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Influences of etiology and endoscopic appearance on the long-term outcomes of gastric antral vascular ectasia

World Journal of Clinical Cases 2022年第18期10卷 6050-6059页

作者： Hyo Jin Kwon Si Hyung lee joon Hyun Cho Division of Gastroenterology and Hepatology Department of Internal MedicineYeungnam University College of MedicineDaegu 42415South Korea

BACKGROUND Gastric antral vascular ectasia(GAVE)has diverse associations and presumed causes,which include liver cirrhosis,chronic kidney disease,and autoimmune *** heterogeneity of underlying disorders suggests that the pathogenesis of GAVE may be *** To compare the clinical features and long-term outcomes of GAVE according to endoscopic patterns and *** The medical records and endoscopic images of 23 consecutive patients diagnosed with GAVE by endoscopy at Yeungnam University Hospital from January 2006 to December 2020 were retrospectively *** were allocated to cirrhosis(16 patients)and non-cirrhosis groups(7 patients).GAVE subtypes,as determined by endoscopy,were categorized as punctate(a diffuse,honeycomb-like appearance,17 patients)or striped(a linear,watermelon-like appearance,6 patients).RESULTS All GAVE patients with cirrhosis(16/16,100%)had a punctate pattern by endoscopy,whereas the majority of patients(6/7,85.7%)without cirrhosis had a striped pattern(Pleeding(10/23,43%)was significantly more common in the non-cirrhosis group than in the cirrhosis group(6/7,85.7%vs 4/16,25.0%;P=0.019),and more common in the striped group than in the punctate group(5/6,83.3%vs 5/17,29.4%;P=0.052).However,mean numbers of admissions due to GAVE bleeding and argon plasma coagulation(APC)sessions to address overt bleeding were similar in the cirrhosis and non-cirrhosis groups and in the punctate and striped *** patients with GAVE bleeding were successfully treated by APC,and no patient died from GAVE-related blood loss during a median follow-up of 24 *** Punctate-type GAVE is strongly associated with liver cirrhosis,and GAVE patients without cirrhosis tend to be more prone to overt ***,the presence of cirrhosis and endoscopic patterns did not influence long-term clinical courses or outcomes in cases of overt bleeding.

关键词： Gastric antral vascular ectasia Cirrhosis Endoscopy Gastrointestinal bleeding Argon plasma coagulation

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Parallel Iterative FEM Solver with Initial Guess for Frequency Domain Electromagnetic Analysis

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Intelligent Automation & Soft Computing 2023年第5期36卷 1585-1602页

作者： Woochan lee Woobin Park Jaeyoung Park Young-joon Kim Moonseong Kim Department of Electrical Engineering Incheon National UniversityIncheon22012Korea Department of Computer Engineering Hongik UniversitySeoul04066Korea Department of Electronic Engineering Gachon UniversitySeongnam13120Korea Department of IT Convergence Software Seoul Theological UniversityBucheon14754Korea

The finite element method is a key player in computational electromag-netics for designing RF(Radio Frequency)components such as *** frequency-domain analysis is fundamental to identify the characteristics of the *** the conventional frequency-domain electromagnetic analysis using FEM(Finite Element Method),the system matrix is complex-numbered as well as indeﬁ*** iterative solvers can be faster than the direct solver when the solver convergence is guaranteed and done in a few ***,such complex-numbered and indeﬁnite systems are hard to exploit the merit of the iterative *** is also hard to beneﬁt from matrix factorization techniques due to varying system matrix parts according to ***,it is hard to adopt conventional iterative solvers even though the system matrix is sparse.A new parallel iterative FEM solver for frequency domain analysis is implemented for inhomogeneous waveguide structures in this *** this implementation,the previous solution of the iterative solver of Matlab(Matrix Laboratory)employ-ing the preconditioner is used for the initial guess for the next step’s solution *** overlapped parallel stage using Matlab’s Parallel Computing Toolbox is also proposed to alleviate the cold starting,which ruins the convergence of early steps in each parallel *** experiments based on waveguide structures have demonstrated the accuracy and efﬁciency of the proposed scheme.

关键词： Computational electromagnetics numerical simulation ﬁnite element method parallel processing iterative solvers

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Clinical outcomes of endoscopic resection of superficial nonampullary duodenal epithelial tumors: A 10-year retrospective, single-center study

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World Journal of Gastrointestinal Surgery 2022年第4期14卷 329-340页

作者： joon Hyun Cho Ki Young Lim Eun Jung lee Si Hyung lee Division of Gastroenterology and Hepatology Department of Internal MedicineYeungnam University College of MedicineDaegu 42415South Korea

BACKGROUND Although premalignant duodenal lesions such as adenomas are uncommon,the incidences of these lesions have increased in recent times,and thus,the demand for minimally invasive treatments such as endoscopic resection(ER)has also ***,ER in the duodenum is more challenging than ER in other locations of the gastrointestinal *** To evaluate the safety and efficacy of ER for superficial nonampullary duodenal epithelial tumors(SNADETs)METHODS We performed a retrospective observational study on 56 consecutive patients(58 lesions)diagnosed with SNADETs that underwent ER from January 2011 to December 2020 at Yeungnam University *** demographics,lesion characteristics,and procedural and technical data were collected,and clinical outcomes,including procedure-related complications,completeness of resection,and recurrence were *** Median patient age was 57 years[range,26–77,30(53.6%)men].Endoscopic mucosal resection(EMR)was performed on 57 lesions(98.3%)and snare polypectomy on one(1.7%).Lesions consisted of 52 adenomas with low-grade dysplasia(89.7%),3 adenomas with high-grade dysplasia(5.2%),and 3 intramucosal adenocarcinomas(5.2%).There were 16 cases of intraprocedural bleeding(27.6%)and 1 case of delayed bleeding(1.7%),and all these 17 cases were successfully managed *** perforation or procedure-related death *** lesion size was associated with an increased risk of EMR-related bleeding(P=0.033).During a median follow-up period of 23 mo(range 6–100 mo),no local recurrence occurred,despite the fact one-third of the patients(19 lesions,32.8%)underwent piecemeal resection and 3 patients(3 lesions,5.2%)that underwent en bloc resection had a pathologically determined positive lateral *** patient died from a primary duodenal *** The majority of SNADETs can be safely and curatively resected by EMR,and thus,based on consideration of the high incidence of fatal complications attribut

关键词： Duodenum Adenoma Endoscopic mucosal resection Endoscopic resection Superficial nonampullary duodenal epithelial tumor

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Effects of acupuncture stimulation on brain activation induced by cue-elicited alcohol craving

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Neural Regeneration Research 2022年第5期17卷 1059-1064页

作者： Hyeok Gyu Kwon Seong Hun Choi joon Ho Seo Chae Ha Yang Mi Young lee Department of Physical Therapy College of Health ScienceEulji UniversityGyeonggiRepublic of Korea Department of Anatomy and Histology College of Oriental MedicineDaegu Haany UniversityGyeongsanRepublic of Korea Department of Rehabilitation Gyeongbuk Regional Rehabilitation HospitalGyeongsanRepublic of Korea Department of Physiology College of Korean MedicineDaegu Haany UniversityDaeguRepublic of Korea Department of Physical Therapy College of Biomedical ScienceDaegu Haany UniversityGyeongsanRepublic of Korea

Acupuncture has been shown to be effective on alcohol use ***,the underlying mechanism remains poorly *** investigate the effects of Shenmen(HT7)acupoint on brain activation induced by cue-elicited alcohol craving,30 right-handed healthy light to moderate alcohol drinkers were recruited from the *** were randomly assigned to undergo acupuncture either at HT7(experimental acupoint,n=15)or Jingqu(LU8,control acupoint,n=15)*** randomized controlled study was performed in Daegu Haany University and Daegu-Gyeongbuk Medical Innovation Foundation,Republic of *** and data collection were conducted from December 2018 to May *** results showed that after acupuncture at HT7 acupoint,the activation of orbitofrontal cortex and dorsolateral prefrontal cortex was greatly increased,while the activation of dorsolateral prefrontal cortex was obviously reduced,and subject's craving for alcohol was reduced when he/she seeing alcohol-related video clips involving various alcohols(beer,wine,or soju)or drinking *** at HT7 more greatly reduced subject's alcohol cravings than acupuncture at LU8 *** findings suggest that acupuncture can improve the self-control of mild to moderate social drinkers through the activation of the orbitofrontal cortex and dorsolateral prefrontal cortex,thereby reducing the craving for *** study protocol was approved by the Institutional Review Board of Daegu Haany University Korean Medicine Hospital,Republic of Korea(approval ***-D-18026-PRO-02)on November 30,2018.

关键词： acupuncture addiction alcohol brain activation craving cue functional MRI Shenmen(HT7)acupoint

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Obesity is an important determinant of severity in newly defined metabolic dysfunction-associated fatty liver disease

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Hepatobiliary & Pancreatic Diseases International 2022年第3期21卷 241-247页

作者： Ji Hye Huh Kwang joon Kim Seung Up Kim Bong-Soo Cha Byung-Wan lee Division of Endocrinology and Metabolism Department of Internal MedicineHallym University Sacred Heart HospitalAnyang 14068Korea Division of Geriatrics Department of Internal MedicineYonsei University College of MedicineSeoul 03722Korea Division of Endocrinology and Metabolism Department of Internal MedicineYonsei University College of MedicineSeoul 03722Korea Institute of Gastroenterology Department of Internal MedicineYonsei University College of MedicineSeoul 03722Korea

Background: The recently proposed definition of metabolic dysfunction-associated fatty liver disease(MAFLD) is based on the co-existence of hepatic steatosis with other metabolic disorders, including obesity and metabolic risk abnormalities such as hyperglycemia, high blood pressure and dyslipidemia. This study aimed to assess MAFLD severity according to the presence of metabolic abnormalities and obesity. Methods: Using transient elastography, hepatic steatosis and fibrosis severity were assessed by measuring the controlled attenuation parameter and liver stiffness measurement. A total of 1163 patients with MAFLD were categorized into the following four groups according to metabolic risk abnormalities and obesity presence: non-obese without metabolic risk abnormality group(Group 1;reference group);nonobese with metabolic risk abnormality group(Group 2);obese without metabolic risk abnormality group(Group 3);and obese with metabolic risk abnormality group(Group 4). A multiple logistic regression analysis was performed to determine severe hepatic steatosis and fibrosis risk in each group in both unadjusted and adjusted models. Results: In the adjusted model, the odds ratios(ORs) [95% confidence interval(CI)] for severe hepatic steatosis in Groups 2, 3, and 4 were 1.07(0.61-1.88), 2.43(1.44-4.08), and 4.07(2.56-6.48), respectively( P trend < 0.001). For liver fibrosis, compared with Group 1, Group 2 showed no significant increases in OR, whereas Groups 3 and 4(obese groups) showed significant increases(OR = 4.70, 95% CI: 1.24-17.82 and OR = 6.43, 95% CI: 1.88-22.02, respectively). Conclusions: Obesity, rather than metabolic abnormality, is the principal determinant of severe hepatic steatosis and fibrosis in patients with MAFLD.

关键词： Metabolic dysfunction-associated fatty liver disease Metabolically-healthy obesity Liver fibrosis

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Absorption characteristics of new solvent based on a blend of AMP and 1,8-diamino-p-menthane for CO_2 absorption

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Journal of Environmental Sciences 2012年第5期24卷 897-902页

作者： sang-Sup lee Seong-Man Mun Won-joon Choi Byoung-Moo Min sang-Won Cho Kwang-joong Oh Department of Environmental Engineering Chungbuk National University Department of Environmental Engineering Pusan National University Corporate R&D Institute Fuel Cell System Development Team Doosan Heavy Industries & Construction Greenhouse Gas Research Center Korea Institute of Energy Research Department of Energy and Environment Korea Polytechnic VII College

Aqueous 1,8-diamino-p-menthane （KIER-C3） and commercially available amine solutions were tested for CO2 absorption. A 2-amino-2-methyl-1-propanol （AMP） solution with an addition of KIER-C3 showed 9.3% and 31.6% higher absorption rate for CO2 than the AMP solution with an addition of monoethanolamine （MEA） and ammonia （NH3）, respectively. The reaction rate constant for CO2 absorption by the AMP/KIER-C3 solution was determined by the following equation： k2,AMP/C3 = 7.702×106 exp （-2248.03/T）. A CO2 loading ratio of the AMP/KIER-C3 solution was also 2 and 3.4-times higher than that of the AMP/NH3 solution and the AMP/MEA solution, respectively. Based on the experimental results, KIER-C3 may be used as an excellent additive to increase CO2 absorption capability of AMP.

关键词： carbon dioxide absorption rate and capacity 1 8-diamino-p-menthane 2-amino-2-methyl-1-propanol

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Recent advances in soft electronic materials for intrinsically stretchable optoelectronic systems

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Opto-Electronic Advances 2022年第8期5卷 21-49页

作者： Ja Hoon Koo Huiwon Yun Woongchan lee Sung-Hyuk Sunwoo Hyung joon Shim Dae-Hyeong Kim Center for Nanoparticle Research Institute for Basic Science(IBS)Seoul 08826Republic of Korea School of Chemical and Biological Engineering Institute of Chemical ProcessesSeoul National UniversitySeoul 08826Republic of Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea.

In recent years,significant progress has been achieved in the design and fabrication of stretchable optoelectronic *** general,stretchability has been achieved through geometrical modifications of device components,such as with serpentine interconnects or buckled ***,the local stiffness of individual pixels and the limited pixel density of the array have impeded further advancements in stretchable ***,intrinsically stretch-able optoelectronics have been proposed as an alternative ***,we review the recent advances in soft elec-tronic materials for application in intrinsically stretchable optoelectronic ***,we introduce various intrinsically stretchable electronic materials,comprised of electronic fillers,elastomers,and surfactants,and exemplify different in-trinsically stretchable conducting and semiconducting *** also describe the processing methods used to fabricate the electrodes,interconnections,charge transport layers,and optically active layers used in intrinsically stretch-able optoelectronic ***,we review representative examples of intrinsically stretchable optoelectronic devices,including light-emitting capacitors,light-emitting diodes,photodetectors,and ***,we briefly discuss intrinsically stretchable integrated optoelectronic systems.

关键词： stretchable optoelectronics light-emitting capacitors light-emitting diodes photodetectors photovoltaics intrinsically stretchable devices

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Comparative effectiveness of combined antiplatelet treatments in acute minor ischaemic stroke

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Stroke & Vascular Neurology 2022年第1期7卷 13-21页

作者： Shina Kim joon-Tae Kim Ji Sung lee Beom joon Kim Jong-Moo Park Kyusik Kang Soo Joo lee Jae Guk Kim Jae-Kwan Cha Dae-Hyun Kim Tai Hwan Park sang-Soon Park Kyung Bok lee Jun lee Keun-Sik Hong Yong-Jin Cho Hong-Kyun Park Byung-Chul lee Kyung-Ho Yu Mi Sun Oh Dong-Eog Kim Wi-Sun Ryu Jay Chol Choi Jee-Hyun Kwon Wook-Joo Kim Dong-Ick Shin Sung-Il Sohn Jeong-Ho Hong Man-Seok Park Kang-Ho Choi Ki-Hyun Cho Juneyoung lee Hee-joon Bae Department of Neurology Chonnam National University HospitalChonnam National University Medical SchoolGwangjuKorea Clinical Research Center Asan Institute for Life SciencesAsan Medical CenterUniversity of Ulsan College of MedicineSeoulKorea Department of Neurology Cerebrovascular CenterSeoul National University Bundang HospitalSeongnamKorea Department of Neurology Uijeongbu Eulji Medical CenterEulji University School of MedicineUijeongbu-siKorea Department of Neurology Nowon Eulji Medical CenterEulji UniversitySeoulKorea Department of Neurology Eulji University HospitalEulji UniversityDaejeonKorea Department of Neurology Dong-a UniversityBusanKorea Department of Neurology Seoul Medical CenterSeoulKorea Department of Neurology Soonchunhyang University HospitalSeoulKorea Department of Neurology Yeungnam University HospitalDaeguKorea Department of Neurology Inje University Ilsan Paik HospitalInje University College of MedicineGoyangKorea Department of Neurology Hallym University Sacred Heart HospitalAnyangKorea Department of Neurology Dongguk University Ilsan HospitalGoyangKorea Department of Neurology Jeju National University HospitalJeju National University School of MedicineJejuKorea Department of Neurology University of Ulsan College of MedicineUlsanKorea Department of Neurology Chungbuk National University HospitalCheongjuKorea Department of Neurology Keimyung University Dongsan Medical CenterDaeguKorea Department of Biostatistics Korea University College of MedicineSeoulKorea

Background No study has thoroughly compared the effectiveness of combined antiplatelet treatments(other than clopidogrel–aspirin)versus clopidogrel–aspirin or aspirin alone for early secondary prevention in acute ischaemic *** We identified patients with acute,minor,non-cardiogenic ischaemic stroke treated with aspirin alone,clopidogrel–aspirin or other combination *** scores considering the inverse probability of treatment weighting were used to adjust for baseline *** primary outcome was the composite of all strokes(ischaemic or haemorrhagic),myocardial infarction and all-cause mortality at 3 *** Among 12234 patients(male:61.9%;age:65.5±13 years)who met the eligibility criteria,aspirin,clopidogrel–aspirin and other combination treatments were administered in 52.2%,42.9%and 4.9%of patients,*** the crude analysis,the primary outcome event at 3 months occurred in 14.5%of the other combination group,14.4%of the aspirin group and 13.0%of the clopidogrel–aspirin *** the weighted Cox proportional hazards analysis,the 3-month primary outcome event occurred less frequently in the clopidogrel–aspirin group than in the other combination group(weighted HR:0.82(0.59–1.13)),while no association was found between the aspirin group(weighted HR:1.04(0.76–1.44))or other combination group and the 3-month primary *** Other combined antiplatelet treatment,compared with aspirin alone or clopidogrel–aspirin,was not associated with reduced risks of primary composite vascular events or recurrent stroke during the first 3 months after ***,the results suggest that other combination treatments,particularly the cilostazol-based combination,may not be effective alternatives for clopidogrel–aspirin to prevent early vascular events in patients with acute minor *** exploration in clinical trials will be needed.

关键词： prevention treatment alone

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Snail acetylation by autophagy-derived acetyl-coenzyme A promotes invasion and metastasis of KRAS-LKB1 co-mutated lung cancer cells

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Cancer Communications 2022年第8期42卷 716-749页

作者： Jang Hee Han Yong Keon Kim Hakhyun Kim Jooyoung lee Myung joon Oh sang Bum Kim Minjee Kim Kook Hwan Kim Hyun Ju Yoon Myung-Shik lee John D.Minna Michael A.White Hyun Seok Kim Severance Biomedical Science Institute Yonsei University College of MedicineSeoul 03722Korea Department of Medical Science Yonsei University Graduate SchoolSeoul 03722Korea Department of Urology Seoul National University HospitalSeoul 03722Korea Checkmate Therapeutics Inc. Seoul 07207Korea Hamon Center for Therapeutic Oncology Research University of Texas Southwestern Medical CenterDallasTexas 75390USA Department of Cell Biology University of Texas Southwestern Medical CenterDallasTexas 75390USA Graduate School of Medical Science Brain Korea 21 ProjectYonsei University College of MedicineSeoul 03722Korea

Background: Autophagy is elevated in metastatic tumors and is often associatedwith active epithelial-to-mesenchymal transition (EMT). However, the extent towhich EMT is dependent on autophagy is largely unknown. This study aimed toidentify the mechanisms by which autophagy facilitates ***: We employed a liquid chromatography-based metabolomic approachwith kirsten rat sarcoma viral oncogene (KRAS) and liver kinase B1 (LKB1)gene co-mutated (KL) cells that represent an autophagy/EMT-coactivatedinvasive lung cancer subtype for the identification of metabolites linked to autophagy-driven EMT activation. Molecular mechanisms of autophagy-drivenEMT activation were further investigated by quantitative real-time polymerasechain reaction (qRT-PCR), Western blotting analysis, immunoprecipitation,immunofluorescence staining, and metabolite assays. The effects of chemicaland genetic perturbations on autophagic flux were assessed by two orthogonalapproaches: microtubule-associated protein 1A/1B-light chain 3 (LC3) turnoveranalysis by Western blotting and monomeric red fluorescent protein-greenfluorescent protein (mRFP-GFP)-LC3 tandem fluorescent protein quenchingassay. Transcription factor EB (TFEB) activity was measured by coordinatedlysosomal expression and regulation (CLEAR) motif-driven luciferase reporterassay. Experimental metastasis (tail vein injection) mouse models were used toevaluate the impact of calcium/calmodulin-dependent protein kinase kinase 2(CAMKK2) or ATP citrate lyase (ACLY) inhibitors on lung metastasis using IVISluciferase imaging ***: We found that autophagy in KL cancer cells increased acetyl-coenzymeA (acetyl-CoA), which facilitated the acetylation and stabilization of theEMT-inducing transcription factor Snail. The autophagy/acetyl-CoA/acetylSnail axis was further validated in tumor tissues and in autophagy-activatedpancreatic cancer cells. TFEB acetylation in KL cancer cells sustained prometastatic autophagy in a mammalian target o

关键词： snail autophagy acetyl-coenzyme A epithelial-to-mesenchymal transition non-small-cell lung cancer CAMKK2 acetyl-snail pancreatic cancer KRAS inhibitor metastasis ACLY

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Inoculation of Chlorella and Food Waste Improves the Physio-Morphological Features of Red Pepper by Regulating Activating Antioxidant Defense System

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Phyton-International Journal of Experimental Botany 2023年第9期92卷 2699-2711页

作者： sang-Mo Kang Shifa Shaffique Muhammad Imran Su-Mi Jeon Shabir Hussain Wani Muhammad Aaqil Khan Peter Odongkara Eun-Hae Kwon Yosep Kang joon-Ik Son Won-Chan Kim In-Jung lee Department of Applied Biosciences Kyungpook National UniversityDaegu41566Korea Biosafety Division National Institute of Agriculture ScienceRural Development AdministrationJeonju54874Korea Department of Technical Support Daegu City Agricultural Technology CenterDaegu41159Korea Department of Chemical and Life Sciences Qurtuba University of Science and Information TechnologyPeshawarPakistan Mountain Research for Field Crops Khudwani Shere-e-Kashmir University of Agriculture Sciences and Technology SrinagarJamu and KashmirIndia Corporate Affiliated Research Institute Seyen Co.Ltd.Kyungsan38561Korea

Food waste is recognized as a valuable source for potential agricultural applications to supply organic matter and nutrients to arable ***,the information on the combined application of food waste and the plant growth-promoting bacterial strain,Chlorella,related to plant metabolic features and sodium chloride content in arable soil is *** present study was conducted to investigate the exogenous application of food waste along with Chlorella,which improved the physio-morphological features of red *** results revealed that this combination enhanced the organic matter in the soil,ultimately improving the fertility rate of the soil,and the physio-morphological features,such as chlorophyll a content(24.5±0.7),root(7.8±0.7)cm and shoot length(12.1±0.7)cm,fresh weight(2.1±0.05)g,dry weight(0.19±0.05)g,mineral contents,and hormonal concentration(ABA by up to 2 folds).The combined treatment also minimized free radicals via the activation of the intrinsic antioxidant series cascade and electrolyte *** findings showed that adding Chlorella and food wastes improved growth characteristics and can be used as a green bio-fertilizer for sustainable agriculture.

关键词： Food waste Chlorella hormone antioxidant

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