Analysis and research on propagation field strength characteristics of non-line-of-sight signal by Fengxun GONG, Ying ZHANG

“…In order to explore the diffraction loss caused by non-line-of-sight (NLOS ) propagation caused by obstacles in the airport communication path, the attenuation characteristics of signal field were studied.Firstly, based on the influence of different terrain environments on signal propagation in ITU-R P.1546, a combined signal field strength model was constructed with Deygout model.Secondly, according to the number of obstacles, the propagation characteristics of the received field strength varying with the height of obstacles were analyzed.The simulation results show that the higher the single obstacle is, the larger the Fresnel zone occupying 0.6F₁ is and the smaller the field strength is.In the dual obstacle path, the obstacle with increased height goes through the process of changing from secondary to main obstacle until only the main obstacle is left, so that the field strength gradually decreases.Thirdly, the relationship between secondary obstacle height and 0.6F₁ Fresnel zone was analyzed for field strength rise.Finally, the minimum threshold of the covered field strength was adjusted to determine whether the receiving device was blocked by obstacles and the signal was shielded.The above research results can provide a reference for simulating the distribution of obstacles in various airport scenarios in the future, and predicting whether the receiver is interfered by obstacles or affects the field intensity coverage.…”
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Chorea as the First Sign in a Patient with Elderly-Onset Systemic Lupus Erythematosus by Yuko Ariizumi, Tetsutaro Ozawa, Takayoshi Tokutake, Izumi Kawachi, Masaki Hirose, Shinichi Katada, Shuichi Igarashi, Keiko Tanaka, Masatoyo Nishizawa

“…The case of an elderly patient who had chorea as an initial symptom of systemic lupus erythematosus (SLE) accompanied by antiphospholipid syndrome (APS) is reported. …”
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Spin-orbital conversion of the light field immediately behind an ideal spherical lens by V.V. Kotlyar, A.A. Kovalev, S.S. Stafeev, E.S. Kozlova, M.A. Telegin

“…The Richards-Wolf equations not only adequately describe a light field distribution at the sharp focus, but are also able to describe a light field distribution just behind an ideal spherical lens, i.e. on a converging spherical wavefront. …”
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Canonical quantization of the U(1) gauge field in the right Rindler-wedge in the Rindler coordinates by Shingo Takeuchi

“…Then, tracing out the left Rindler states of that Minkowski ground state, we obtain the density matrix of the U(1) gauge field in the RRW. …”
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Posttraining Alpha Transcranial Alternating Current Stimulation Impairs Motor Consolidation in Elderly People by Jost-Julian Rumpf, Alexandru Barbu, Christopher Fricke, Mirko Wegscheider, Joseph Classen

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Spatial activity and sheltering behaviour of terrestrial isopods (Isopoda, Oniscidea): a field experiment by Romana Fialová, Ivan Hadrián Tuf

“…The number of animals recaptured declined over time as they left the field-experiment area. The provided shelters were found to be unevenly inhabited both in relation to their position and the time elapsed since the beginning of the experiment. …”
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Unexpected High Sensory Blockade during Continuous Spinal Anesthesiology (CSA) in an Elderly Patient by R. Ketelaars, A. P. Wolff

“…A 98-year-old woman presented for a hemiarthroplasty of the left hip. Because of her age and cardiac and pulmonary co-existing diseases we decided to provide adequate regional anesthesia by continuous spinal anesthesia. …”
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Implications of ANEC for SCFTs in four dimensions by Andrea Manenti, Andreas Stergiou, Alessandro Vichi

“…We also derive ANEC bounds on 1 2 j 0 $$ \left(\frac{1}{2}j,0\right) $$ operators obeying other possible shortening conditions, as well as general 1 2 j 0 $$ \left(\frac{1}{2}j,0\right) $$ operators not obeying any shortening condition. …”
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The Impact of Cataract Surgery on Depression in Elderly Iranian Patients: A Case–Control Study by Kiumars Nowroozpoor Dailami, Mohammad Ali Heidari Gorji, Seyed Hamzeh Hoseini, Asadollah Farookhfar

“…This study aimed to evaluate the effect of cataract surgery on depression among elderly Iranian patients. Methods: In this case–control study, a total of 113 elderly patients with and without cataract who were admitted to Buali-Sina Hospital in Sari, Mazandaran, Iran were evaluated. …”
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Occurrence of sarcopenia in elderly patients with coronary heart disease and its association with short-term prognosis by Hongfang Li, Fangfang Ma, Yite Li, Hongying Li, Jiancheng Huang

“…Abstract Objective Sarcopenia is a common complication in elderly patients with coronary heart disease (CHD). …”
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Inferior Vena Cava Filter and Catheter-based Thrombolysis for Treatment of Massive Deep Vein Thrombosis: A Case Report by Sangram S Mangudkar, Sanket Genuji Shinde, Varun Bhaskar Lingneni, Satbir Kaur Malik, Sai Sirisha Nallani

“…This research was carried out on a young man without any notable medical history and no history of addictions who arrived complaining of severe swelling that had developed over the course of a day, affecting his left lower limb. A bilateral lower limb doppler ultrasound suggested thrombosis in the popliteal vein, great saphenous vein, deep femoral vein and common femoral vein in the left lower limb. …”
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Gravitational Lensing of Charged Ayon-Beato-Garcia Black Holes and Nonlinear Effects of Maxwell Fields by H. Ghaffarnejad, M. Amirmojahedi, H. Niad

“…Image locations in weak deflection limit (WDL) decrease (increases) by raising 0<|q|<1 in presence (absence) of NEM fields. By raising the closest distance of the bending light rays image locations in WDL change from left (right) to right (left) in absence (presence) of NEM fields. …”
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An Electronic Frailty Index Based on Deficit Accumulation May Predict Glaucomatous Visual Field Progression by Duy W, Pajewski N, Williamson JD, Thompson AC

“…Walter Duy,1,&ast; Nicholas Pajewski,2 Jeff D Williamson,3 Atalie C Thompson3,4,&ast; 1Wake Forest University School of Medicine, Winston-Salem, NC, USA; 2Department of Biostatistics and Data Science, Wake Forest University School of Medicine, Winston-Salem, NC, USA; 3Department of Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, USA; 4Department of Surgical Ophthalmology, Wake Forest University School of Medicine, Winston-Salem, NC, USA&ast;These authors contributed equally to this workCorrespondence: Atalie C Thompson, Department of Surgical Ophthalmology, Atrium Health Wake Forest Baptist Health, Janeway Tower 6th Floor, Winston-Salem, NC, USA, Tel +1 (336) 716-4091, Fax +1 (336) 716-7994, Email atathomp@wakehealth.eduPurpose: To investigate whether an electronic frailty index (eFI) is associated with visual field loss in glaucoma.Patients and Methods: We identified 1163 subjects ≥ 65 years old with glaucoma (1082 right eyes and 1042 left eyes) who had a calculable baseline eFI, and who had reliable visual fields at baseline and final follow-up. …”
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The impact of precompetition state on athletic performance among track and field athletes using machine learning by Yuting Zhang, Pengyu Fu, Qi Yu, Qingmei Niu, Dongfeng Nie, Xiangya Dou, Xiaoqin Zhang

“…ObjectiveThis study aims to compare the differences in the precompetition status (nutritional, physiological, biochemical, psychological, and sleep statuses) among college track and field athletes with different competition performances and to screen for key indicators of differences affecting athletic performance.MethodsMultiple indicators, traditional methods, and machine learning methods are used to detect the exercise load, fatigue index, and precompetition state of athletes with different sports performances.Results(1) Two weeks before the competition, the fat mass in the left upper limb in the BP group was significantly higher than that in the BnP group (P &lt; 0.05). …”
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Some Developments in the Field of Homological Algebra by Defining New Class of Modules over Nonassociative Rings by Asima Razzaque, Inayatur Rehman

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Working towards Usable Forms on the World Wide Web: Optimizing Date Entry Input Fields by Javier A. Bargas-Avila, Olivia Brenzikofer, Alexandre N. Tuch, Sandra P. Roth, Klaus Opwis

“…This paper discusses an empirical online study with n = 172 participants which compared six different versions to design input fields for date entries. The results revealed that using a drop-down menu is best when format errors must be avoided, whereas using only one input field and placing the format requirements left or inside the text box led to faster completion time and higher user satisfaction.…”
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Instrumental and Motivational Resources of Specialists in the Field of Protection of Children’s Rights in Conditions of Uncertainty of Professional Activity by V.N. Oslon, M.A. Odintsova, G.V. Semya, U.V. Kolesnikova

“… <p style="text-align: justify;">The article presents the results of a study of the instrumental and motivational resources of 596 specialists of three professional groups (specialists of guardianship and guardianship authorities; the Office of the Commissioner for Children&rsquo;s Rights; organizations for orphans and children left without parental care) from 87 subjects of the Russian Federation in conditions of experiencing situations of uncertainty in their professional activities. …”
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Uptake and Distribution of Cd in Sweet Maize Grown on Contaminated Soils: A Field-Scale Study by Wending Xu, Guining Lu, Zhi Dang, Changjun Liao, Qiangpei Chen, Xiaoyun Yi

“…Maize cultivars CT38 and HZ were planted in field soils contaminated with Cd and nitrilotriacetic acid (NTA) was used to enhance the phytoextractive effect of the maize. …”
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Analysis and Field Measurement on the Internal Force Variation Laws of Steel Pipe Columns in Subway Stations by Nan Liu, Yu-sheng Jiang, Hua Jiang, Long-fei Chang, Xing Yang, Xiao Tong

“…When the left and right spans are not synchronously arched or excavated, the steel pipe column is subjected to uneven forces and bears a large bending moment is produced. …”
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APPLICATIONS OF DIABETIC FOOT EXERCISE TO INCREASE FOOT SENSITIVITY IN ELDERLY WITH TYPE 2 DIABETES MELLITUS by Siti Aisah, Fika Zahrun Ni'mah

“…Results:  After 7 days of intervention, there was an increased foot sensitivity, with a mean increased score on right and left foot of 0,43 and 0,33. Conclusions: Diabetic foot exercise for 7 days with a duration of 30-45 minutes can increase foot sensitivity in elderly with Type 2 Diabetes Mellitus. …”
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