This study aimed to evaluate the efficiency of combining acidification with adsorbents (zeolite and biochar) to mitigate the environmental impacts of pig slurry, focusing on ammonia (NH3) emission and nitrate (NO3 -) leaching. The four treatments were applied: 1) pig slurry (PS) alone as a control, 2) acidified PS (AP), 3) acidified pig slurry with zeolite (APZ), and 4) acidified pig slurry with biochar (APB). The AP mitigates NH3 emission and NO3 - leaching compared to PS alone. Acidification reduced the cumulative NH3 emission and its emission factor by 35.9% and 12.5%, respectively. The APZ and APB increased NH4 +-N concentration, with the highest level in APB, compared to AP. The NH4 + adsorption capacity of APB (0.90 mg g-1) was higher than that of APZ (0.63 mg g-1). The APB and APZ treatments induced less NH3 emission compared to AP. The cumulative NH3 emission was reduced by 12.2% and 27.6% in APZ and APB, respectively, compared to AP treatment. NO3 - leaching began to appear on days 12 and 13, and its peak reached on days 16 and 17, which were later than AP. The cumulative NO3 - leaching decreased by 17.7% and 25.0% in APZ and APB, respectively, compared to AP treatment. These results suggest that combining biochar or zeolite with acidified pig slurry is an effective method to mitigate NH3 emission and NO3 - leaching, with biochar being particularly effective.
본 연구는 아로마 목걸이를 병용한 비대면 수면 프로그램이 불면증 대학생의 수면의 질, 주간졸 림증, 우울 및 스트레스에 미치는 효과를 확인하고자 비동등 대조군 전후 실험설계로 시도되었다. 대상자 는 경기도 S시 소재 E대학에 재학중인 대학생 가운데 불면증상을 호소하는 대상자에게 중재 전후에 자가 설문으로 구성된 수면의 질, 주간졸림증, 우울, 스트레스를 측정하였다. 아로마목걸이를 병용한 비대면 수 면 프로그램은 실험군(n=21)에게 주 1회, 총 6주 동안 적용하였으며 대조군(n=21)에게 수면책자를 제공하 였다. 자료분석은 SPSS 24.0 프로그램을 이용하여 기술통계, Chi-square test, Fisher’s exact test, Independent t-test를 이용하여 분석하였다. 연구결과, 수면의 질(t=-5.87, p<.001), 주간졸음(t=-4.28, p<.001), 우울(t=-4.40, p<.001)에서는 그룹 간 유의한 차이가 나타났으며 스트레스는 유의하지 않았다. 따라서 아로마목걸이를 병용한 비대면 수면 프로그램이 대학생의 수면의 질, 주간졸림증, 우울 증상을 감 소시키는데 유용한 간호중재법으로 활용 가능할 것을 기대된다.
Microplastics and nanoplastics (NMPs) are considered one of hazardous contaminants in marine ecosystems due to their toxic effects, such as reproduction disorder and oxidative stress, on marine organisms. Although water temperature is rising due to global climate change, little information on the toxicological interaction between NMPs and temperature is available. Therefore, in this study, we confirmed the toxicity of NMPs (polystyrene [PS] beads; 0.05- and 6-μm) on brackish water fleas (Diaphanosoma celebensis) depending on increased temperature (30°C and 35°C) at individual and molecular levels. In the chronic toxicity test, the group exposed to high temperatures showed an earlier first reproduction time compared to the normal temperatures group, but it was delayed by co-exposure to NMPs at 35°C. Notably, the total reproduction decreased significantly only after 0.05-μm PS beads exposure at 30°C. Interaction analysis showed that first reproduction time, modulation of the antioxidantrelated gene (GSTS1), heat shock gene (Hsp70), and ecdysteroid pathway-related genes (EcR_A, EcR_B, and CYP314A1) were closely related to temperature and PS beads size. These results indicate that microplastics have size-dependent toxicity, and their toxicity can be enhanced at high temperatures. In addition, higher temperatures and PS beads exposure may have negative effects on reproduction. This study suggests that various factors such as water temperature should be considered when evaluating the toxicity of microplastics in marine ecosystems, and provides an understanding of the complex toxic interaction between water temperature and microplastics for marine zooplankton.
The yellow mealworm, Tenebrio molitor L. (Coleoptera: Tenebrionidae), is an important industrial insect commercially produced around the world as food and feed. Temperature and nutrition are the two most influential environmental factors determining the rearing conditions in insects, but little is known about how these two factors interact to affect the performance of T. molitor larvae. In this study, we investigated the combined effects of temperature and dietary protein:carbohydrate (P:C) ratio on key performance traits in T. moltior larvae. Throughout their larval stage, the insects were reared on one of 36 treatment combinations of six temperatures (19, 22, 25, 28, 31, 34 °C) and six protein:carbohydrate ratios (P:C = 1:5, 1:2, 1:1, 2:1, 5:1, 1:0) and their survivorship, development, growth rate, and pupal mass were monitored. Survivorship was high at low temperatures (< 25°C) and high P:C ratios (>1:1), but decreased with increasing temperature and decreasing P:C ratio. Increase in rearing temperature accelerated larval development but resulted in a reduced pupal mass. Thermal optimum for pupal mass (19.3°C) was thus lower than that for development time (28.1°C). The growth rate was maximized at 27.9°C and P:C 1.65:1 and decreased as both the temperature and the P:C ratio deviated from their optimum. All four key performance traits (survivorship, development time, pupal mass, growth rate) were optimized at temperatures between 25.7 and 27.4°C and P:C ratios between 1.17:1 and 2.94:1. Our data provide insights into how the production and nutritional value of T. molitor larvae can be improved through adjusting their rearing conditions.
Organizations are increasingly implementing recommendation systems on their websites. A growing body of research is focusing on how the characteristics of online message content affect consumers’ consumption intentions, taking into account consumers’ static personal information, such as demographics. However, limited research has explored how the social context of consumers and online message content characteristics can affect the consumers’ intention to consume events. To address this gap, the present study investigates the joint effects of consumers' social context and arousal potential cues on their intention to attend cultural events. Based on the Target-arousal level theory, we suggest that people who anticipate solo consumption (i.e., accompanied by no one) will tend to attend cultural events promoted by a low arousal potential cue ("A calming experience."), while those who anticipate social consumption (i.e., accompanied by one or more companions) will tend to attend cultural events promoted by a high arousal potential cue ("An exciting experience”). Furthermore, we argue that anticipated enjoyment will mediate this relationship. The joint impact of the social context and arousal potential cues of a cultural event on consumers' intention to attend, as well as the mediating role of anticipated enjoyment, were demonstrated through two studies. The use of message cues and personalized recommendation algorithms as tools to target consumers and improve attendance rates is discussed. References available upon request.
본 연구는 실봇을 병용한 인지강화 프로그램이 주관적 기억력 저하를 호소하는 노인의 인지기 능, 우울 및 치매예방행위에 미치는 효과를 알아보고자 하였다. 대상자는 경기도 성남시에 거주하는 노인 17명을 대상으로 복지관에서 수행되었다. 실봇과 인지강화를 병용한 총 20회기 프로그램을 개발하여 적용 하였으며 중재 전과 후에 한국 몬트리올 인지평가(K-MoCA), 우울(GDS), 치매예방행위(DPB)를 평가하였 다. 연구결과, 실봇을 병용한 인지강화 프로그램은 노인의 인지기능(t=-4.49, p<.001), 우울(t=2.58, p=.023)에서 통계적으로 유의한 차이가 있었다. 따라서 실봇을 병용한 인지강화 프로그램이 노인의 인지기 능 향상 및 우울 완화에 유용한 프로그램이 될 것으로 기대된다.
Background: It is Difficult for older adults to avoid a decreased in pulmonary functions caused by aging, and these reduced functions have been shown to affect not only the quality of life, but also the rate of disease and mortality. Although massage therapy is generally applied as a treatment method for improving the musculoskeletal system, massage is also studied as a potential intervention for lung function as a complementary treatment method.
Objectives: To determine the effects of massage and relaxation breathing exercise applied after a low-intensity walking exercise on pulmonary functions in older individuals.
Design: Quaxi-experiment study.
Methods: Twelve day care elderly were divided into a massage group (n=6) and a relaxation breathing exercise group (n=6). After performing low-intensity walking exercise twice for 7 weeks, massage intervention and relaxation breathing exercise intervention were performed, respectively. PEF, FEV1, and FVC were measured by performing lung function tests pre- and post the intervention.
Results: As a result of this study, PEF and FVC were significantly increased in the pre- and post-group comparison of MG, and there was no significant difference in FEV1. There were no significant differences in all variables in the pre-post comparison of RBEG within groups. There was no significant difference in all variables in the comparison between the two groups on the intervention results.
Conclusion: To conclude, pulmonary functions in older adults increased significantly after the massage intervention, although no significant difference was found in comparison to intervention with relaxation breathing exercise.
이 연구는 경도인지장애를 가진 노인여성을 대상으로 8주간의 유산소성운동과 저항성 운동을 병행 한 복합운동을 실시하여 인지 기능과 체력요인의 변화를 살펴보고자 진행되었다. 연구에 참여한 16명 의 연구대상자(63.42±8.71세)는 몬트리올 인지평가(MoC-K)로 경도인지장애로 판명 받은 노인여성이 다. 8주간의 복합운동에 따른 경도인지장애를 가진 노인여성의 인지기능은 유의하게 향상된 결과가 나타났고(p .0"), 균형자세(평형성)의 변화에 대한 일반자세 변인에서도 유의한 향상 효과(p .0")가 나 타났다. 또한, 체력요인 중 의자 일어나기 요인에서도 유의한 향상효과가 나타났다(P .01). 이러한 연 구결과를 토대로 8주간의 유산소성운동과 저항성운동의 복합운동이 경도인지장애를 가진 노인여성의 인지 기능과 체력요인에 긍정적인 효과를 미친다는 것을 알 수 있었다.
Background: A recent study found that pain neuroscience education (PNE) alters pain intensity, knowledge of pain, disability, psychological function, and pain behavior in patients with musculoskeletal pain. However, they noted that PNE alone was not sufficient to affect chronic low back pain (CLBP) reduction.
Objectives: To investigated the effect of CLBP on the PNE combined with lumbar mobilization.
Design: Quasi-experiment study.
Methods: A total of 33 patients aged 25 to less than 65, recruited from L-hospital for low back pain in Chungcheongnam-do. Out of 33 subjects, 17 were pain neuroscience education combined with lumbar mobilization group (PLMG) and 16 were lumbar mobilization group (LMG). The outcome was visual analogue scale (VAS), oswestry disability index (ODI) and the fear avoidance beliefs questionnaire (FABQ). The collected data was analyzed using the SPSS ver. 21.0 program by paired t-test and independent t-test.
Results: PLMG was indicated statistically significant decrease in VAS, ODI and FABQ before and after intervention. However, there were statistically significant changes in VAS and ODI before and after intervention in LMG. PLMG and LMG before and after intervention indicated statistically significant differences in VAS, ODI and FABQ. Conclusion: The inclusion of PNE combined with lumbar mobilization in patients with CLBP is a promising and feasible approach to the management of CLBP.
Background: Scoliosis can be caused by postural changes. The effects of Schroth exercises and Kinesio taping for scoliosis have been reported independently, but there are few studies on the effects of combining both methods.
Objectives: To investigated the effects of Schroth exercises and kinesio taping on the Cobb angle and dynamic balance ability in patients with scoliosis.
Design: Quaxi-experimental study.
Methods: Participants were divided into the taping (n=3) and non-taping (n=3) groups. Pre-tests for the Cobb angle and dynamic balance were performed prior to the first intervention, and post-tests were performed after the intervention was completed. The non-taping group performed Schroth exercises for a total of 12 35-minute sessions thrice a week for 6 weeks. Meanwhile, in the taping group, Kinesio tape was attached before performing the same exercises and was maintained for 24 hours after the exercises were finished.
Results: In the taping group, there was no significant change in the Cobb angle and dynamic balance ability pre- and post-intervention (P>.05). Similarly, there was no significant change in the Cobb angle and dynamic balance ability pre- and post-intervention (P>.05) in the non-taping group. Furthermore, there was no significant difference upon comparing the two groups (P>.05).
Conclusion: Kinesio taping combined with Schroth exercises did not give additional benefits in terms of the Cobb angle and dynamic balance ability than that in the application of Schorth exercises alone.
본 연구는 전화코칭을 병행한 운동프로그램이 지역사회 거주 독거노인의 균형능력, 악력 및 우 울에 미치는 효과를 조사하기 위한 단일집단 사전사후 원시실험연구이다. 연구대상자는 경기도 S시에 위치 한 노인복지관에 등록된 독거노인 20명이 참여하였으며, 자료수집기간은 2021년 7월 03일부터 2021년 10 월 14일까지 총 12회기 프로그램을 시행하였다. 프로그램 전후에 대상자 가정에 직접 방문하여 4단계 균형 검사, 근력검사, 악력 및 우울을 측정하였다. 중재 프로그램은 탄력밴드와 악력볼을 이용하여 구성하였으며 매주 전화코칭 중재를 제공하였다. 연구결과, 전화코칭을 병행한 운동 프로그램은 대상자의 4단계 균형기 능(3단계)(t=-2.37, p=.029), 4단계 균형기능(4단계)(t=-2.46, p=.024), 우측 악력(t=-2.18, p=.042), 우울 (t=2.82, p<.001)에서 통계적으로 유의한 차이가 나타났다. 본 연구 결과를 바탕으로 전화코칭을 병행한 운 동프로그램은 독거노인의 균형능력, 악력 향상 및 우울 감소를 위한 간호중재로 활용될 수 있을 것으로 기 대된다.
목적 : 발달장애아동에게 앱 기반의 시지각 훈련을 병행한 감각통합중재를 적용하여 주의집중력, 시지각 능력 및 일상생활수행능력에 미치는 변화를 확인하고자 하였다.
연구방법 : 총 20명의 발달장애아동을 두 집단으로 무작위 배정하여 사전-사후검사 통제집단설계를 적용 하였다. 중재는 치료사와 1:1로 회기 당 50분, 주 2회, 총 24회기 적용하였다. 처음 30분 동안 공통의 감각통합 프로그램을 제공하고, 이후 20분 동안 실험군에는 앱을 활용한 시지각 훈련, 대조군에는 지필형 시지각 훈련을 적용하였다. 중재의 효과를 확인하기 위한 도구로 주의집중력은 숫자 외우기 검사 (Digit Span Test; DST), 시지각 능력은 한국판 시지각 발달검사(Korean-Developmental Test of Visual Perception 2; K-DTVP 2), 일상생활수행능력은 아동용 기능적 독립성 측정도구(Functional Independence Measure for children; Wee FIM)를 활용하였다.
결과 : 중재 후 실험군의 모든 영역과 대조군의 주의집중력을 제외한 영역에서 각 집단 내 유의한 효과가 검증되었다. 집단 간 비교에서는 유의한 차이가 나타나지 않았다.
결론 : 감각통합중재는 발달장애아동의 시지각 능력과 일상생활수행에 효과적인 중재이며, 특히 앱 기반의 시지각 훈련을 병행한 감각통합중재는 주의집중력 향상에 더욱 효과적이다. 추후 작업치료영역에서 발달 장애아동의 흥미와 능력에 적합한 다양한 도구의 활용을 통해 기능향상에 긍정적인 효과를 기대할 수 있을 것이다.
본 연구의 목적은 파킨슨병 환자를 대상으로 16주간 복합운동을 수행하였을 때 혈중 도파민 농도, 기능적 체력 및 삶의 질에 어떠한 영향을 미치는지를 규명하는데 있다. 이를 위해 본 연구에 참여한 60 대 이상의 파킨슨병 환자 24명을 운동군(n=12)과 통제군(n=12)으로 분류한 후 운동군을 대상으로 16주 동안 주 2회, 회기 당 70분의 복합운동을 실시하였다. 복합운동 실시 전·후 항목별 차의 비교를 위해 그룹 내 차이는 대응 t 검정, 그룹 간 차이는 독립 t 검정, 상호작용 검증을 위해 이원 반복측정 분산분석을 사용 하였으며, 각 항목별 통계적 유의수준은 .05로 설정하였다. 그 결과 첫째, 도파민 농도는 운동군(p<.01)이 16주간 운동 전보다 운동 후 유의하게 증가하였고, 통제군의 경우 유의한 차이가 나타나지 않았다. 둘째, 기능적 체력에서 악력은 운동군(p<.001)과 통제군(p<.05) 모두 16주간 운동 전보다 운동 후 유의하게 증가 하였고, 덤벨들기(p<.001), 의자 일었다 앉기(p<.001), 3m 걸어갔다 돌아오기(p<.01)가 16주간 운동 전보다 운동 후 운동군에서 유의한 차이를 보였고, 통제군은 유의한 차이가 나타나지 않았다. 셋째, 삶의 질은 운동군(p<.001)이 16주간 운동 전보다 운동 후 유의하게 증가하였다. 이상의 결과를 종합해 볼 때 16주간 의 복합운동은 파킨슨병 환자에게 매우 효과적임을 알 수 있었으며, 도파민 농도를 증가시키고 근력, 근지 구력, 평형성 및 보행능력 등 기능적 체력과 삶의 질을 향상시키는데 도움을 줄 수 있다고 사료된다.
This study examined the combined effects of high hydrostatic pressure (HHP) and micro-perforated (MP) film packaging on the microbiological and physicochemical qualities of kimchi sauce stored under fluctuating temperature conditions. Before storage, treatment with 600 MPa HHP reduced the total lactic acid bacteria in the sauce samples to below the detection limit (1 log CFU/g). After 68-day storage, ten microbial strains isolated from the non-treated controls were identified as Pediococcus pentosaceus, whereas eight microbial strains isolated from the HHP-treated samples were identified as Bacillus spp., regardless of the packaging type. Additionally, the samples treated with HHP and packaged in a multilayer film bag (ML-HPP), as well as those in the MP-HHP group, exhibited higher pH values and reduced sugar content than the ML-control or MP-control after 68-day storage. No significant differences were observed between the control and treatment groups regarding their electrical conductivity, salinity, and CIE a* values at the end of storage. However, there was no O2 reduction or CO2 accumulation in the MP-HHP group after 68-day storage. These results indicate that the combination of HHP treatment and MP-film packaging can extend the kimchi sauce's shelf life without packaging expansion during long-term storage.
Background: Patients with stroke have core muscle weakness and limited rib cage movement, resulting in restrictive lung disease.
Objectives: To examine the comparison of effects of rib cage joint mobilization combined with diaphragmatic breathing exercise and diaphragmatic breathing exercise on the pulmonary function and chest circumference in patients with stroke.
Design: A cluster randomized controlled trial.
Methods: Twenty-four patients were randomly assigned to an experimental group (rib cage joint mobilization combined with diaphragmatic breathing exercise group) and control group (diaphragmatic breathing exercise group). Patients in the experimental group underwent rib cage joint mobilization for 15 min and diaphragmatic breathing exercise for 15 min. The control group underwent diaphragmatic breathing exercise for 30 min. Both groups underwent exercise thrice a week for 4 weeks. The pulmonary function and chest circumference were measured using the MicroLab spirometer and a tape measure, respectively.
Results: After the intervention, the pulmonary function and chest circumference significantly improved in both groups. These improvements were significantly higher in the experimental group than those in the control group.
Conclusion: Rib cage joint mobilization combined with diaphragmatic breathing exercise improves pulmonary function and chest circumference in patients with stroke.
본 연구의 목적은 출산 전 필라테스 운동과 프로바이오틱스 섭취가 출산 후 여성의 장내미생물, 신체구성, 혈중지질, 비만호르몬, 염증성 사이토카인에 미치는 영향을 알아보는데 있다. 총 15명의 임산부를 운동+프로바이오틱스섭취군(PEX, n=5), 운동군(EX, n=5), 대조군(CON, n=5)으로 구분하였다. PEX 집단과 EX 집단은 8주 동안 주 2회 필라테스 운동에 참여하였고 준비운동 10분, 본 운동 30분, 정리운동 10분으로 실시하였으며, PEX 집단은 매일 공복에 프로바이오틱스 1 캡슐을 섭취하였다. 그 결과 출산 후 PEX 집단의 체지방 및 WHR 수치가 감소하였다. 장내미생물의 변화는 비피도박테리움, 락토바실러스, 클로스트리디움, 퍼미큐테스, 박테리오데스의 구성 수준에서 집단 간 유의한 차이가 나타나지 않았다. 비만 호르몬과 염증성 사이토카인의 변화는 PEX 집단에서 사후 렙틴, IL-6, TNF-a 수치가 감소하는 것으로 나타났고, 혈중 지질 수준에서는 차이가 없었다. 결론적으로 출산 전 필라테스와 프로바이오틱스 병행 처치는 출산 후 여성의 복부지방 감소에 효과적이며 염증 및 비만 관련 호르몬에 긍정적인 영향을 주어 산후 빠른 회복에 도움이 될 것이다.