bluuebunny/crossref_metadata_2025 huggingface dataset:
Social media and the possibility of depressive states in young adults
Authors: Świdziński Rafał , Gryc Anna , Golemo Jagna , Nowińska Aleksandra , Lipiec Jakub
Published: November 2022

Social media (SM) is now a popular place for content creation and a means of communication between young adults. Their increasing participation in our lives means that they replace us face to face contacts (FTF), which can affect our mental health. The above changes in communication habits may correlate with the occurrence of depressive states and a sense of social isolation.
The aim of the study is to analyze the relationship between the use of MS and the occurrence of depressive states in young adults on the basis of selected literature. The topic of emotional support and a sense of social isolation will also be discussed. PubMed and Google Scholar databases were used to select the appropriate literature, and only research was used.
 The cited studies on the use of MS and depression showed that people who spent the most time on social media showed an increased risk of experiencing a depressed mood. Another study analyzed the likelihood of depression depending on the method of emotional support. The comparison of emotional support in FTF (face to face) communication with the support obtained through MS showed that the possibility of depressive symptoms was lower for FTF communication and higher for the second method, respectively.
The use of social media among young adults contributes to an increased risk of depression, perceived social isolation and reduced emotional support. Moreover, it has been proven that addiction to MS positively correlates with the presence of depressive symptoms.
Adult acne a medical and psychological challenge of modern dermatology
Authors: Marzęda Madalena , Blicharz Agnieszka , Swatko Tomasz , Małek Anna
Published: November 2022

Introduction and purpose: Acne is a dermatological condition usually associated with adolescents. Although acne occurs less frequently in adults, it can have a major impact on self-esteem and functioning in daily life. In the adult population, acne is far more common in women than in men.

Brief description of the state of knowledge: Adult acne lesions are usually localised in the U-zone, i.e. around the chin, jawline and mouth. There are several forms of adult acne, depending on the time of onset and clinical picture. Several factors are responsible for the occurrence of adult acne. The most important of these are the colonisation of the skin with the anaerobic bacterium Propionibacterium acnes, the overproduction of sebum and excessive keratinisation at the sebaceous gland mouths. In addition, chronic stress, nicotinism, sleep deprivation, obesity, as well as genetic predisposition, hormonal changes or sun exposure have a significant impact. The treatment of adult acne is difficult and long-lasting, usually combining pharmacology with cosmetological treatments. In the initial stage, it is based on topical retinoids, followed by the addition of azaleic acid, benzoyl peroxide and antibiotics.

Summary: The treatment of adult acne is a challenge for dermatologists. It is important to inform the patient about the months-long course of the disease and treatment before the beginnig of treatment. Acne is often associated with lower self-esteem and reduced self-confidence, and even depression and relationship difficulties. For this reason, a holistic approach to the patient and treatment, is extremely important.  With proper patient awareness, the chances of successful treatment are much higher.
What does the future look like - home hemodialysis
Authors: Buczek Weronika , Wiśniewski Mikołaj , Oleszczuk Rafał , Kozińska Iga , Oleszczuk Anna , Grzebalska Agnieszka M.
Published: November 2022

Home hemodialysis (HHD) is a discovery from 1961 that is now experiencing a revival. It is a convenient and modern method of renal replacement therapy that allows the patient to undergo hemodialysis sessions at home. Due to the growing interest in home hemodialysis, we decided to present the potential of this renal replacement method, show both its benefits and complications resulting from its use.

Undoubtedly, HHD has many benefits resulting mainly from the possibility of regulating the duration of the sessions and increasing their frequency. However, this method is also burdened with numerous complications. There are training courses in the use of HHD for patients who have just been diagnosed with end-stage renal disease as well as for patients undergoing dialysis using other methods. Appropriate patient selection is an important factor for the success of home therapy. There is a fierce battle in the home hemodialysis machine market. Manufacturers are outdoing each other in innovative technologies to ensure ease of use, trouble-free operation and minimize complications. The costs of home hemodialysis include more components than the dialysis treatment itself.

Home hemodialysis gives patients comfort and independence above all. This is part of nephrology that undoubtedly requires a lot of work and development, but is certainly an invention of the 21st century.
Genetic concepts in inherited cardiac conditions
Authors: Bueser Tootie , Hargrave Joanne , Nuthoo Soraya , Damianopoulos Adam
Published: November 2022

Advances in techniques and reduced costs have led to increased use of genetics in cardiovascular care and, in particular, the field of inherited cardiac conditions. While there are specialist services for the diagnosis and management of these conditions, patients and family members are seen across cardiovascular services. Therefore, all nurses need to be aware of the various aspects of care required by these patients and have confidence in engaging in discussions around their genetic healthcare needs. This article is the first in a series about genetics. It provides information about basic genetic concepts relating to inherited cardiac conditions, the process and uses of genetic testing, the potential psychosocial impact and the key role of the nurse in genetic healthcare for patients and their families.
Falls 3: Medication can harm as well as heal: how it can increase the risk of falls
Authors: Nazarko Linda
Published: November 2022

Older people and people who have long-term conditions have an increased risk of falls. One of the factors that can increase the risk of falls is medication. This article, the fourth in a series, examines how medication can affect fall risk and how medication review can reduce the risk of falls.
Child to parent abuse: Handling disclosures
Authors: John Michelle
Published: November 2022

Child to parent abuse is more widespread than you might assume and if a parent discloses a problem, it is highly likely they will do so to their child's school. Michelle John explains how such disclosures can be handled by schools
Negative news cycle: How can we help young people to cope?
Authors: Thornton Stephanie
Published: November 2022

The last years have been characterised by disasters and tragic events, leading to an extremely negative news cycle. In the second article in this mini-series, Stephanie Thornton discusses how we can help young people cope with these stresses.
New school year, new term, new opportunities?
Authors: White Sharon
Published: November 2022

Schools play a huge part in the lives of children and young people and can prove to be great partners for school nurses in promoting their health and wellbeing. Sharon White shares a case study of a successful whole-school mental health approach.
Housing Price Prediction by Divided Regression Analysis
Authors:   Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor, Malaysia, Goh Yann Ling , Goh Yeh Huann ,   Faculty of Engineering, Kolej Universiti Tunku Abdul Rahman, Jalan Genting Kelang, Setapak, 53300 Kuala Lumpur, Malaysia, Yip Chun-Chieh ,   Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor, Malaysia, Ng Kooi Huat ,   Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Jalan Sungai Long, Cheras, 43000 Kajang, Selangor, Malaysia
Published: November 2022

Regression analysis is a statistical methodology to investigate the relationship between the dependent variable and the independent variables. In current era with the trend of big data, we might face some problems when performing statistical analysis for the massive volume of data. For example, the heavy burden of the computing load will cause the computation to be time consuming, the accuracy of the results might be affected in view of the vast volume of data. Hence, divided regression analysis is proposed to reduce the burden of the computing load. This approach performs subdivision of the dataset into several unique subsets, then the multiple linear regression is fi tted into each subset. The results obtained from each subset are then combined to obtain a divided regression model which is treated as the original overall dataset. The dataset used in this paper is KC Housesales Data, obtained from the Kaggle website. The dataset contains statistics information about the housing price, for example, size of lot, size of living area and selling price of the house. The goal of this paper is to predict the selling price of a house from the given attributes. The dataset is partitioned into fi ve subsets. Consequently, multiple linear regression is fi tted for each subset. Then, some model adequacy checking will be applied on the models. The test in determining the existence of multicollinearity in the models is rather important as well because the collinearity among the independent variables will affect the overall results. Hence, the variance infl ation factor (VIF) approach is used to determine the existence of multicollinearity. Finally, the divided regression model is obtained by combining results from all the subsets and the validity of divided regression model is verifi ed.
2-Methylimidazole-modifi ed Iron Metal-organic Framework as an Effi cient Methylene Blue Adsorbent
Authors:   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China, Zhao Yingxin , Hu Hao ,   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China, Zhang Shengyu ,   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China, Feng Shiya ,   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China, Yang Yun ,   College of Chemistry and Environmental Engineering, Hanjiang Normal University, Shiyan, Hubei 442000, China, Li Xiongjian ,   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China, Yang Shuijin ,   College of Chemistry and Chemical Engineering, Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, Hubei, 435002, China
Published: November 2022

Metal organic frameworks have a wide range of applications in the fi eld of environmental remediation. In this study, Fe-BDC/Fe-2MI composites were synthesized by one-pot solvothermal method. By studying the adsorption performance of methylene blue (MB) in wastewater, it was confi rmed that Fe-BDC/Fe-2MI has excellent adsorption properties. When the initial molar ratio of FeCl3 .6H2O: H2BDC: 2-MI is 1:1.5:10, the adsorbent has the best adsorption performance. At the same time, the effects of different pH (2-10), temperature (303-323K) and initial concentration of adsorbate (30-90mg/L) on the adsorption capacity were further explored. It was found that when pH=6.0, T=303K was favorable for Fe-BDC/Fe-2MI to adsorb MB. The adsorption process conformed to the Langmuir isotherm adsorption model, indicating that it was a monolayer adsorption which was a good adsorption process. Thermodynamic parameters show that the adsorption process is a spontaneous exothermic reaction. These results demonstrated that Fe-BDC/Fe-2MI composites possess potential practical application value.
Multi Objective Optimization Of Stir Casting Process Parameters Using Technique For Order Of Preference By Similarity To Ideal Solution (TOPSIS)
Authors:   Department of Mechanical Engineering, K.S.R College of Engineering, Tiruchengode, Tamilnadu, India, Palanivelu Vignesh , Palanisamy Senthilkumar ,   Department of Mechanical Engineering, K.S.R College of Engineering, Tiruchengode, Tamilnadu, India, Murugesan Seenivasan ,   Department of Mechanical Engineering, KGISL Institute of Technology, Coimbatore, Tamilnadu, India
Published: November 2022

This work deals with the fabrication of the aluminium metal matrix composite (AMMC) reinforced with titanium material and stir casting process is employed for the fabrication of the aluminum metal matrix composite. The process parameters considered in this work are squeeze pressure, squeeze time, die preheating temperature and stirring speed. L9 orthogonal array is used to conduct the experiments and the AMMC is tested for its compressive strength, tensile strength and hardness. A novel optimization tool, Technique For Order Of Preference By Similarity To Ideal Solution (TOPSIS) is used to rank the optimal process parameters.
Design of a Novel Circularly Polarized MIMO Antenna with Enhanced Isolation for Ultra-wideband Communication
Authors: Zhang Lei , Feng Quanyuan , Khan Muhammad K.
Published: November 2022

In this paper, we propose a circularly polarized (CP) ultra-wideband (UWB) MIMO antenna. Compared with common linearly polarized (LP) UWB antenna, the proposed antenna can excite circular polarization (CP) mode for WLAN communication and its impedance bandwidth can also fully cover UWB spectrum. It consists of identical circularly polarized antennas. Each unit adopts circular monopole with extended orthogonal rectangle patch to realize broadband and symmetrical rectangular ground with slot in the diagonal of each antenna unit to achieve circular polarization for WLAN band. It has a very compact size and the dimension is 25 × 51 × 0.8 mm3. The impedance bandwidth of the proposed antenna is from 3.1 GHz to 13.5 GHz, with average gain of 4 dBi, fully covering UWB bandwidth and enhanced by 38%. At the same time, circular polarization is achieved by embedding two symmetrical rectangular slot structures in the two opposite corners of every antenna unit. The extended orthogonal rectangle patch is introduced to enhance impedance bandwidth and broaden axial ratio (AR) bandwidth. The measured 3 dB axial ratio (AR) bandwidth is 1.8 GHz (4.7-6.5 GHz), fully covering WLAN band. Meanwhile, the slit slot between antenna units and rectangular openings are introduced to achieve high isolation. The proposed antenna keeps ECC (envelope correlation coefficient) below 0.01, which showing good isolation and diversity characteristics. The proposed antenna can simultaneously operate in the UWB spectrum and exhibit circularly polarized (CP) radiation characteristic in WLAN.
Genetic diversity of weedy rice (Oryza sativa f. spontanea) populations in Sri Lanka: An application of Self Organizing Map (SOM)
Authors: Weerakoon Shyama , Somaratne Seneviratne
Published: November 2022

Abstract. Weerakoon SR, Somaratne S. 2021. Genetic diversity of weedy rice (Oryza sativa f. spontanea) populations in Sri Lanka: An application of Self Organizing Map (SOM). Asian J Agric 5: 35-43. Weedy rice (WR) (Oryza sativa f. spontanea) has become a major threat in rice cultivation. Discrimination of WR from cultivated rice is difficult since agro-morphology of WR and cultivated rice are overlapping. Molecular markers are useful and can be an informative tool for estimating genetic diversity and relationships in closely related WR eco-types. Self-Organizing Maps (SOM) is an interesting and promising classification tool employing an innovative and data-driven classification method based on unsupervised artificial neural networks. The present study focused on exploring the potential use of SOM to classify WR populations of different eco-climatic zones in Sri Lanka using agro-morphological and molecular data. Separate SOMs for each set of variables, agro-morphological and molecular data were developed. The best SOM was chosen based on the error performance. Findings of SOM analyses showed that certain morphological characters (seedling height, leaf blade width, leaf blade length, culm strength, panicle shattering, seed coat color and leaf angle) and certain molecular characters detected from SSR primers (RM 11, RM 21, RM 14, and RM 280) are important in separation of different WR eco-types satisfactorily. SOM clustering of cultivated, wild, and WR eco-types indicated specific patterns of grouping with respect to climatic conditions of the country. WR eco-types in dry zone and wet zone of the country are closely related to Oryza nivara and O. rufipogon respectively.
Structured Intervention Units and Mental Health in Canadian Federal Prisons: A Policy Assessment of Bill C-83
Authors: Adamjee Lamiah
Published: November 2022

On 21 June 2019, the federal government passed Bill C-83: An Act to amend the Corrections and Conditional Release Act and another Act with the primary intention of eliminating the use of administrative and disciplinary segregation in Canadian federal prisons and replacing the practice with structured intervention units. This new correctional model would serve as a way to separate unsafe inmates while ensuring they receive appropriate mental health services, increased time outside of their units, and meaningful human contact. The conception of Bill C-83 was largely a result of a history of widespread criticisms that administrative segregation infringed on human rights, posed significant mental health concerns, and violated the Canadian Charter of Rights and Freedoms. While the reform mitigated immediate pressure on the federal government to act, several advocacy groups, legal experts, politicians, and other stakeholders voiced negative opinions and indicated the shortcomings of the new units and the impact they will have on the health of prisoners. Bill C-83 has the potential to prompt significant change in the context of prison health reform, but this will be dependent on the federal government’s coordination with Correctional Services Canada.
Children’s centres, families and food insecurity in times of crisis
Authors: Baker William , Bakopoulou Ioanna
Published: November 2022

We examine how children’s centres in a major city in England responded to food insecurity during the COVID-19 pandemic by helping to run ‘FOOD Clubs’ to support families. Drawing on data from semi-structured interviews with children’s centre staff, we analyse how clubs were organised, why people joined them, and the range of benefits parents derived from them. We extend the literature on food insecurity which focuses heavily on the rise of foodbanks. Our data also informs broader policy debates around supporting parents in poverty, effective early years provision and the challenges facing families experiencing food insecurity.
Method for measuring the center of mass and moment of inertia of a model using 3D point clouds
Authors: Yang Yubang , Sun Shuyu , Huang Tengchao , Qian Lujing , Liu Kui
Published: November 2022

We propose a method for measuring the center of mass and moment of
inertia of a model using 3D point clouds. First, we use point cloud
registration and segmentation to obtain point clouds of model parts
with different material densities. Then, we correct the point cloud
coordinates by principal component analysis, and we perform 2.5D
volume calculations in three directions. Finally, we input the
material density for each model part, perform point cloud
reconstruction, and calculate the center of mass and moment of
inertia. In experiments, we measured the center of mass and moment of
inertia simultaneously by using multiple time-of-flight cameras. The
results demonstrated that the proposed method accurately measured the
center of mass and moment of inertia with errors of

<

1

m
m

and

<

3

%

, respectively. This is a promising
approach for automatically measuring models of aircraft, cars,
etc.
Multiplane holographic augmented reality head-up display with a real–virtual dual mode and large eyebox
Authors: Lv Zhenlv , Xu Yuan , Yang Yan , Liu Juan
Published: November 2022

We propose a multiplane augmented reality (AR) head-up display (HUD) with a real–virtual dual mode based on holographic optical elements (HOEs). The picture generation unit (PGU) is only a single free-focus projector, and the optical combiner includes a HOE lens (HOEL) for long-distance virtual image display and a HOE diffuser (HOED) for in-plane real image display. A HOED with directional scattering characteristics in the real image mode can significantly increase the size of the eyebox (EB) without increasing the size of the HOE, and a HOEL with a flexible design for the optical focal length in the virtual image mode can be used to achieve a different depth of the AR display. The proposed AR HUD system, which has a compact structure and offers high light transmittance, high energy usage, a multiplane display, and a large EB, is expected to be widely used in the future.
High-throughput and high-accuracy diagnosis of multiple myeloma with multi-object detection
Authors: Mei Liye , Shen Hui , Yu Yalan , Weng Yueyun , Li Xiaoxiao , Zahid Kashif Rafiq , Huang Jin , Wang Du , Liu Sheng , Zhou Fuling , Lei Cheng
Published: November 2022

Multiple myeloma (MM) is a type of blood cancer where plasma cells abnormally multiply and crowd out regular blood cells in the bones. Automated analysis of bone marrow smear examination is considered promising to improve the performance and reduce the labor cost in MM diagnosis. To address the drawbacks in established methods, which mainly aim at identifying monoclonal plasma cells (monoclonal PCs) via binary classification, in this work, considering that monoclonal PCs is not the only basis in MM diagnosis, for the first we construct a multi-object detection model for MM diagnosis. The experimental results show that our model can handle the images at a throughput of 80 slides/s and identify six lineages of bone marrow cells with an average accuracy of 90.8%. This work makes a step further toward full-automatic and high-efficiency MM diagnosis.
Single-cavity dual-comb modelocking and applications
Authors: Keller Ursula
Published: November 2022

Dual-comb laser sources with two optical frequency combs with different comb spacings and their applications are of high interest for many applications. We describe two breakthrough methods which enables record low-noise single-cavity dual-comb generation.
Development of hybrid organic-inorganic polyurethane films based on Castor oil using sol-gel route for photonics application
Authors: de Freitas Beatriz Damasio , Onishi Bruno Seiki Domingos , Bortoletto-Santos Ricardo , Ribeiro Sidney José Lima
Published: November 2022

Hybrid organic-inorganic polyurethane films based on Castor Oil (CO) was made and characterized by FTIR-ATR, UV-Vis, and fluorescence spectroscopy, showing blue luminescence.

The present work is an initial investigation of the application of the films in the photonics field.
Study of Photoconductive Properties of Hybrid Organic-Inorganic Perovskite Semiconductors by Space Charge Grating Technique
Authors: Salgado Ana Karem Vega , Korneev Nikolai , Mansurova Svetlana
Published: November 2022

We present results of theoretical and experimental study of photo-EMF induced by running grating in perovskite thin films, parameters such as electron and hole photoconductivity relaxation time, ambipolar diffusion length, minority carriers drift mobility are obtained.
Preparation of Fluorescent Nanodiamond Doped Photoresist for Fabrication via Two-Photon Polymerization Technique
Authors: Couto Filipe Assis , Otuka Adriano José Galvani , Mendonça Cleber Renato
Published: November 2022

Nanodiamonds containing NV− color center were incorporated into the photoresist used for microfabrication via two-photon polymerization. The dopant concentration and its effects in the fabrication process were studied, and structures containing NV− center were fabricated.
Production and characterization of thin carbon films on cobalt buffer-layer by the sputtering technique
Authors: Barreto Luiz M. M. , da Silva Davinson M. , Santos Antonio D. , Araki Koiti , Nakamura Marcelo , Kassab Luciana R. P.
Published: November 2022

Carbon thin films were produced by sputtering technique on Co buffer-layer prepared at 500°C, and thermal annealed after the deposition. Raman results are presented, and normalized transmittance measurements showed potential for applications on optical limiters.
Hysteretic behavior for transmission curve and soliton temporal separation in multi-pulsing regime for mode-locked fiber lasers
Authors: Campos Cecília L. A. V. , Acioli Lúcio H. , de Miranda Marcio H. G.
Published: November 2022

We present an experimental study of the hysteretic behavior of an Yb mode-locked fiber laser (MLFL) in a multi-pulsing regime. Our main focus is on the internal nonlinear transmission curve of the laser, which is fundamental to obtain the mode-locking regime. We have also observed hysteresis in the temporal separation between dispersive bound solitons. These results have been interpreted in terms of the negative and positive feedback and the redistribution of the solitons energy.
Flexible and stretchable low-noise organic photodiodes for biometric monitoring
Authors: Fuentes-Hernandez Canek , Park Youngrak , Kim Kyungjin , Chou Wen-Fang , Larrain Felipe A. , Graham Samuel , Pierron Olivier N. , Kippelen Bernard
Published: November 2022

Soft and stretchable semiconductors could enable seamless integration of wearable or implantable sensors with biological systems. We report on flexible and stretchable organic photodiodes with silicon-photodetector like performance and applications in biometric monitoring.
Topologically Optimized Devices for Single Mode Integrated Photonics at Visible Wavelengths
Authors: de Souza Arthur Clini , Gabrielli Lucas Heitzmann
Published: November 2022

Nanophotonic devices are designed using topological optimization to operate at wavelengths in the visible range used for biomedical imaging. Compact and low-loss bend, crossing, splitter and multiplexer are numerically demonstrated.
High-cooperativity degenerated mechanical modes in diamond OMC cavities
Authors: Moraes Flávio C. D. , de Melo Emerson G. , de Aguiar Gabriel H. M. , Wiederhecker Gustavo S. , Mayer Alegre Thiago P.
Published: November 2022

In this work, we study a diamond nanobeam design in which two nearly-degenerated mechanical modes are coupled to a single optical mode in a high-cooperativity regime. Both modes’ resilience was tested against fabrication defects.
Phonon trapping states and blockade effect in a hybrid micromaser system
Authors: Molinares Hugo , Eremeev Vitalie , Orszag Miguel
Published: November 2022

For a random atomic beam interacting with an optomechanical cavity, the synchronization of phonon and photon trapping states is proved. With the system connected to a squeezed phonon reservoir, the phonon blockade effect is realizable.
Dynamical transfer of quantum states in optomechanical hybrid system
Authors: Molinares Hugo , Eremeev Vitalie , Orszag Miguel
Published: November 2022

In a hybrid framework, consisting in a three-level atom-cavity-oscillator system, we show that dynamical transfer of nonclassical states between the mechanical oscil-lator and the cavity field is achieved with a high fidelity.
Observation of nonclassical correlations in biphotons generated from an ensemble of pure two-level atoms
Authors: Araújo Michelle O. , Marinho Lucas S. , Felinto Daniel
Published: November 2022

We report the experimental observation of nonclassical correlations for an unfiltered spontaneous four-wave mixing process in an ensemble of cold two-level atoms, confirming theoretical predictions for the violation of a Cauchy-Schwarz inequality. We obtain R = 1.98 ± 0.03 > 1.
Diode-pumped YbEr:glass optical frequency comb
Authors: Nardelli N. V. , Leopardi H. , Schibli T. R. , Cruz F. C. , Fortier T. M.
Published: November 2022

We describe a robust and compact optical frequency comb based on a diode-pumped YbEr:glass laser. Using commercially available telecom components, this can be a low-cost short pulse source providing very low AM and FM noise.
Nonlinear Refraction of CVD Monolayer ReS2 in the Femtosecond Regime
Authors: Maldonado M. , Gomes A. S. L. , Coronel E. D. , Steinberg D. , Zapata J. D. , Thoroh de Souza E. A. , de Matos C. J. S.
Published: November 2022

In this work, we report the first nonlinear refraction (NLR) measurements of CVD monolayer ReS2. Using an 800-nm femtosecond laser, a high nonthermal NLR of 2.39x10−8cm2/W was obtained, 3× higher than that of monolayer WS2.
Nonlinear refractive analisys of Dy3+ doped TeO2ZnO glasses
Authors: Alves R. T. , Lima I. T. , Darabian H. , Moreira L. , Bell M. J. V. , Anjos V.
Published: November 2022

Here, we report CA Z-Scan results for 80TeO2.20ZnO:xDy3+ glasses (x =1.0,2.0mol%). Both samples presented a self-focusing lens like behavior, with a nonlinear refractive index varying from (5.87 ± 0.04)10
−
15 cm2/W to (20.37 ± 0.09)10
−
15 cm2/W.
Study of Mice Ovaries using Optical Coherence Tomography
Authors: Amaral Marcello Magri , Sun Aixia , Li Yilin , Wang Ping , Jiao Zexu , Zhou Chao
Published: November 2022

We investigate the age-related follicle and oocyte morphological differences using Optical Coherence Tomography (OCT). The oocyte’s development stages were observed and discussed. OCT technique can provide a real-time imaging tool for future ovarian tissue characterization.
Lasing without inversion based on magnetically assisted gain in coherently prepared cold atoms
Authors: de Aquino Carvalho J. C. , de Lima A. D. M. , Tabosa J. W. R.
Published: November 2022

we report here the work of obtaining with the construction of a ring cavity around a cloud of cold atoms having magnetically assisted gain [Phys. Rev. A 105, 023706 (2022)].
Raman Spectroscopy of irradiated and non-irradiated plastics
Authors: Dipold Jessica , Bereczki Allan , Pinheiro Gustavo , Vasconcelos Kamilla , de Freitas Anderson Zanardi , Wetter Niklaus U.
Published: November 2022

Understanding radiation damage to plastic is of great interest for possible construction applications. Two different plastics were gamma irradiated and their property changes were studied with micro-Raman spectroscopy, showing promising results in increasing its toughness.
On the influence of Pr3+ ions doping on the near-infrared emission of tellurite glasses
Authors: Chacaliaza-Ricaldi J. , C. G. Lozano , H. J.L. Clabel , Messaddeq Y. , Rivera V.A.G. , Marega E.
Published: November 2022

The enhancement of the near-infrared emission of tellurite glasses doped with Er3+ through co-doping with Pr3+ ions was studied, in addition to the analysis of the spectroscopic properties.
In vitro assays and nanothermometry studies of infrared-to- visible upconversion of nanocrystalline Er3+,Yb3+ co-doped Y2O3 nanoparticles for theranostic applications
Authors: Dos Santos L.F. , Martins J.C. , Lima K.O. , Gomes L.F.T. , de Melo M.T. , Tedesco A.C. , Carlos L. D. , Ferreira R.A.S , Gonçalves R.R.
Published: November 2022

Luminescent spherical and monodisperse Er3+, Yb3+ co-doped Y2O3 nanoparticles were synthesized by homogenous precipitation followed by annealing. These nanoparticles exhibits high cell viability. On the basis of luminescence nanotermometry, the nanoparticles exhibits features of primary thermometer with high thermal sensitivity.
Remineralization and Surface Staining Assessment of Artificial Root Caries Treated with Bioactive Glass-Ceramic
Authors: de Almeida Cecília V. V. B. , da Silva Evair J. , Mota Cláudia C. B. O. , Tirapelli Camila , de Andrade Audrey N. , Valente Denise , Gomes Anderson S. L.
Published: November 2022

Biosilicate and silver diamine fluoride were tested for remineralization through optical coherence tomography, and surface staining through CIELAB system in root caries. Both showed remineralization, however biosilicate showed lower surface staining.
Synthesis, structural, morphological, and spectroscopic studies on RE3+-doped NaTaO3: a perovskite like structure for Biophotonics applications
Authors: da Costa A.C. , Labaki H. P. , Goncalves R. R.
Published: November 2022

In this work, we report the synthesis, structural, morphological, and spectroscopy of sodium tantalate without doping and doped with RE3+. There was a formation of particles of approximately 60 nm and luminescence, characterizing a potencial biological application.
Formation of microbubble and micro-holes with low power laser on Ti nanofilms
Authors: Ascencio-Rodriguez Joaquín A. , Mansurova S. , Ramos-García R.
Published: November 2022

In this work, we perform drilling of micro-holes and formation of microbubbles in titanium thin films. All these processes occur due the high titanium absorption at near infrared wavelength, the superheating of titanium produce high quality micro-holes which can be create simultaneously with different laser beam spots. Otherwise, when titanium interacts with water superheating evaporates water and created microbubbles. Every single spot generates a single microbubble and exploiting the spatial resolution of an optical tweezers is possible generate multiple microbbubles into two dimensional arrays. This work provides a controllable way to develop a micropatterning technique and form microbubbles, which is expected to have many applications in material sciences and biology.
Prototype for Testing Sunglasses for Traffic Light Safeness
Authors: Loureiro Artur d. , Ventura Liliane
Published: November 2022

A prototype was developed for user´s self-testing of sunglasses for driving land vehicles safeness. The visible light (category of the lenses) and traffic light transmittances, as required by sunglasses standard ISO 12311:2013 [1], are measured and evaluated.
Attenuation of Ultrasonic Modes in Optical Fibers for Sensing Applications
Authors: Marashi Cameron , Bradford Philip , Peters Kara
Published: November 2022

We examine the measurement of acoustic mode attenuation in optical fibers for sensing applications using both an internal fiber Bragg grating and laser Doppler vibrometry.
Photonic Bandgap Fiber Microlaser for Optofluidic Sensing and Tagging
Authors: Wang Yanqiong , Gong Chaoyang , Yang Xi , Liu Yiling , Wei Lei , Rao Yun-Jiang , Gong Yuan
Published: November 2022

We report hollow-core photonic bandgap fiber microlasers that integrate the functions of sensitive biodetection (limit of detection 0.06 ng/μL) and mass tagging (encoding capacity > 22500), applicable to mass screening scenarios.
Hollow-core fiber cavity-enhanced photothermal spectroscopy for oxygen detection
Authors: Hong Yingzhen , Bao Haihong , Gao Shoufei , Ho Hoi Lut , Yingying Wang , Jin Wei
Published: November 2022

We report an all-fiber oxygen sensor based on cavity-enhanced photothermal spectroscopy at 761 nm. By using a 1-cm-long high-finesse Fabry-Perot cavity to amplify the detected photothermal signal, we demonstrated oxygen detection down to 6 ppm.
Micro-Indentation on Bovine and Human Cartilage with Phase-shifted Fiber Bragg Gratings in PM Fibers
Authors: Buchfellner F. , Fiedler S. , Danalache M. , Daniel C. , Bian Q. , Trautwein B. , Hofmann U. K. , Roths J.
Published: November 2022

Stiffnesses of healthy and degenerated articular cartilages were investigated using micro-indentation based on phase-shifted fiber Bragg gratings in PM fibers. Elasticities of superficial layers (< 50 µm) were resolved with minimally detectable forces yielding micro-Newton scale.
An Optically Gated Laser-Driven FOG Suitable for Trans-Pacific Inertial Navigation
Authors: Wheeler Jonathan M. , Digonnet Michel J. F.
Published: November 2022

We report a fiber-optic gyroscope driven by a laser broadened by phase modulation with noise. The gyroscope has a 0.9-mdeg/√h angle random walk and a record-breaking 12.6-mdeg/h drift, low enough for trans-Pacific aircraft navigation.
Large Fiber-Optic Seismograph detecting the rotation rate caused by natural factors as well as mining activities
Authors: Kurzych Anna , Dudek Michał , Jaroszewicz Leszek R.
Published: November 2022

Significance of rotational seismology has been intensified in the last decade, especially in geological and engineering aspects. The paper presents large Fiber-Optic Seismograph with its rotational motion recordings induced by natural factors as well as mining activities.
Strain measurement based on Brillouin gain spectrum under non-uniform strain using neural network
Authors: Naruse Hiroshi , Kurokawa Takaya , Narieda Shusuke
Published: November 2022

This study proposes a strain measurement method based on the Brillouin gain spectrum under nonuniform strain using a neural network. The basic measurement characteristics are investigated via simulations. Additionally, high-accuracy and high-speed measurements are verified.
Theoretical Model and Calibration of an Optical Fibre Dosimeter for the International Space Station
Authors: Di Francesca Diego , Balcon Nicolas , Cheiney Pierrick , Chesta Enrico , Clement Florence , Girard Sylvain , Mekki Julien , Melin Gilles , Morana Adriana , Roche Martin , Ricci Daniel
Published: November 2022

This paper focuses on the theoretical model, qualification and calibration of an optical fibre dosimeter developed to measure extremely low radiation doses and deployed in the International Space Station in August 2021.
Hybrid Optical Sensing and Communication Over a Multicore Fiber
Authors: Guo Yujian , Ashry Islam , Trichili Abderrahmen , Mao Yuan , Mosquera Juan Marin , Ng Tien Khee , Ooi Boon S.
Published: November 2022

We demonstrate a full–duplex data transmission simultaneously with a distributed acoustic sensing and a fiber Bragg grating–based temperature sensing over a multicore fiber. The communication and sensing systems operate efficiently with negligible crosstalks.
Compensation of phase-noise in pulse-compression phase-sensitive OTDR sensors
Authors: Piñeiro Enrique , Sagues Mikel , Eyal Avishay , Loayssa Alayn
Published: November 2022

We introduce a technique to compensate the performance impairments due to the laser phase noise in long-range pulse-compression DAS sensors. Experiments demonstrate the use of the longest duration pulse compression waveform to date.
Intrinsic Fabry-Perot Interferometer Fiber Sensor Array for Hydrogen Sensing at Room and High Temperatures
Authors: Cao Rongtao , Wu Jingyu , Wang Mohan , Zhao Jieru , Yang Yang , Chen Kevin P.
Published: November 2022

This paper presents multi-point hydrogen fiber sensors using Intrinsic Fabry-Perot interferometer (IFPI) as sensor platforms. Pd-doped TiO2 nano-porous coating was used to detect hydrogen at room temperature and 750°C.
Low-Cost OFDR Distributed Sensing Based on Optical Fiber with Enhanced Rayleigh Backscattering Profiles and Median Filtering
Authors: Wang Qirui , Zhao Kehao , Yi Xinruo , Zhao Jieru , Zhong Shuda , Chen Kevin P.
Published: November 2022

Enabled by sensing fibers with enhanced Rayleigh backscattering profiles, this paper demonstrates an OFDR distributed fiber sensor using a low-cost DFB laser with 1-nm sweep range. Distributed strain sensing was achieved with 24-mm spatial resolution.
Optical Fiber Tip Learns to Identify Liquids
Authors: Zhu Chen , Naku Wassana , Nambisan Anand K. , Gerald Rex E. , Huang Jie
Published: November 2022

We propose and demonstrate an extremely simple fiber-optic tip sensor system to identify liquids through droplet evaporation events on the fiber tip, analyzed using machine learning techniques.
Event classification from distributed interferometric sensor using neural network
Authors: Tomasov Adrian , Dejdar Petr , Cem Ali , Munster Petr , Horvath Tomas
Published: November 2022

The paper presents a combination of a distributed sensor based on a Mach-Zehnder interferometer and an artificial neural network used for event classification. The proposed system achieves almost 99% accuracy in classification into 7 categories.
Fiber-Optic Extrinsic Fabry-Perot Interferometer Inspired Microwave Device: A Novel Ultra-Sensitive Sensing Platform
Authors: Zhu Chen , Huang Jie
Published: November 2022

Inspired by the fiber-optic extrinsic Fabry-Perot interferometer, we report a novel and universal ultra-sensitive microwave Fabry-Perot sensing platform based on an open-ended hollow coaxial cable resonator (OE-HCCR) for sub-nanometer displacement sensing.
Extraction of Gas Rise Features from a Noisy DAS Data in an Experimental Wellbore
Authors: Jagadeeshwar Tabjula L , Sharma Jyotsna
Published: November 2022

DAS is a promising wellbore monitoring technology. However, the desired signals are often overwhelmed by noise. We present a suite of computationally inexpensive techniques for real-time extraction of gas-signatures from noisy DAS acquired in a 5163-ft-deep wellbore.
Concept for Raman Distributed Temperature Sensing in Optical Fibers based on Standard C-Band Spectrometer
Authors: Renner Esther , Haerteis Lisa-Sophie , Scheffter Kilian , Schmauss Bernhard
Published: November 2022

We propose a concept for Raman distributed temperature sensing based on L-band excitation and C-band Anti-Stokes detection. The concept is demonstrated by interrogation of 1500 m fiber with incoherent optical frequency domain reflectometry.
Differential Refractometric Platform for Reliable Biosensing based on Long-period Gratings and Molecular Imprinting
Authors: Mendes João P. , Coelho Luís C. C. , Pereira Carlos M. , Jorge Pedro A. S.
Published: November 2022

A new (bio)sensing platform based on differential refractometric measurements was developed. The sensing scheme is based on the combination LPFGs/MIP/NIP, involving a dual channel system for real-time compensation of non-specific interactions. The correction system improves the sensor behavior by reducing the response to interferents by 30%.
200km ultra-long random fiber laser and sensor
Authors: Han Bing , Rao Yunjiang , Wu Han , Liu Yang , Dong Shisheng , Wang Zinan , Xu Jiangming , Ma Lingmei
Published: November 2022

Record-long (200 km) single-ended random fiber laser and sensor for safety monitoring of long-haul powerlines are proposed and demonstrated based on combination of high-order random lasing pump and ultra-low-loss fiber, for the first time.
Increasing the Distance Range of Repeaterless Brillouin-OTDR to 250 km by Optical Amplification
Authors: Joy Tomin , Jostmeier Thorben , Marx Benjamin , Hill Wieland
Published: November 2022

We demonstrate extension of the distance range of repeaterless Brillouin-OTDR distributed sensing to 250 km by using optical amplification. A single-side interrogation scheme is employed without fiber loops or electrical power on the route.
Fiber Optic Distributed Sensing for Ship Hull Monitoring on the Expeditionary Fast Transport Ship
Authors: Williams Caitlin R. S. , Hart Joseph D. , Meiselman Seth J. , Varma Sanjay R. , Lou Janet W. , Pelzman Charles G. , Miller Gary A. , Cranch Geoffrey A.
Published: November 2022

Distributed fiber optic strain and temperature measurements are demonstrated on an Expeditionary Fast Transport ship during normal operation for real-time condition monitoring.
Seismic Detection via Distributed Acoustic Sensing with Hough Transform
Authors: Arioka Takahiro , Nakamura Kentaro
Published: November 2022

We studied a method of seismic detection in which a Hough transform is used to obtain strain data from distributed acoustic sensing using submarine cables.
Fiber Bragg Grating temperature monitoring of helicopter engine mechanical parts on an engine test bench
Authors: Quelene Jean-Baptiste , Salhi Nassim , Desmarcheliers Rudy , Huy Minh-Chau Phan , Cotillard Romain , Rougeault Stephane , Pohl Didier , Laffont Guillaume
Published: November 2022

Fiber Bragg Grating temperature monitoring results of two mechanical parts located in the exhaust system of a helicopter engine test bench are reported and compared to thermocouple and SWIR camera measurements.
Field Test of Telecommunication Facility Localization in OTDR Waveform Using Brillouin Gain Bandwidth
Authors: Oda Tomokazu , Takahashi Hiroshi , Kito Chihiro , Nakamura Atsushi , Koshikiya Yusuke
Published: November 2022

We propose a method for localizing telecommunication facilities in OTDR waveform. The method measures the change in the Brillouin gain bandwidth caused by the cable bending, and the facility location is determined from the bending point.
Characterizing vibration response of fiber cables for distributed acoustic sensing
Authors: Lu Xin , Schukar Marcus , Krebber Katerina
Published: November 2022

The vibration responses of two fiber cables are characterized up to 16 kHz and compared with a standard tight-buffered 900 um fiber. The response of the cables is suppressed due to the cable protection.
Field Demonstration of Localizing Telecommunication Facilities in DVS trace by FDM-Φ-OTDR
Authors: Takahashi Hiroshi , Wakisaka Yoshifumi , Kito Chihiro , Ishimaru Takahiro , Iida Daisuke , Koshikiya Yusuke
Published: November 2022

We present a field demonstration of distributed vibration sensing with FDM-Φ-OTDR in a deployed optical fiber cable network. Additionally, we propose and verify a vibration trace analysis technique that can localize telecommunication facilities.
8 km-Long High-Sensitivity Fiber Optic Seismometer Array for Subway Tunnel Structure Vibration Monitoring
Authors: Huang Wenzhu , Zhang Wentao , Liu Zhi , Huang Jiantao , Li Fang , Du Yanliang
Published: November 2022

A 8 km-long high-sensitivity fiber optic seismometer array is used for subway tunel structure vibration and safety monitoring. The principle of the system are introduced. The experimental scheme and results are given and discussed.
FOS-based thermo-hygrometers in the ATLAS Inner Detector
Authors: Scherino L. , Schioppa E. J. , Arapova A. , Berruti G. M. , Bock W. J. , Borriello A. , Campopiano S. , Consales M. , Cusano A. , Esposito F. , Iadicicco A. , Mikulic P. , Neves T. , Petagna P. , Quero G. , Srivastava A. , Vaiano P. , Zarrelli M. , Zotti A. , Zuppolini S.
Published: November 2022

We present the main steps of FOS (based on LPG and FBG) installation in the CERN-ATLAS experiment for temperature and humidity measurements, from laboratory calibrations and data acquisition chain development, to their installation and operation.
Pipeline Micro Leakage Detection via Fiber Optic Acoustic Sensing System
Authors: Yan Baoqiang , Zhang Keqing , Li Hao , Fan Cunzheng , Chen Junfeng , Shi Zhengxuan , Yan Zhijun , Sun Qizhen
Published: November 2022

A non-invasive online method for pipeline micro leakage detection and localization is proposed and demonstrated. The experimental results indicate that the proposed approach can successfully detect and locate the micro leakage with the diameter of 0.5 mm.
Noise suppression of DAS seismic data with cross-shape multi-head self-attention mechanism
Authors: Ji Lishan , Han Bing , Jing Qiang , Rao Yunjiang , Wu Huijuan
Published: November 2022

Self-attention mechanism can help neural networks pay more attention to noise. By using cross-shaped multi-head self-attention mechanism, we construct a neural network to improve the quality of distributed acoustic sensing signals in oil/gas exploration effectively.
Luminescence Thermometry via Intense Green Defect Emission from an Infrared-Pumped Fluorosilicate Optical Fiber
Authors: Pietros Alexander R. , Rebeszko Kacper , Rosenbaum Jacob R. , Stone Miranda P. , Hawkins Thomas , Cavillon Maxime , Ballato John , Dragic Peter D.
Published: November 2022

A barium fluorosilicate glass fiber, when pumped in the infrared, exhibits powerful green surface-like defect luminescence whose intensity is a strong function of temperature. Optical thermometry over the range from 25°C-130°C is demonstrated.