthip, Michael Hittle, Joseph Cheung, David Lovell, Emmanuel Mignot, and Dimitri Perrin. "Sleep monitoring with the Apple Watch: comparison to a clinically validated actigraph." F1000Research 8 (May 29, 2019): 754. http://dx.doi.org/10.12688/f1000research.19020.1.

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Background: We investigate the feasibility of using an Apple Watch for sleep monitoring by comparing its performance to the clinically validated Philips Actiwatch Spectrum Pro (the gold standard in this study), under free-living conditions. Methods: We recorded 27 nights of sleep from 14 healthy adults (9 male, 5 female). We extracted activity counts from the Actiwatch and classified 15-second epochs into sleep/wake using the Actiware Software. We extracted triaxial acceleration data (at 50 Hz) from the Apple Watch, calculated Euclidean norm minus one (ENMO) for the same epochs, and classified

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Benning, Nils-Hendrik, Petra Knaup, and Rüdiger Rupp. "Measurement Performance of Activity Measurements with Newer Generation of Apple Watch in Wheelchair Users with Spinal Cord Injury." Methods of Information in Medicine 60, S 02 (2021): e103-e110. http://dx.doi.org/10.1055/s-0041-1740236.

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Abstract Background The level of physical activity (PA) of people with spinal cord injury (SCI) has an impact on long-term complications. Currently, PA is mostly assessed by interviews. Wearable activity trackers are promising tools to objectively measure PA under everyday conditions. The only off-the-shelf, wearable activity tracker with specific measures for wheelchair users is the Apple Watch. Objectives This study analyzes the measurement performance of Apple Watch Series 4 for wheelchair users and compares it with an earlier generation of the device. Methods Fifteen participants with suba

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Leh, Frederick O. "Siu Chuan Y. Leh, M.D. (1935-2013)." Philippine Journal of Otolaryngology-Head and Neck Surgery 28, no. 1 (2018): 43. http://dx.doi.org/10.32412/pjohns.v28i1.511.

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“When Giants Pass” Frederick O. Leh, M.D.  When giants pass, they leave giant footprints and giant shoes to fill. Dr. Leh Siu Chuan passed away last August 2013, after suffering multi-organ failure following a stroke secondary to sick sinus syndrome. As in life, he was a fighter, refusing to give up the ghost for 3 years and 3 months, living in an intensive care unit at the hospital he spent his life serving and loving.  Siu Chuan Y. Leh was born in Manila August 22, 1935, the third generation of Chinese immigrants from the Fukien Province in China. He was the sec

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Rens, Neil, Neil Gandhi, Jonathan Mak, et al. "Activity data from wearables as an indicator of functional capacity in patients with cardiovascular disease." PLOS ONE 16, no. 3 (2021): e0247834. http://dx.doi.org/10.1371/journal.pone.0247834.

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Background Smartphone and wearable-based activity data provide an opportunity to remotely monitor functional capacity in patients. In this study, we assessed the ability of a home-based 6-minute walk test (6MWT) as well as passively collected activity data to supplement or even replace the in-clinic 6MWTs in patients with cardiovascular disease. Methods We enrolled 110 participants who were scheduled for vascular or cardiac procedures. Each participant was supplied with an iPhone and an Apple Watch running the VascTrac research app and was followed for 6 months. Supervised 6MWTs were performed

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Burman, Leonard E., William G. Gale, and Jeffrey Rohaly. "Policy Watch: The Expanding Reach of the Individual Alternative Minimum Tax." Journal of Economic Perspectives 17, no. 2 (2003): 173–86. http://dx.doi.org/10.1257/089533003765888494.

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The individual alternative minimum tax (AMT) was designed in 1970 to apply reduce aggressive tax sheltering, but under current law will grow to cover tens of millions of households in the next decade. The growth occurs because the AMT is not indexed for inflation and the 2001 tax cut reduced regular income taxes but not the AMT. AMT growth is troubling because the tax has questionable effects on equity and efficiency and is inordinately complex. This paper describes the AMT, discusses economic issues related to the alternative minimum tax, and examines options for reform.

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Zhang, Jing, Li Wang, and Jingyuan Su. "The Soil Water Condition of a Typical Agroforestry System under the Policy of Northwest China." Forests 9, no. 12 (2018): 730. http://dx.doi.org/10.3390/f9120730.

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The number of mixed cropland—apple orchard system has gradually increased in the Changwu Tableland region of the Loess Plateau, China. However, the soil water content (SWC) is not sufficient to maintain the sustainable development of apple trees in this agroforestry system. It is unclear whether the growing fruit trees would compete with crops for soil water. To systematically analyze the temporal and spatial distribution of soil moisture and to understand the effect of orchard hydrology in that cropland, the SWC was measured at different depths at different locations on cropland and in an app

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Neitzel, Richard L., Lauren Smith, Linyan Wang, et al. "Toward a better understanding of nonoccupational sound exposures and associated health impacts: Methods of the Apple Hearing Study." Journal of the Acoustical Society of America 151, no. 3 (2022): 1476–89. http://dx.doi.org/10.1121/10.0009620.

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Globally, noise exposure from occupational and nonoccupational sources is common, and, as a result, noise-induced hearing loss affects tens of millions of people. Occupational noise exposures have been studied and regulated for decades, but nonoccupational sound exposures are not well understood. The nationwide Apple Hearing Study, launched using the Apple research app in November 2019 (Apple Inc., Cupertino, CA), is characterizing the levels at which participants listen to headphone audio content, as well as their listening habits. This paper describes the methods of the study, which collects

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10

Lachance, M. W., D. G. Pfeiffer, and L. F. Ponton. "Apple, Midseason Mite Control, 1990." Insecticide and Acaricide Tests 16, no. 1 (1991): 21. http://dx.doi.org/10.1093/iat/16.1.21.

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Abstract Several acaricides were compared with an untreated control in a 'Delicious' apple block at Steele's Tavern, Va. Four single-tree replicates were used in a completely randomized design. Applications were made using a truck-mounted Swanson sprayer with a handgun attachment. Treatment applications were applied when the ERM population exceeded an average of 7 mites/leaf, which occurred in the last week of Jul. Trees were sprayed on 30 Jul to the drip point (200 gal/acre). Control trees were sprayed with water. Mites were evaluated using a mite brushing machine and a single 20-leaf sample/

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Bardus, Marco, Cecile Borgi, Marwa El-Harakeh, Tarek Gherbal, Samer Kharroubi, and Elie-Jacques Fares. "Exploring the Use of Mobile and Wearable Technology among University Student Athletes in Lebanon: A Cross-Sectional Study." Sensors 21, no. 13 (2021): 4472. http://dx.doi.org/10.3390/s21134472.

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The markets of commercial wearables and health and fitness apps are constantly growing globally, especially among young adults and athletes, to track physical activity, energy expenditure and health. Despite their wide availability, evidence on use comes predominantly from the United States or Global North, with none targeting college student-athletes in low- and middle-income countries. This study was aimed to explore the use of these technologies among student-athletes at the American University of Beirut (AUB). We conducted a cross-sectional survey of 482 participants (average age 20 years)

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Yanovskyi, Y., S. Suchanov, I. Krykunov, and А. Fomenko. "Effectiveness of modern insecticides in protection of apple planting from red-headed aphides." Interdepartmental Thematic Scientific Collection of Plant Protection and Quarantine, no. 66 (December 24, 2020): 222–30. http://dx.doi.org/10.36495/1606-9773.2020.66.222-230.

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Goal. To investigate an efficacy of the insecticides Movento 100 SC (spirotetramate, 100 g/l), Sivanto Prime 200 SL (flupiradifuran, 200 g/l) and Transform WG (sulfoxaflor, 500 g/kg) on a reduction of a number and a harmfulness of red-headed or gray apple aphid (Disaphis devecta Walk.) in commercial apple orchards. Methods. A field method, in the commercial apple orchards under the conditions of educational production department of university. A type of apple trees was Golden Delicious. Planting scheme — 4.0 × 3.0 m. Year of planting — 1992. Crown shape — sparsely (improved) — tiered. Ro

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Tang, Megan, Christopher Leung, Parastou Fatemi, Atman Desai, Christy Tomkins-Lane, and Corinna Clio Zygourakis. "225 SpineTrak: The First Randomized Controlled Trial Using the Apple Watch to Objectively Track Spine Surgical Patients." Neurosurgery 70, Supplement_1 (2024): 60–61. http://dx.doi.org/10.1227/neu.0000000000002809_225.

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INTRODUCTION: Early mobilization after surgery is associated with reduced complications, shorter hospitalization, and improved psychological well-being. Current methods for evaluating spine surgery outcomes rely on subjective, patient-reported outcome measures (PROMs). Wearable activity monitors, including the Apple Watch (AW), allow for real-time tracking of objective activity metrics. METHODS: Eligibility: Adult patients undergoing elective spine surgery. Patients are randomized 1:1 to the intervention vs control group. All patients complete PROMs pre-operatively and at 6-weeks, 3-months, 6-

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Beigh, M. A., Quadri Javeed Ahmad Peer, S. K. Kher, and N. A. Ganai. "Disease and pest management in apple: Farmers' perception and adoption in J&K state." Journal of Applied and Natural Science 7, no. 1 (2015): 293–97. http://dx.doi.org/10.31018/jans.v7i1.604.

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Diseases and pests are one of the limiting factors for low productivity of the fruit crops in Kashmir valley, India. A study on management of resources with respect to disease and pest management of apple and extent of adoption of recommended plant protection technology was undertaken for increasing apple production in Kashmir valley of J and K State. District Baramulla was selected purposively on the basis of maximum area and production under apple crop. A sample size of 200 apple growers 50 each from 4 villages were selected randomly. The study revealed that the perception index regarding at

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SHARMA, Shivani, Pramod VERMA, and Naveen C. SHARMA. "Crop load management in high density apple plantation." Spanish Journal of Agricultural Research 21, no. 4 (2023): e0905. http://dx.doi.org/10.5424/sjar/2023214-20505.

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Aim of study: To optimize the best thinning method and elucidate its effect on fruit size, quality, yield and return bloom in apple under high density plantation in sub-temperate zone of India. Area of study: Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh, India. Material and methods: The experiment consisted of 30 combinations of 10 thinning (chemical and manual) treatments (T1: 10 mg L-1 NAA; T2: 20 mg L-1 NAA; T3: 100 mg L-1 BA; T4: 200 mg L-1 BA; T5: 100 mg L-1 Metamitron; T6: 200 mg L-1 Metamitron; T7: crop load of 4 fruits cm

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Klier, Kristina, Lucas Koch, Lisa Graf, Timo Schinköthe, and Annette Schmidt. "Diagnostic Accuracy of Single-Lead Electrocardiograms Using the Kardia Mobile App and the Apple Watch 4: Validation Study." JMIR Cardio 7 (November 23, 2023): e50701. http://dx.doi.org/10.2196/50701.

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Background To date, the 12-lead electrocardiogram (ECG) is the gold standard for cardiological diagnosis in clinical settings. With the advancements in technology, a growing number of smartphone apps and gadgets for recording, visualizing, and evaluating physical performance as well as health data is available. Although this new smart technology is innovative and time- and cost-efficient, less is known about its diagnostic accuracy and reliability. Objective This study aimed to examine the agreement between the mobile single-lead ECG measurements of the Kardia Mobile App and the Apple Watch 4

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Alston, D. G. "Apple, Aphid Control, 1994." Arthropod Management Tests 20, no. 1 (1995): 1. http://dx.doi.org/10.1093/amt/20.1.1.

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Abstract Two trials were conducted in a 4-yr-old mixed ‘Delicious’ and ‘Gala’ orchard with under-tree sprinkler irrigation. Guthion 50WP (1.3 lb form./acre) was applied for codling moth control on 11 May, 2 Jun, and 8 and 28 Jul. The experimental design was a randomized complete block with 5 single-tree replicates per treatment. Dilute sprays were applied to runoff with a handgun sprayer (Rears Mfg., Bend, OR) operated at 150-200 psi. Per acre rates were based on application of one gal of spray per tree or 182 gal/acre. Triton B-1956 spray adjuvant was tank-mixed with all treatments at 11.7 fl

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Mir, Lareb, Yawer Ahmad Sheikh, Raju Kumar, et al. "Effects of Calcium Nitrate Application on Essential Soil Properties in Apple Plantation Grown under High Density Planting System." Journal of Scientific Research and Reports 31, no. 2 (2025): 265–73. https://doi.org/10.9734/jsrr/2025/v31i22845.

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Calcium is an important mineral needed in the soil for the production of good quality apples. The investigation aimed to study effect of calcium nitrate soil application on some post-harvest soil properties in an apple plantation. Calcium nitrate soil application at the rate of 0 (control), 100, 200 and 300 gram per plant in two apple varieties Golden Delicious and Red Chief Camspur comprising 8 treatments with three replications were tested. Soil application of calcium nitrate increased organic carbon, cation exchange capacity, nitrogen, potassium and calcium availability with every enhanced

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Yanovskyi, Yu, S. Sukhanov, I. Krykunov, and O. Fomenko. "Effectiveness of modern insecticides in protection of apple planting from blood-red aphids." Karantin i zahist roslin, no. 2 (May 27, 2021): 28–31. http://dx.doi.org/10.36495/2312-0614.2021.2.28-31.

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Goal. To investigate an efficacy of the insecticides Movento 100 SC (spirotetramate, 100 g/l), Sivanto Prime 200 SL (flupiradifuran, 200 g/l) and Transform WG (sulfoxaflor, 500 g/ kg) on a reduction of a number and a harmfulness of blood-red aphid (Eriosoma laniqerum Hausm.), their impact on yields in commercial apple orchards. Methods. A field method, in the commercial apple orchards under the conditions of educational production department of Uman National University of Horticulture of the Ministry of Education and Science of Ukraine . A type of apple trees was Golden Delicious. Planti

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Petri, José Luiz, Caroline de Fátima Esperança, André Amarildo Sezerino, and Rosana Claudio Silva Ogoshi. "Impact of Post-flowering Chemical Thinning on the Fruit Yield and Quality Metrics in ‘Fuji Suprema’ Apple Trees." Journal of Experimental Agriculture International 47, no. 1 (2025): 472–79. https://doi.org/10.9734/jeai/2025/v47i13246.

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Under the climate variability conditions of southern Brazil, post-flowering thinning is a safer practice than thinning during flowering. This study aimed to evaluate the effect of the application of post-flowering thinning agent on ‘Fuji Suprema’ apple when used in combinations. The experiment was carried out in an experimental orchard located in the municipality of Caçador, Santa Catarina, Brazil during the 2017 to 2020 harvest seasons. We tested treatments combining Benzyladenine (BA) with Ethephon (ET) or Metamitron (MM), as well as individual applications of each product at different conce

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Hearn, Eleanor L., Jack Byford, Christopher Wolfe, et al. "Measuring Arterial Oxygen Saturation Using Wearable Devices Under Varying Conditions." Aerospace Medicine and Human Performance 94, no. 1 (2023): 42–47. http://dx.doi.org/10.3357/amhp.6078.2023.

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INTRODUCTION: Recently developed wearable monitoring devices can provide arterial oxygen saturation (Spo2) measurements, offering potential for use in aerospace operations. Pilots and passengers are already using these technologies, but their performance has not yet been established under conditions experienced in the flight environment such as environmental hypoxia and concurrent body motion.METHODS: An initial evaluation was conducted in 10 healthy subjects who were studied in a normobaric chamber during normoxia and at a simulated altitude of 15,000 ft (4572 m; 11.8% oxygen). Spo2 was measu

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Johnson, James W., and John C. Wise. "Apple, Summer Control of European Red Mites, 1991." Insecticide and Acaricide Tests 17, no. 1 (1992): 33. http://dx.doi.org/10.1093/iat/17.1.33.

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Abstract Sprays were applied to mature trees in Fennville, MI (Red-Block) at a rate of 100 gpa with an FMC 1029 airblast sprayer. Treatments were arranged in a completely randomized design of single trees replicated 4 times. Applications of all materials were made as indicated in the table on 18 Jul. Dodine, Captan, Rubigan, Nova, Ambush, Guthion, and Lannate were applied separately to all treatments. Efficacy was determined by counting ERM eggs and motile forms as well as adult ZM and AF on 50 randomly selected leaves per tree (200 leaves per treatment). Mites were brushed from leaves in a mi

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Riedl, H., and P. W. Shearer. "Apple and Pear, Effect of Stirrup M on Mite Control with Plictran, 1987." Insecticide and Acaricide Tests 13, no. 1 (1988): 31. http://dx.doi.org/10.1093/iat/13.1.31.

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Abstract Stirrup M, a spray additive for miticide applications containing pheromone components of spider mites was evaluated in 2 mite control trials on apple and pear. Sprays were applied to apple on 10 Jul and pear on 8 Jul using a handgun operating at 200 psi. Both the pear and the apple orchards used Rad mature trees and were under standard spray programs. No miticides were applied prior to the tests. The experimental design and sampling was the same in both experiments. Treatments consisted of 4 single-tree replicates. Following a pretreatment count trees were blocked according to mite po

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Flores*, Aroldo Isudro Rumayor, Jose Antonio Vázquez Ramos, Martínez Cano Andres, and Borrego Escalante Fernando. "Characterization of Apple Hybrids (Malus × domestica Bork.)." HortScience 39, no. 4 (2004): 804E—805. http://dx.doi.org/10.21273/hortsci.39.4.804e.

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In hybrids of apple (Malus × domestica Bork.) subjected to study phenological in Aguanueva, Coahuila, Mexico, their requirements of chill hours (CH), heat units (HU), bud breaking flower and vegetative % (BB) for good adaptation to warm milder climate, bloom period (BP), and vegetative period (VP), were determined using the Methodology of Identification of New Cultivars of Fruit Breeding (Ploudiv 1983). They were material with requirements of cold from 200 up to 650 (CH) when they underwent a test of controlled conditions of (CH). These materials are; AR-109 (200 CH), AR-106 (300 CH), AR-108 (

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Song, Xiaolin, Xiaodong Gao, Paul Reese Weckler, et al. "An In-Situ Rainwater Collection and Infiltration System to Improve Plant-Available Water and Fine Root Growth for Drought Resistance." Applied Engineering in Agriculture 36, no. 5 (2020): 807–14. http://dx.doi.org/10.13031/aea.13566.

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HighlightsAn in-situ rainwater collection and infiltration (RWCI) method is a rainwater catchment utilization techniqueRWCI is advantageous for increasing sustainable plant-avaibale water to increase drought resistanceRWCI significantly increased the amount of water and nutrients in the rhizosphere for uptake by apple tree rootsABSTRACT. A two-year field experiment was undertaken to determine the spatial distribution of plant-available water and roots in soil profiles under two rainfall control systems—an in-situ rainwater collection and infiltration (RWCI) method and a semi-circular basin (SC

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Johnson, James W., and John C. Wise. "Apple, Early Season European Red Mite Control, 1993." Arthropod Management Tests 19, no. 1 (1994): 26. http://dx.doi.org/10.1093/amt/19.1.26.

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Abstract Miticides were applied to mature trees in Fennville, MI (Black - Block) at a rate of 100 gpa with a FMC 1029 airblast sprayer. Treatments were arranged in a completely randomized design of single trees replicated 4 times. Applications of all materials were made as indicated in the table on 30 Apr (1/2 Green), 4 May (Tight Cluster), 7 May (Tight Cluster), 10 May (Pink), 18 May (Bloom), 1 Jun (Petal Fall), and 10 Jun (1C). Rubigan, Bayleton, Nova, Captan and Streptomycin were applied separately to all treatments. Evaluations were made on 25 May, 1, 7, 15 and 23 Jun by picking 50 randoml

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Alston, D. G. "Apple, Codling Moth Control with Dimilin, 1991." Insecticide and Acaricide Tests 17, no. 1 (1992): 1. http://dx.doi.org/10.1093/iat/17.1.1.

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Abstract Plots were located in a 10-yr-old orchard with under-tree sprinkler irrigation. The experimental design was a randomized complete block with 4 four-tree replicates. Dilute sprays were applied to runoff with a handgun sprayer operated at 200 psi and with an output rate of 3800 liters/ha. The date of first consistent CM catch as determined by pheromone traps placed in the block was 16 May. Cover sprays were timed using a temperature-driven CM model of development. First applications were timed to coincide with beginning of egg hatch. First applications of Dimilin + Guthion on 6 Jun were

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Kravchuk, O. P., V. I. Medvedev, P. G. Zhminko, et al. "Hygienic rationing of flupyradifurone and justification of safe use regulations of flupyradifurone-based insecticide to protect vineyards, apple, pear trees and cabbage." Ukrainian Journal of Modern Toxicological Aspects 87, no. 3 (2019): 5–17. http://dx.doi.org/10.33273/2663-4570-87-3-5-17.

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ABSTRACT. Flupyradifurone is an insecticide recommended to protect vineyards, apple, pear trees and cabbage in agriculture. For the state registration in Ukraine, toxicological and hygienic assessment of flupyradifurone and its insecticidal product Sivanto Prime 200 SL was performed. Acceptable daily intake of flupyradifurone for human was justified at the level of 0.02 mg/kg; hygienic standards for flupyradifurone and regulations for the safe use of insecticide Sivanto Prime 200 SL, in agriculture were developed. Objective. Toxicological and hygienic assessment of flupyradifurone and its inse

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Thomas, J., N. C. Sharma, P. Kumar, A. Chauhan, and P. Chauhan. "Effect of biostimulant and biofertilizers on soil bio-chemical properties and plant growth of apple (Malus x domestica Borkh.) nursery." Journal of Environmental Biology 43, no. 2 (2022): 276–83. http://dx.doi.org/10.22438/jeb/43/2/mrn-1934.

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Aim: To assess the effect of biostimulant and biofertilizers on soil properties and plant growth of apple nursery under eco-friendly production system. Methodology: The experiment was laid out in a randomized block design comprising 18 treatments of biostimulant, biofertilizers and their combinations. Each treatment was replicated thrice. Nursery beds of apple seedling rootstocks were prepared and Arbuscular mycorrhizal fungi, PGPR (Bacillus sp.) were applied by soil drenching method and commercial formulations of granular bio-stimulant containing humic acid (39%) + kelp extract (25%) + amino

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Samol, Alexander, Kristina Bischof, Blerim Luani, Dan Pascut, Marcus Wiemer, and Sven Kaese. "Single-Lead ECG Recordings Including Einthoven and Wilson Leads by a Smartwatch: A New Era of Patient Directed Early ECG Differential Diagnosis of Cardiac Diseases?" Sensors 19, no. 20 (2019): 4377. http://dx.doi.org/10.3390/s19204377.

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Background: Smartwatches that are able to record a bipolar ECG and Einthoven leads were recently described. Nevertheless, for detection of ischemia or other cardiac diseases more leads are required, especially Wilson’s chest leads. Objectives: Feasibility study of six single-lead smartwatch (Apple Watch Series 4) ECG recordings including Einthoven (I, II, III) and Wilson-like pseudo-unipolar chest leads (Wr, Wm, Wl). Methods: In 50 healthy subjects (16 males; age: 36 ± 11 years, mean ± SD) without known cardiac disorders, a standard 12-lead ECG and a six single-lead ECG using an Apple Watch Se

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Liang Sun Tan and Saw Hong Loh. "Dispersive Liquid-Liquid Microextraction for the Extraction of Polycyclic Aromatic Hydrocarbons in Apple Juice." Universiti Malaysia Terengganu Journal of Undergraduate Research 2, no. 2 (2020): 15–22. http://dx.doi.org/10.46754/umtjur.v2i2.109.

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Polycyclic aromatic hydrocarbons (PAHs) are hazardous and persistent organic pollutants that usually exist at low concentrations in the environment. In this study, dispersive liquid-liquid microextraction (DLLME) technique coupled with high performance liquid chromatography-fluorescence detection (HPLC-FD) was optimized for the analysis of selected PAHs, namely phenanthrene (PHE), fluoranthene (FLA) and benzo[a]pyrene (BaP) in apple juice. Under the optimal extraction conditions (the mixture of 200 µL of acetone and 50 µL of 1-octanol was applied to extract the selected PAHs for 1 min), the DL

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Hauagge, Roberto, and James N. Cummins. "Age, Growing Temperatures, and Growth Retardants Influence Induction and Length of Dormancy in Malus." Journal of the American Society for Horticultural Science 116, no. 1 (1991): 116–20. http://dx.doi.org/10.21273/jashs.116.1.116.

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Apple seedlings have a shallow dormancy, as has been observed in many other species. The length of bud dormancy in high-chilling-requirement seedlings does not reflect their genetic constitution well if dormancy is induced before they are 200 days old. Seedling populations sprayed with paclobutrazol and/or ethephon displayed bud dormancy periods resembling those of older populations of similar genetic constitution. Terminal bud formation and dormancy could not be induced by continuously exposing apple seedlings to low temperature (8 ± 1C) and short photoperiod, even after extended periods. Sto

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Brunner, Jay F., and L. O. Smith. "Apple, Pandemis Leafroller Control in Summer, 1991." Insecticide and Acaricide Tests 18, no. 1 (1993): 13–14. http://dx.doi.org/10.1093/iat/18.1.13.

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Abstract Three Bt products alone or in combination with Asana XL were evaluated for their ability to control PLR larvae during the summer. The test orchard was located at the WSU Tree Fruit Research and Extension Center in Wenatchee. Test trees were 12-year-old spur type ‘Red Delicious’ on dwarfing roots. The orchard was irrigated by under-tree sprinklers on a 14-day schedule. The test design consisted of 5- to 7-tree plots replicated 3 times in randomized complete blocks. Treatments were applied as handgun sprays at 300 psi to the point of drip, simulating a dilute spray of approximately 400

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Beers, E. H., and R. W. Browne. "Apple, European Red Mite and Two Spotted Spider Mite Control, 1992." Insecticide and Acaricide Tests 18, no. 1 (1993): 1–2. http://dx.doi.org/10.1093/iat/18.1.1a.

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Abstract This test was conducted in an orchard with trees of mixed ages near Malaga, Washington. The experimental design was randomized complete block with nine treatments and four single tree replications. All trees were treated with Asana 0.66 EC at 2 oz/100 gal, 200 gal/acre on 18 Jun to eliminate predatory mites. Blocks were based on pre-treatment counts on 30 Jun. Test materials were applied on 2 Jul. Per acre rates were based on 400 gal/acre dilute application. Treatments were applied with a handgun operated at 300 psi, sprayed to the point of drip. Population density samples were 25 lea

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Shen, Lei, Xiuyuan Wang, Tingting Liu, et al. "Apple–Soybean Mixed Stand Increased Fine Root Distribution and Soil Water Content with Reduced Soil Nitrate Nitrogen." Agronomy 13, no. 2 (2023): 548. http://dx.doi.org/10.3390/agronomy13020548.

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In dryland agroecosystems, intercropping fruit trees with legumes is often an important option for maintaining and improving soil N quality and fertility. The relationships of fine root length density (FRLD), soil water content (SWC), and soil NO3−-N content (SNC) in agroforestry systems is essential for optimal orchard management. Our objective was to understand the temporal and spatial dynamics of FRLD, SWC, and SNC in an apple–soybean intercropping system and competition between species for ecological niches. We established an orchard with soybean and apple, including monoculture apple (MA)

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Gao, Zhenchang, Qing Lin, Qinyu He, Cuihua Liu, Honghao Cai, and Hui Ni. "Rapid Detection of Spoiled Apple Juice Using Electrical Impedance Spectroscopy and Data Augmentation-Based Machine Learning." Chiang Mai Journal of Science 51, no. 5 (2024): 1–13. http://dx.doi.org/10.12982/cmjs.2024.071.

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T he demand for fresh fruit juices is increasing, however, some food processors are using spoiled fruit for juice production in order to seek higher profits. Electrical impedance spectroscopy (EIS), in combination with machine learning, enables wide applicability in food quality inspection, as it does not necessitate expensive instruments or complex sample processing. However, EIS data vary with temperature changes. The measurement of EIS data requires consistent temperature conditions. To overcome this limitation, data augmentation was applied to train the model based on EIS to improve the pe

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Wang, Laiping, Ru Chen, Zhenying Jiang, Huifeng Li, and Xiaomin Xue. "The Combined Application of Urea and Fulvic Acid Regulates Apple Tree Carbon and Nitrogen Metabolism and Improves Anthocyanin Biosynthesis." Agronomy 14, no. 9 (2024): 2062. http://dx.doi.org/10.3390/agronomy14092062.

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Improving apple peel color has been an important objective in apple production. To better understand the effect and mechanism of the combined application of urea and FA (fulvic acid) regulation of anthocyanin biosynthesis, a field experiment was performed in 2022 and 2023, respectively, under five treatments of urea + FA (CK, urea only; FA50, urea + 50 kg ha−1 FA; FA100, urea + 100 kg ha−1 FA; FA150, urea + 150 kg ha−1 FA; FA200, urea + 200 kg ha−1 FA), using isotope (13C and 15N) marking to analyze the changes in carbon (C) and nitrogen (N) nutrient distribution as well as anthocyanin biosynt

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Brunner, Jay F., and L. O. Smith. "Apple, Codling Moth Control with Sevin, 1991." Insecticide and Acaricide Tests 18, no. 1 (1993): 7–8. http://dx.doi.org/10.1093/iat/18.1.7.

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Abstract Sevin at different treatment schedules were compared to the standard rate and timing of Guthion for control of CM. The test orchard was located at the Tree Fruit Research and Extension Center, Wenatchee. Test trees were 17-year-old non-spur ‘Red Delicious’ and ‘Golden Delicious’. The orchard was irrigated by under-tree sprinklers on a 14-day schedule. The test design consisted of four single-tree replicates in a randomized complete block design. Treatments were applied with a handgun sprayer at 300 psi to the point of drip, simulating a dilute spray of approximately 400 gal/acre. In a

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Yoong, M. H., and T. M. Tengku Rozaina. "Effects of mangrove apple (Sonneratia caseolaris) fruit extract on oxidative stability of palm olein under accelerated storage." Food Research 5, no. 1 (2021): 461–70. http://dx.doi.org/10.26656/fr.2017.5(1).445.

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Palm olein is commonly used in cooking and food processing, however, it is susceptible to oxidation due to its high unsaturated fatty acids content. An antioxidant is added to the oil by oil manufacturer to inhibit lipid oxidation and increase the shelf life of the oil. However, most of the antioxidants are synthetic antioxidants that may not be safe for consumption and decomposed at high temperature during frying or processing. In this study, the antioxidant properties of mangrove apple fruit extract (MAFE), as well as the oxidative stability of palm olein with and without MAFE, were investig

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Shivran, Om Prakash, Manoj Kumar Singh, and Nikhil Kumar Singh. "Weed flora dynamics and growth response of green gram (Vigna radiata (L.) R. Wilczek) under varied agri-horti system and weed management practices." Journal of Applied and Natural Science 9, no. 3 (2017): 1848–53. http://dx.doi.org/10.31018/jans.v9i3.1451.

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Horizontal expansion of pulse production can be achieved by introduction of short duration pulse crop like, green gram (Vigna radiata (L.) R. Wilczek) under agri-horti system. Response of green gram under different agri-horti system and weed management practices is lacking. Therefore, an agronomic trial was conducted during monsoon season of 2011 at Agricultural Research Farm, Rajeev Gandhi South Campus, Banaras Hindu University, Barkachha, Mirzapur, Uttar Pradesh, in split plot design, consisting of three agri-horti systems [guava, custard apple and open field] in main plots and six weed mana

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van der Zande, Joske, Marc Strik, Rémi Dubois, et al. "Using a Smartwatch to Record Precordial Electrocardiograms: A Validation Study." Sensors 23, no. 5 (2023): 2555. http://dx.doi.org/10.3390/s23052555.

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Smartwatches that support the recording of a single-lead electrocardiogram (ECG) are increasingly being used beyond the wrist, by placement on the ankle and on the chest. However, the reliability of frontal and precordial ECGs other than lead I is unknown. This clinical validation study assessed the reliability of an Apple Watch (AW) to obtain conventional frontal and precordial leads as compared to standard 12-lead ECGs in both subjects without known cardiac anomalies and patients with underlying heart disease. In 200 subjects (67% with ECG anomalies), a standard 12-lead ECG was performed, fo

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Yanovskyi, Yu, S. Sukhanov, I. Krykunov, L. Bandura, and O. Fomenko. "Apple blister mite (Eriophyes mali Nal): pest biology and measures to prevent it harmfulness on apple orchards in Ukraine." Karantin i zahist roslin, no. 4 (December 10, 2021): 3–9. http://dx.doi.org/10.36495/2312-0614.2021.4.3-9.

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Goal. To clarify the biological features of apple blister mite (Eriophyes mali Nal) and to investigate an efficacy of the insecticides Sivanto Prime 200 SL (flupiradifuran, 200 g/l), Danadim Stable, EC (dimethoat, 400 g/l), Oberon Rapid 240 SC, (spiromezifen, 228,6 g/l + abemektin, 11,4 g/l), Fufanon 570, EC (malathion, 570 g/l) and Aktofit, EC (aversektin С, 0,2%) on a reduction of a number and a harmfulness of apple blister mite (Eriophyes mali Nal), it impact on yields in commercial apple orchards. Methods. Trials were conducted in farms of the Steppe (Zaporizhia, Dnipro, Kherson, Myk

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Brunner, J. F., and L. O. Smith. "Apple, First Generation Timing of IGR’s for Codling Moth Control, 1985." Insecticide and Acaricide Tests 11, no. 1 (1986): 4. http://dx.doi.org/10.1093/iat/11.1.4.

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Abstract Dimilin was applied at different degree day intervals after first moth was detected in pheromone traps to determine the best first cover timing of insect growth regulators (IGR) used for codling moth control. Dimilin was applied at 50 (6 May), 125 (16 May) and 200 (20 May) degree days after first moth. No second cover applications against the first generation were made in this test. The experimental design was a randomized complete block with 5 single-tree replicates per treatment. This test was conducted in a 15-year-old apple orchard with under-tree irrigation. After first generatio

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Peck, Gregory M., Preston K. Andrews, John P. Reganold, and John K. Fellman. "Apple Orchard Productivity and Fruit Quality under Organic, Conventional, and Integrated Management." HortScience 41, no. 1 (2006): 99–107. http://dx.doi.org/10.21273/hortsci.41.1.99.

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Located on a 20-ha commercial apple (Malus domestica Borkh.) orchard in the Yakima Valley, Washington, a 1.7-ha study area was planted with apple trees in 1994 in a randomized complete block design with four replications of three treatments: organic (ORG), conventional (CON), and integrated (INT). Soil classification, rootstock, cultivar, plant age, and all other conditions except management were the same on all plots. In years 9 (2002) and 10 (2003) of this study, we compared the orchard productivity and fruit quality of `Galaxy Gala' apples. Measurements of crop yield, yield efficiency, crop

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Desilets, H., S. Rochefort, J. Coulombe, S. Yelle, and J. Brodeur. "Potential of Propane Flamers for Reduction of Apple Scab Primary Inoculum on Orchard Ground." HortScience 32, no. 2 (1997): 267–70. http://dx.doi.org/10.21273/hortsci.32.2.267.

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The potential impact of propane flamers on the development and release of ascosporic inoculum of Venturia inaequalis (Cke.) Wint. from infected dead apple (Malus domestica Borkh.) leaves that overwintered on the soil of an experimental orchard was assessed. Thermal reduction of scab primary inoculum was first conducted under controlled conditions using an indoor testing facility. At the time of ascospore maturation, heavily infected leaves were submitted to temperature rises ranging from 150 to 200 °C with open-flame burners, thus reducing the number of ascospores subsequently released by 76%

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Brunner, Jay F., and L. O. Smith. "Apple, Codling Moth Control with Bacillus Thuringiensis, 1991." Insecticide and Acaricide Tests 18, no. 1 (1993): 6–7. http://dx.doi.org/10.1093/iat/18.1.6.

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Abstract Several insecticides were evaluated for control of CM when used in a seasonal spray program. The test orchard was located at the Tree Fruit Research and Extension Center, Wenatchee. Test trees were 17-year-old non-spur ‘Red Delicious’. The orchard was irrigated by under-tree sprinklers on a 14-day schedule. The test design consisted of 4 single-tree replicates in randomized complete blocks. Treatments were applied with a handgun sprayer at 300 psi to the point of drip, simulating a dilute spray of approximately 400 gal/acre. In all cases the first treatment was applied at the beginnin

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47

Abadi, Zainab Majid, Khawla Hamza Mohammed, and Aqeel Hadi Abdul Wahid. "Effect of Glutathione Treatment in Reducing the Stress of Heavy Metals and Its Effect on Some Vegetative Characteristics of Ziziphus mauritiana Lam. Apple Seedlings." IOP Conference Series: Earth and Environmental Science 1487, no. 1 (2025): 012064. https://doi.org/10.1088/1755-1315/1487/1/012064.

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Abstract The experiment was conducted in the Department of Horticulture and Landscape Engineering plant canopy, College of Agriculture, University of Basra, during the growing season 2023-2024. The aim is to know the antioxidant glutathione’s ability to reduce the effects of pollution of the apple variety Sidr seedlings with heavy elements (lead + cadmium). The experiment was designed as a factorial experiment RCBD for two factors. Two types of pollutants, namely lead and cadmium and three concentrations for each of them represented the first factor: lead (200, 100, 0 mg. L−1, cadmium (6, 3, 0

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ESPINA, L., M. SOMOLINOS, R. PAGÁN, and D. GARCÍA-GONZALO. "Effect of Citral on the Thermal Inactivation of Escherichia coli O157:H7 in Citrate Phosphate Buffer and Apple Juice." Journal of Food Protection 73, no. 12 (2010): 2189–96. http://dx.doi.org/10.4315/0362-028x-73.12.2189.

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Inactivation and sublethal injury of Escherichia coli O157:H7 cells induced by heat in citrate phosphate buffer and apple juice (both at pH 3.8) were studied, and the effect of a combined preservation treatment using citral and heat treatments was determined. Heat resistance of E. coli O157:H7 was similar in both treatment media; after 27 min at 54°C, 3 log units of the initial cell population was inactivated in both treatment media. However, under less harsh conditions a protective effect of apple juice was found. Whereas inactivation followed linear kinetics in the citrate phosphate buffer,

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Arakawa, Toshiya. "A Review of Heartbeat Detection Systems for Automotive Applications." Sensors 21, no. 18 (2021): 6112. http://dx.doi.org/10.3390/s21186112.

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Many accidents are caused by sudden changes in the physical conditions of professional drivers. Therefore, it is quite important that the driver monitoring system must not restrict or interfere with the driver’s action. Applications that can measure a driver’s heartbeat without restricting the driver’s action are currently under development. In this review, examples of heartbeat-monitoring systems are discussed. In particular, methods for measuring the heartbeat through sensing devices of a wearable-type, such as wristwatch-type, ring-type, and shirt-type devices, as well as through devices of

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Yoo, Se Eun, Young Hee Kwon, Min Jeong Lee, et al. "Evaluation of Fire Blight Resistance in Apple Rootstocks Using Artificial Inoculation of Erwinia amylovora in In Vitro Cultured Plantlets and Acclimatized Seedlings." Research in Plant Disease 31, no. 1 (2025): 62–70. https://doi.org/10.5423/rpd.2025.31.1.62.

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Fire blight, caused by <i>Erwinia amylovora</i>, is a destructive bacterial disease affecting over 200 species in the Rosaceae family, including economically significant crops such as apple, pear, apricot, and plum. It infects leaves, flowers, branches, and fruits, often leading to the complete loss of trees. Since its first outbreak in Korea in 2015, fire blight has spread to 1,044 hectares across 28 cities and counties as of 2022. With no curative treatments, current management in Korea relies on preventative measures, such as antibiotic applications before and after bloom and th

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