Reverse Link Research Articles

The braid indices of the reverse parallel links of alternating knots

The braid indices of the reverse parallel links of alternating knots

Comparing cardiorespiratory fitness, body composition, and muscular endurance of patients with schizophrenia and schizoaffective disorders with a population-based sample

BackgroundThere is an entrenched reverse link between cardiorespiratory fitness (CRF) and earlier deaths. The purpose of our study was to provide a report of CRF elements in a sample of hospitalized patients with schizophrenia and to compare them with a population-based sample.MethodsThis study was performed on 60 subjects (30 in the schizophrenic and schizoaffective group and 30 in the control group). CRF factors such as body mass index (BMI), and body fat, push-up test, curl-up test, VO2 peak, and sit-and-reach test, were compared across two groups. The Positive and Negative Syndrome Scale (PANSS) and the World Health Organization Disability Assessment Schedule (WHODAS 2.0) were assessed in the case group.ResultsThe body fat percentage, abdominal circumference, and BMI are more in schizophrenic patients. Also, flexibility, muscle endurance, and maximum aerobic capacity are significantly lower in schizophrenic and schizoaffective patients comparing healthy subjects (P < .001). Moreover, we found that with the increasing severity of the disease, the CRF of the patients became worse (P <.001).ConclusionPatients with schizophrenia and schizoaffective disorders should be evaluated for cardiorespiratory and other factors of CRF. Exercise prescription treatment can be helpful to improve social functioning and decrease the impact of cardiovascular disease in patients with schizophrenia.

Causal relationship between telomere length and risk of intracranial aneurysm: a bidirectional Mendelian randomization study.

Telomere length is closely linked to the aging phenotype, where cellular aging results in the production of a cascade of cell factors and the senescence-associated secretory phenotype (SASP), leading to an inflammatory response. The presence of inflammation plays a crucial role in the formation of intracranial aneurysms. Nevertheless, the relationship between telomere length and intracranial aneurysms remains unclear. This study aims to explore the causal connection between telomere length and intracranial aneurysms through the utilization of Mendelian randomization (MR) analysis. Data on telomere length were obtained from the genome-wide association studies conducted on the UK Biobank, comprising a total of 472,174 participants. Data on intracranial aneurysms were obtained from the summary dataset of the Global Genome-wide Association Study (GWAS) conducted by the International Stroke Genetics Consortium. The dataset consisted of 7,495 cases and 71,934 controls, all of European descent. Initially, the linkage disequilibrium score was used to investigate the connection between telomere length and intracranial aneurysms. Subsequently, a bidirectional MR was conducted using two-sample analysis to assess whether there is a causal connection between telomere length and intracranial aneurysm risk. The results were analyzed utilizing five MR methods, with the inverse variance weighted method serving as the main methodology. In addition, we did various analyses to evaluate the presence of heterogeneity, pleiotropy, and sensitivity in the study results. A reverse MR analysis was conducted to investigate potential reverse causal links. In the forward MR analysis, it was observed that both the inverse variance-weighted and weighted median analyses implied a potential causal relationship between longer telomere length and a decreased incidence of intracranial aneurysms (IVW: OR = 0.66, 95% CI: 0.47-0.92, p = 1.49 × 10-2). There was no heterogeneity or horizontal pleiotropy. The findings were verified to be robust through the utilization of leave-one-out analysis. The use of reverse MR analysis did not establish a potential causal link between the occurrence of intracranial aneurysms and telomere length. There may exist a potential correlation between longer telomere length and a decreased likelihood of intracranial aneurysms within the European population. The present study offers novel insights into the correlation between telomere length and intracranial aneurysms. Additional research is required to clarify the underlying mechanisms and validate our discoveries in diverse populations.

Causal relationship between gut microbiota and prostate cancer contributes to the gut-prostate axis: insights from a Mendelian randomization study

BackgroundChanges in gut microbiota abundance have been linked to prostate cancer development. However, the causality of the gut-prostate axis remains unclear.MethodsThe genome-wide association study (GWAS) data for gut microbiota sourced from MiBioGen (n = 14,306), alongside prostate cancer summary data from PRACTICAL (n = 140,254) and FinnGen Consortium (n = 133,164). Inverse-variance-weighted (IVW) was mainly used to compute odds ratios (OR) and 95% confidence intervals (Cl), after diligently scrutinizing potential sources of heterogeneity and horizontal pleiotropy via the rigorous utilization of Cochran's Q test, the MR-PRESSO method, and MR-Egger. We used meta-analysis methods in random effects to combine the Mendelian randomization (MR) estimates from the two sources.ResultsThe pooled analyses of MR results show that genus Eubacterium fissicatena (OR = 1.07, 95% CI 1.01 to 1.13, P = 0.011) and genus Odoribacter (OR = 1.14, 95% CI 1.01 to 1.27, P = 0.025) were positively associated with prostate cancer. However, genus Adlercreutzia (OR = 0.89, 95% CI 0.83 to 0.96, P = 0.002), Roseburia (OR = 0.90, 95% CI 0.83 to 0.99, P = 0.03), Holdemania (OR = 0.92, 95% CI 0.86 to 0.97, P = 0.005), Flavonifractor (OR = 0.85, 95% CI 0.74 to 0.98, P = 0.024) and Allisonella (OR = 0.93, 95% CI 0.89 to 0.98, P = 0.011) seems to be a protective factor for prostate cancer. Sensitivity analysis found no significant heterogeneity, horizontal pleiotropy, or reverse causal links in all causal associations.ConclusionThis MR study lends support to a causal relationship between genetically predicted gut microbiota and prostate cancer. Research on the gut-prostate axis, along with further multi-omics analyses, holds significant implications for the prevention and treatment of prostate cancer.

Does moral valence influence the construal of alternative possibilities?

It is often thought that an agent may be held morally responsible for bringing about a negative outcome only if they could have done otherwise. Inspired by previous research linking moral judgment to free will ascriptions and representations of possibility, we probe the reverse link: Does learning about a morally undesirable outcome make preferable alternatives appear more possible? We find modest evidence that this could be the case. In a preregistered experiment, we presented 317 participants with animated footage of a traffic accident in which two bystanders fail to intervene as a third person gets run over by bus, and manipulated whether the victim was evil, virtuous, or neutral. Judging from the same visual input, people indicate that saving an evil victim would have been slightly less possible than saving a virtuous or neutral victim, and arriving at the conclusion that it would have been possible demanded more time. Using drift-diffusion modeling to better understand the underlying cognitive processes, we found that participants were biased against counterfactual attempts to save the evil victim’s life, but then gathered evidence toward their decisions at the same rate regardless of the victim’s morality.

The association between adipokines and pulmonary diseases: a mendelian randomization study

BackgroundThe role of adipokines in the development of lung diseases is significant, yet their specific relationship with different lung diseases remains unclear.MethodsIn our research, we analyzed genetic variations associated with adipokines and various lung conditions such as interstitial lung disease, chronic obstructive pulmonary disease, asthma, lung cancer, sleep apnea, pneumonia, and tuberculosis, using data from public genome-wide studies. We employed Mendelian randomization techniques, including inverse variance weighting, weighted median, and MR-Egger regression methods, and conducted sensitivity checks to validate our findings.ResultsA study using the FinnGen database, which included 198,955 participants, identified 13 SNPs associated with adiponectin. Notably, adiponectin was found to significantly reduce the risk of interstitial lung disease and idiopathic pulmonary fibrosis. However, little evidence was found to establish a direct cause-effect relationship between the six adipokines and several other lung conditions, including sarcoidosis, asthma, chronic obstructive pulmonary disease, lung cancer, tuberculosis, pneumonia, and sleep apnea syndrome.ConclusionThis study reveals a reverse link between adiponectin levels and the likelihood of interstitial lung disease, including idiopathic pulmonary fibrosis.

A combined opposite targeting of p110δ PI3K and RhoA abrogates skin cancer

Malignant melanoma is the most aggressive and deadly skin cancer with an increasing incidence worldwide whereas SCC is the second most common non-melanoma human skin cancer with limited treatment options. Here we show that the development and metastasis of melanoma and SCC cancers can be blocked by a combined opposite targeting of RhoA and p110δ PI3K. We found that a targeted induction of RhoA activity into tumours by deletion of p190RhoGAP-a potent inhibitor of RhoA GTPase-in tumour cells together with adoptive macrophages transfer from δD910A/D910A mice in mice bearing tumours with active RhoA abrogated growth progression of melanoma and SCC tumours. Τhe efficacy of this combined treatment is the same in tumours lacking activating mutations in BRAF and in tumours harbouring the most frequent BRAF(V600E) mutation. Furthermore, the efficiency of this combined treatment is associated with decreased ATX expression in tumour cells and tumour stroma bypassing a positive feedback expression of ATX induced by direct ATX pharmacological inactivation. Together, our findings highlight the importance of targeting cancer cells and macrophages for skin cancer therapy, emerge a reverse link between ATX and RhoA and illustrate the benefit of p110δ PI3K inhibition as a combinatorial regimen for the treatment of skin cancers.

Development of public self-government within the framework of public administration of physical culture and sports in the system of higher education

The article deals with approaches to public self-government within the framework of public administration of physical culture and sports in the system of higher education. Based on the study of the Law of Ukraine “On Education” and the Law of Ukraine “On Higher Education”, the provisions on public self-government in general in education and in higher education in particular are summarized. Consideration of the subjective component of the Law of Ukraine “On Physical Culture and Sports” allowed for the identification of public self government institutions at: the level of a higher education institution - student sports centers of higher education institutions; local (territorial) level - public associations of pupils and students with a physical culture and sports orientation; national (allUkrainian) level – the sports student union of Ukraine, and also for the development of their functions. Thanks to the developed functions of all the above-mentioned public self- government bodies in the field of physical culture and sports of higher education, a synergistic effect is achieved from the development of vertical reverse management links between the Council for the Development of Physical Culture and Sports in Higher Education and the latter. In order to legitimize the proposed provisions, it is proposed to amend the Law of Ukraine “On Physical Culture and Sports” in part of Article 26 “Physical Culture in Education” by supplementing it with Part 9 in the corresponding author's wording.

Association between Gut Microbiota and Leukemia: A Bidirectional Multivariable Mendelian Randomization Study

Background: Empirical investigations have demonstrated a correlation between the gut microbiota and the onset and advancement of leukemia. However, inconsistencies in sequencing depths across studies and limited sample sizes within individual studies have contributed to inconclusive findings regarding changes in particular microbiota genera. The objective of this study is to investigate the potential bidirectional causal association between the gut microbiota composition and leukemia, and additionally to examine the potential of the gut microbiota in mitigating the risk of developing leukemia. Method: This multivariable Mendelian randomization (MVMR) study acquired top SNPs associated with the composition of gut microbiota (n=11,2958) and with leukemia [Chronic lymphocytic leukemia (CLL, n=16,380,466), chronic myelogenous leukemia (CML, n=456,348), Acute lymphoblastic leukemia (ALL, n=16,353,462), and Acute myeloid leukemia (AML, n=16,380,466)] from publicly available genome-wide association studies (GWAS). The SNPs estimates were pooled using inverse-variance weighted (IVW) meta-analysis, with sensitivity analyses-weighted median (WM), MR Egger, and MR Pleiotropy Residual Sum and Outlier (PRESSO). Finally, reverse MR analysis was performed to evaluate the possibility of reverse causation. Results: The Clostridia class (OR=0.13, 95%CI=0.02-0.85), Peptococcaceae family (OR=0.20, 95%CI=0.05-0.86), Clostridiales order (OR=0.11, 95%CI=0.02-0.66) and Firmicutes phylum (OR=0.15, 95%CI=0.03-0.78) had protective causal effects on acute leukemia (AL). In contrast, the Gammaproteobacteria class (OR=29.95, 95%CI=3.01-297.89), Veillonellaceae family (OR=4.39, 95%CI=1.23-15.62), Eubacterium genus, Oxidoreducens group (OR=4.78, 95%CI=1.13-20.29), Lactococcus genus (OR=2.85, 95%CI=1.09-7.45) and Slackia genus (OR=6.76, 95%CI=1.45-31.41) were risk factors for AL. This study also shown a protective effect of Lachnospiraceae ND3007 group (OR=0.14, 95%CI=0.02-0.96), Desulfovibrio genus (OR=0.41, 95%CI=0.18-0.95) and Eggerthella genus (OR=0.47, 95%CI=0.26-0.87) on chronic leukemia (CL). Additionally, Methanobacteria class, Methanobacteriaceae family, Methanobacteriales order, Erysipelatoclostridium genus, and Flavonifractor genus, all shown an anti-protective effect on CL (P &amp;lt;0.05). Bidirectional MVMR showed that AL and ML also has an effect on the gut microbiota. Conclusion: This MVMR study showed a protective effect of Clostridia class, Peptococcaceae family, Clostridiales order and Firmicutes phylum, and a potentially anti-protective effect of Gammaproteobacteria class, Veillonellaceae family, Eubacterium genus oxidoreducens group, Lactococcus genu and Slackia genus on AL. The results also show that several groups of gut microbiotas are anti-protective against CL. We also observed a reverse causal link between leukemia and gut microbiota. Further studies are needed to transform the findings into practice and required to show how the gut microbiota affects the development of leukemia. Key Words: Gut microbiota; Chronic lymphocytic leukemia; chronic myelogenous leukemia; Acute lymphoblastic leukemia; Acute myeloid leukemia; Multivariable Mendelian randomization

The influence of serotonin on the formation of clinical symptoms of functional gastrointestinal disorders in children

According to the Rome IV consensus (2016), functional gastrointestinal disorders (FGIDs) are disorders of the interaction between the gut and the brain. A crucial role in the realization of this mechanism is played by the key neurotransmitter serotonin. Aim - to investigate the influence of serotonin on the formation of clinical symptoms in children with FGIDs. Materials and methods. Under observation were 72 children aged 10-18 years with FGIDs. The Group I consisted of 30 children with combined functional dyspepsia (FD) and irritable bowel syndrome (IBS), the Group II included 42 children with FD. A control group of 20 healthy children was established. The diagnosis of FD and IBS was established based on the analysis of clinical symptoms according to the Rome IV criteria (2016). The severity of clinical symptoms was assessed using the Likert scale from 0 to 5 points. The study of serotonin content in whole blood was conducted using a fluorometric method after adsorption on carboxymethylcellulose. Results. The intensity of abdominal pain and the severity of dyspeptic syndrome in children with combined FD and IBS is higher than in children with FD (p&lt;0.01; p&lt;0.05, respectively). The serotonin content in whole blood in children with FGIDs is lower than in healthy children (p&lt;0.001). In children with combined FD and IBS, the serotonin content is lower than in children with FD (p&lt;0.05). Reverse correlation links were found between serotonin content and the intensity of pain syndrome (r=-0.7), the severity of dyspeptic syndromes (r=-0.5), constipation (r=-0.7), and diarrhea (r=0.7). Conclusions. The obtained research results indicate the influence of serotonin on the formation of clinical symptoms in children with FD and combined FD and IBS. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of the participating institution. The informed consent of the patient was obtained for conducting the studies. No conflict of interests was declared by the authors.

Расширенное ортогональное прекодирование с обратной связью для систем с пространственным мультиплексированием

Various methods of generating of space-time codes and algebraic structures for increasing noise immunity of MIMO communication systems with a large number of transmitting and receiving antennas are considered. The possibility of generation of an orthogonal precoding matrix in MIMO systems depending on changing reception conditions in a radio channel using feedback from a transmitter to a receiver is shown. It is obtained that to transmit such a precoding matrix in MIMO systems with 4×4, 8×8, 16×16 antenna configurations, feedback is required with the ability to transmit only 2 bits on the reverse link at an energy gain of 1.5 dB ... 2.5 dB compared to an open loop system. The precoding matrices obtained in the article and their formation algorithms can be used in the development of new MIMO mobile communication systems.

Design and Implementation of a Non-Common-View Axis Alignment System for Airborne Laser Communication

This paper proposes a non-common-view axis alignment method for the alignment requirements of airborne laser communication systems. The system consists of a ground transmitting end and an airborne relay terminal. The ground transmitting end uses a camera and a pan-tilt for image tracking, while the airborne relay end uses a two-dimensional mirror to control the beam to achieve non-common-view axis alignment between the transmitting and receiving sides. The working principle and process of both the transmitter and receiver of the non-common-view axis alignment system for airborne laser communication were compared with traditional wireless optical alignment methods. The design process of the two-dimensional mirror used in this paper is introduced, the scanning trajectory of the two-dimensional mirror is simulated and analyzed according to the beam scanning principle, and the field experiment link is set up to carry out the airborne laser communication experiment. The experimental results show that when the link distance is 10 m, the tracking errors of the system in the azimuth and pitch directions are 19.02 µrad and 22.35 µrad respectively, and the amplitude of the electrical signal output by the signal detector is 84.0 mV; When the link distance is 20 m, the tracking errors of the system in the azimuth and pitch directions are 39.66 µrad and 33.94 µrad respectively, and the amplitude of the electrical signal output by the signal detector is 23.0 mV. Using this method, the alignment can be completed without data return, and the establishment of the reverse link can also be realized while the transmission link is quickly established, and there is no need for an air stability platform. The feasibility of the application of the non-common-view axis alignment method to the airborne laser communication system is verified.

Занятия в вузе: гуманитарный аспект – «сладкий сон» и реальность в повседневной деятельности педагогов высшей школы

The article discusses the author’s forms and methods of work in the course of teaching disciplines of the hu-manities cycle, aimed at activating students in cognition of the studied material, developing their skills in con-ducting scientific discussion. Methodologically, the study is based on empirical work, which involved general scientific methods and techniques (observation, analysis, generalization), as well as special (heuristic, reverse link method, survey, peer-to-peer dialogue). The aim of the study is to represent the general idea of selecting an intensive direction of conducting classes due to the strict time limit. To achieve it a number of tasks were accomplished, including: definition of modern role functionality for teacher and student, characterization of the educational process from the point of view of its restructuring in the direction of cognitive activity activation of students through the introduction of innovative forms and methods of work, identification of key points of the author's methodology of lecture and seminar classes, effectively tested in Kuban universities, recommenda-tions formulation. Conclusion dwells upon the fact that the position of a teacher in higher education should be active, then the solution to the task of improving the quality of education will become real.

Bayesian binary regression using power and power reverse link functions: an application to premature birth data

This study aims to determine factors associated (and quantify) with prematurity through binary regression models, considering power and reverse power link functions, with asymmetric characteristics. As criteria for the model selection, the Bayesian Deviance Information Criterion (DIC), predictive evaluation, and residual analysis. All models analyzed presented similar predictive capacity, however, the model with a reverse power logit link function, with asymmetry parameter =0.336 was chosen, since it presented the lowest value of DIC=3,203, residues that indicated a good fitted of the model. There was an association of prematurity with the following variables: maternal - age over 35 years (OR=1.485), with a partner (OR=0.731), and primiparous (OR=1.307); of pregnancy and childbirth - multiple pregnancy (OR=36.360), cesarean childbirth (OR=1.337) and number of prenatal consultations less than seven (OR=3.305); and newborns of white race/skin (OR=0.731) and presence of congenital malformation (OR=2.663). Considering the proposed criteria, an asymmetric link function (reverse power logit) was the most parsimonious for the model. From this, there were high chances of factors associated with the occurrence of prematurity, indicating the need for actions to minimize them.

A Review of Chronic Pain with Depression and/or Anxiety Comorbidities in the Indian Population

Chronic pain and psychiatric conditions often coexist with shared risk factors and a reverse causal link. Depression and anxiety comorbidities are associated with increased pain intensity, less favorable response to treatments, and higher medical costs. The management of psychiatric comorbidities in chronic pain conditions is less explored in India. This paper aims to review the current literature landscape of comorbid depressive and/or anxiety disorders with chronic pain conditions in the Indian populations and identify need gaps for future research. A literature search on MEDLINE database and other sources conducted from January 2010 through March 2020 retrieved 84 shortlisted eligible articles and their findings were synthesized into a narrative review. There was a high prevalence of comorbid depression and anxiety with chronic pain observed across multiple pain etiologies and population groups in the Indian setting. Women had a higher burden of psychiatric comorbidities in chronic pain conditions compared with men. Poor socioeconomic conditions and pain severity were important risk factors that predisposed individuals to psychological distress. There was limited data on evidence-based management of chronic pain and comorbid depression or anxiety for Indian populations. Barriers toward effective pain management in India occur at the level of patients, physicians, or healthcare systems; some of these challenges relate to patient’s health-seeking behavior, stigma associated with psychiatric treatment, physician awareness, and education, and access to pain medications. Future initiatives are needed toward building an evidence base for effective management of pain and comorbid psychiatric conditions in India.

The Construction of Decision Model of Multi-channel Closed-loop Supply Chain Based on Big Data

In today's era, science and technology have undergone tremendous development, and the research on big data technology has become more and more mature. Many areas of human life have begun to apply big data technology, and big data technology has indeed brought more convenience to human life. With innovation, human life has also become better because of the development of big data. With the increase of people's awareness of environmental protection and sustainable development, more and more scholars have begun to pay attention to the research of multi-channel closed-loop supply chain. The return products caused by reverse logistics greatly affect the supply chain inventory system and the butterfly effect of the supply chain. This paper uses the Agent technology in big data to construct a multi-channel closed-loop supply chain decision model, and applies the Agent technology to the research of multi-channel closed-loop supply chain inventory and butterfly effect. This paper analyzes the functional agents included in each structural agent in the closed-loop supply chain, designs the simulation process, and designs the final data collection and analysis. Through the analysis of the simulation results, find out the influence of the reverse logistics recycling and return links and the changes in inventory control parameters on the butterfly effect of the members of the closed-loop supply chain at all levels, and provide guidance for the members of the closed-loop supply chain to formulate reasonable and effective inventory control strategies Sexual opinions.

A Unified Framework for Full-Duplex Massive MIMO Cellular Networks With Low Resolution Data Converters

In this work, we provide a unified framework for full-duplex (FD) massive multiple-input multiple-output (MIMO) cellular networks with low-resolution analog-to-digital and digital-to-analog converters (ADCs and DACs). An objective of this work is to derive an accurate model to account for a wide variety of network irregularities and imperfections, including loopback self-interference (SI) that arises in full-duplex systems and quantization error from low-resolution data converters. Our contributions for forward and reverse links include (1) deriving signal-to-quantization-plus-interference-plus-noise ratio (SQINR) under pilot contamination, linear minimum mean square error (LMMSE) channel estimation and channel hardening; (2) deriving closed-form and approximate analytical expressions of spectral efficiency; (3) deriving asymptotic results and power scaling laws with respect to the number of quantization bits, base station antennas, and users, as well as base station and user equipment power budgets; and (4) analyzing outage probability and spectral efficiency vs. cell shape, shadowing, noise, cellular interference, pilot contamination, pilot overhead, and frequency reuse. Cell shapes include hexagonal, square, and Poisson Point Process (PPP) tessellations. In simulation, we quantify spectral and energy efficiency as well as the impact of SI power, inter-user interference, and cell shape on outage probability. We carry out the analysis for sub-7 GHz long term evolution (LTE) bands and then extend the framework to support millimeter wave (mmWave) bands.

THE RELATIONSHIP BETWEEN FINANCIAL INCLUSION AND INCOME INEQUALITY; EVIDENCE FROM TURKEY

The purpose of this study is to assess the impact of financial inclusion on income inequality in Turkey using the VAR approach from 2010 to 2021. The principal component anaysis technique is employed to create our own indicator representing financial inclusion, which contains the number of POS devices, the number of bank accounts, and the number of ATMs. The findings indicate that there is a reverse link between financial inclusion and income inequality. In other words, financial inclusion associated with more equitable distribution of income in Turkey. Furthermore, the Granger causality test is used to establish the direction of causality between variables. It has been observed that financial inclusion granger causes lower income inequality. However, gini index, which measures income inequality does not granger causes financial inclusion. As a results, a unidirectional causality is found from financial inclusion to income inequality in Turkey.

Reversibility of link prediction and its application to epidemic mitigation

Current link prediction strategies are about finding new probable strong relations to establish or weak ones to remove. An interesting strategy is utilizing link prediction to prioritize the edges in the network and finding newly probable established relations. In this paper we will introduce and explain RLP, reverse link prediction, as a new paradigm, and use popular basic scoring methods including CN, JC, AA, RA, and PA, as its core to examine. The test cases are nine datasets. Half of them are contact networks in different levels from personal contact to aviation, and another half is for covering different test situations. After reviewing the edge removal based epidemic mitigation methods, we show that RLP can be used to decrease the epidemics spreading speed as a general method with various link prediction algorithms, and here in this paper, preferential attachment (PA) has the best results overall. But the results heavily depend on the nature of the examined networks: regular, scale-free or small-world. We also propose an easy to understand criteria, path count, for comparing the efficacy of epidemics mitigation methods. RLP can be extended to use other link prediction scoring methods in various types of graphs as well.

Self-Alignment FSOC System With Miniaturized Structure for Small Mobile Platform

This paper presents a miniaturized equipment used in tracking and pointing, and provides a method for free space optical communication among small platform. This scheme uses simple scan mirror and receiver with single photo detector to achieve tracking function. Signal beacon is controlled to rotate around target receiver. Transmitter constantly adjusts emitting direction to track receiver according to received signal intensity, which is send back by reverse laser link. The prototype system is successfully established and its transmitting part consisted by directly modulated laser diode, mechanical collimation lens, and scan mirror is also proved. The receiving end is mainly composed of large area photo detector and short-focal lens. Field-programmable gate array chips set in both ends are used to implement tracking algorithm. This system can track target at speed of 40 mm/s within 2 m distance in an angle range of ±30°. For further application, the system has great potential for miniaturization because of elimination of motors, beacons and cameras in its scheme.