Natural Hand Research Articles

Development of a Virtual Object Weight Recognition Algorithm Based on Pseudo-Haptics and the Development of Immersion Evaluation Technology

In this work, we propose a qualitative immersion evaluation technique based on a pseudo-haptic-based user-specific virtual object weight recognition algorithm and an immersive experience questionnaire (IEQ). The proposed weight recognition algorithm is developed by considering the moving speed of a natural hand tracking-based, user-customized virtual object using a camera in a VR headset and the realistic offset of the object’s weight when lifting it in real space. Customized speeds are defined to recognize customized weights. In addition, an experiment is conducted to measure the speed of lifting objects by weight in real space to obtain the natural object lifting speed weight according to the weight. In order to evaluate the weight and immersion of the developed simulation content, the participants’ qualitative immersion evaluation is conducted through three IEQ-based immersion evaluation surveys. Based on the analysis results of the experimental participants and the interview, this immersion evaluation technique shows whether it is possible to evaluate a realistic tactile experience in VR content. It is predicted that the proposed weight recognition algorithm and evaluation technology can be applied to various fields, such as content production and service support, in line with market demand in the rapidly growing VR, AR, and MR fields.

Accurate Continuous Prediction of 14 Degrees of Freedom of the Hand from Myoelectrical Signals through Convolutive Deep Learning.

Natural control of assistive devices requires continuous positional encoding and decoding of the user's volition. Human movement is encoded by recruitment and rate coding of spinal motor units. Surface electromyography provides some information on the neural code of movement and is usually decoded into finger joint angles. However, the current approaches to mapping the electrical signal into joint angles are unsatisfactory. There are no methods that allow precise estimation of joint angles during natural hand movements within the large numbers of degrees of freedom of the hand. We propose a framework to train a neural network from digital cameras and high-density surface electromyography from the extrinsic (forearm and wrist) hand muscles. Furthermore, we show that our 3D convolutional neural network optimally predicted 14 functional flexion/extension joints of the hand. We found in our experiments (4 subjects; mean age of 26±2.12 years) that our model can predict individual sinusoidal finger movement at different speeds (0.5 and 1.5 Hz), as well as two and three finger pinching, and hand opening and closing, covering 14 degrees of freedom of the hand. Our deep learning method shows a mean absolute error of 2.78±0.28 degrees with a mean correlation coefficient between predicted and expected joint angles of 0.94, 95% confidence interval (CI) [0.81, 0.98] with simulated real-time inference times lower than 30 milliseconds. These results demonstrate that our approach is capable of predicting the user's volition similar to digital cameras through a non-invasive wearable neural interface. Clinical relevance- This method establishes a viable interface that can be used for both immersive virtual reality medical simulations environments and assistive devices such as exoskeleton and prosthetics.

Discovering Exodus: Content, Interpretation, Reception by Ralph K. Hawkins

Reviewed by: Discovering Exodus: Content, Interpretation, Reception by Ralph K. Hawkins Brian Joseph Meldrum ralph k. hawkins, Discovering Exodus: Content, Interpretation, Reception (Discovering Biblical Texts; Grand Rapids: Eerdmans, 2021). Pp xiii + 308. Paper $22. The Discovering Biblical Texts series seeks to provide "student-friendly introductions to the books of the Bible" (p. ii). Hawkins's contribution to the series comes as the product of his teaching introductory courses on Exodus. His book serves as an excellent introduction to Exodus and contains an extensive bibliography. It would be a useful resource in any course on the Pentateuch generally or Exodus specifically. I would group H.'s thirteen chapters into three sections: chaps. 1–3, which provide an overview of past Exodus scholarship and introduce current questions about the exodus account's historicity and dating; chaps. 4–10, which present descriptions of Moses as Israel's leader, Yhwh as Israel's God, the law and the covenant as Israel's foundation, and the [End Page 483] tabernacle as Yhwh's dwelling; and chaps. 11–13, which treat Exodus's impact throughout the OT, its echoes in the NT, and its reception in Western culture, art, film, music, and politics. For H., Exodus unfolds as a series of crises that Israel endures and Yhwh overcomes: Israel's enslavement, Moses's hesitancy, Pharaoh's stubbornness, and so on. Exodus's distinctive narrative features—Israel's foundation and Yhwh's self-revelation—make the text a compelling story even for modern readers. Exodus ultimately shares the OT vision that Yhwh dwelled first among the Israelites in hopes "that all people would eventually come to acknowledge the Lord as God" (p. 11). Hawkins reviews the Documentary Hypothesis and presents the scholarly movement from source to literary criticism. Employing the latter as his method, he deals with "the final form of the text, in the context of the whole canon of Scripture, in order to determine what its final author or authors wanted to tell its readers" (p. 20). Regarding historicity, H. suggests that, while a lack of extrabiblical attestation is usually the reason why scholars dismiss the Bible's exodus account, the persistence of the exodus tradition throughout the OT and the fact that Israel's foundational myth often presents the people in a way that is "anything but noble" (p. 38) are also significant. H. presents the thirteenth century b.c.e. as "the consensus date for those who hold that a historical exodus occurred" and considers that the enduring quality of the exodus traditions, "the basis on which the nation of Israel's existence was predicated," are the strongest evidence for the exodus's reality (p. 39). Hawkins devotes chap. 5 to Moses's multifaceted depiction. He is a prophet, shepherd, judge, priestly figure, military leader, sanctuary builder, and divine mediator. Chapter 6 has a similar function, but here H. concentrates on a single aspect of Yhwh's portrayal in Exodus: God's power. Sections that detail the ten plagues and the parting of the Red Sea demonstrate "the Lord's mastery over nature and, indeed, all of creation. They were nature weapons in the hand of nature's God" (p. 108). In his treatment of Exodus's legal material, H. argues that suzerain–vassal treaties from the ancient Near East provide the closest parallels to the covenant ratification ceremony and the legal corpus contained in Exodus. H. reviews the constituent parts of suzerain–vassal treaties from their preambles through closing historical reports (pp. 111–14), and he provides a helpful chart detailing where the various sections of the treaties appear from Exodus 20 through Leviticus 27 (p. 116). H. then details the ancient Near Eastern context of the Ten Commandments. When considering the scope of Israel's law, H. notes, "While some of its laws were similar to those of other cultures, others were entirely unique and distinguished Israel from all other people in the region" (p. 129). Chapters 9 and 10 are particularly interesting. In chap. 9, H. interprets the themes of sin, rebellion, restoration, and renewal throughout Exodus as an occasion of good news, or the "gospel" of Israel in Exodus. Through Yhwh's self-revelation of the divine attributes in...

Improving the Robustness of Human-Machine Interactive Control for Myoelectric Prosthetic Hand During Arm Position Changing.

Robust classification of natural hand grasp type based on electromyography (EMG) still has some shortcomings in the practical prosthetic hand control, owing to the influence of dynamic arm position changing during hand actions. This study provided a framework for robust hand grasp type classification during dynamic arm position changes, improving both the “hardware” and “algorithm” components. In the hardware aspect, co-located synchronous EMG and force myography (FMG) signals are adopted as the multi-modal strategy. In the algorithm aspect, a sequential decision algorithm is proposed by combining the RNN-based deep learning model with a knowledge-based post-processing model. Experimental results showed that the classification accuracy of multi-modal EMG-FMG signals was increased by more than 10% compared with the EMG-only signal. Moreover, the classification accuracy of the proposed sequential decision algorithm improved the accuracy by more than 4% compared with other baseline models when using both EMG and FMG signals.

Bima ethnic medicinal plants as a natural hand sanitizer

This study aims to identify potential ethnic plants with medicinal properties in Bima Regency, Indonesia, as hand sanitizers. The type of research is experimental research, with a completely randomized design with two factorials: concentration of medicinal plant extracts and the ratio of alcohol and triclosan. The medicinal plants used are cherry, meniran (Phyllanthus Urinaria), the burden of straw, ketepeng (Senna alata), white turmeric, and guava, taken from the leaves. The results showed that the test plant extracts (cherry, meniran, pandanus, ketepeng, white turmeric, and guava) all had inhibitory power based on the test concentration. The ability of the inhibition of bacteria in the test plant extracts had different diameters of inhibition, where the average concentration of each concentration that had the lowest diameter of inhibition could be seen in the plant extract. In contrast, in the plant extract treatment, the inhibition zone began to appear at a concentration of 20%. In other treatments with other test plant extracts, a zone of the inhibition began to form at a concentration of 10%. Meanwhile, the plant extract which has the largest relative inhibition zone is the white turmeric plant extract. Tests on each test, namely cherry, meniran, ketepeng, white turmeric, and guava, used a concentration of 10%, and the burden of straw used an extract concentration of 20%. The overall hand sanitizer shows characteristics in the treatment concentration A1 = 4% and the concentration of alcohol and triclosan B2 = 1 ml: 1.5 g.pH of the hand sanitizer for various plants was obtained in a relatively similar pH range, namely in the range of 6.06 - 6.82.

Pendampingan Pencegahan Penularan Covid-19 Melalui Penyuluhan Kesehatan Dan Pembuatan Hand Sanitizer Di Lingkungan Asrama Panti

The world has now been impacted by COVID-19. Indonesia has recently become one of the countries that have been affected by COVID-19 with the highest number of COVID-19 cases in Asia. As the incidence of COVID-19 increases rapidly, it is necessary to prevent the transmission of COVID-19 especially in a populous area or dorm area. This community service was implemented by lecturers and nursing students of the Department of Nursing, Muhammadiyah Bengkulu University. Some programs included a health education of COVID-19 which is manifested in training activities for making natural hand sanitizer derived from betel leaf and lime. This program has now been implemented by students in Panti Sosial Bina Netra of Bengkulu.

Pembuatan Hand-Sanitizer Alami sebagai Upaya Peningkatan Pola Hidup Sehat Masyarakat Desa Sukorejo, Kabupaten Wonosobo

The development of the Covid-19 pandemic has had a significant impact on people's health, environment and economy. Public understanding of the importance of maintaining current health protocols is widely accessible. The high level of public knowledge is not always accompanied by the implementation of health protocols. The vigilance of the village community in facing the pandemic also has the potential to decrease due to the saturation effect on the community. Socialization and guidance with the community in an effort to deal with the pandemic is carried out by controlling and assisting in the manufacture of natural hand- sanitizers. The socialization carried out in Sukorejo Village, Wonosobo Regency can be categorized as successful. With the high enthusiasm of the community in participating in the program and a good understanding of the making of natural hand-sanitizers, it can be seen from a total of 16 participant respondents (results). Based on the post-test data conducted after the activity, 93.75% of participants were able to answer the questions correctly or 15 of the 16 participants answered correctly and only one participant did not answer correctly. On questions related to the composition of the ingredients used, 86.77% of participants answered correctly or 14 of 16 participants answered correctly. These results indicate that the community has a good understanding of the training materials. Sustainability of the program is carried out through the distribution of products resulting from activities and recipes for making hand-sanitizers through conversation groups so that they can be reproduced by the community.

Utilization of Betel Leaf Extract as a Natural Hand Sanitizer to Prevent The Spread of Covid-19 in MTS. S Al-Hidayah, Silo Baru Village, Asahan Regency

Betel leaf (Piper betle Linn) can be found in Silo Baru Village, Silau Laut District, Asahan Regency. This service activity aims to increase public knowledge about the content of betel leaf extract compounds as natural hand sanitizers, improve community skills in processing traditional betel leaf plants, and produce environmentally friendly hand sanitizer products made from betel leaf. Betel leaf, known as a natural antiseptic, analgesic and anti-inflammatory. Betel leaf extract contains flavonoid compounds, polyphenols, tannins and essential oils that can eradicate disease-causing germs. The content of compounds in betel leaf extract 15% and above is as effective as 70% ethanol which can reduce the number of bacteria and viruses. This activity is carried out using mentoring and training methods. The results of this activity include producing a natural hand sanitizer product that can support government programs in preventing the spread of the covid-19 virus, increasing local community knowledge through students and several teachers at MTs.S Al-Hidayah who participate in mentoring on how to manage and the introduction of the content of betel leaf extract to be used as the main ingredient in making natural hand sanitizers.

An empirical evaluation of two natural hand interaction systems in augmented reality

Human-computer interaction based on hand gesture tracking is not uncommon in Augmented Reality. In fact, the most recent optical Augmented Reality devices include this type of natural interaction. However, due to hardware and system limitations, these devices, more often than not, settle for semi-natural interaction techniques, which may not always be appropriate for some of the tasks needed in Augmented Reality applications. For this reason, we compare two different optical Augmented Reality setups equipped with hand tracking. The first one is based on a Microsoft HoloLens (released in 2016) and the other one is based on a Magic Leap One (released more than two years later). Both devices offer similar solutions for the visualization and registration problems but differ in the hand tracking approach, since the former uses a metaphoric hand-gesture tracking and the latter relies on an isomorphic approach. We raise seven research questions regarding these two setups, which we answer after performing two task-based experiments using virtual elements, of different sizes, that are moved using natural hand interaction. The questions deal with the accuracy and performance achieved with these setups and also with user preference, recommendation and perceived usefulness. For this purpose, we collect both subjective and objective data about the completion of these tasks. Our initial hypothesis was that there would be differences, in favor of the isomorphic and newer setup, in the use of hand interaction. However, the results surprisingly show that there are very small objective differences between these setups, and the isomorphic approach is not significantly better in terms of accuracy and mistakes, although it allows a faster completion of one of the tasks. In addition, no remarkable statistically significant differences can be found between the two setups in the subjective datasets gathered through a specific questionnaire. We also analyze the opinions of the participants in terms of usefulness, preference and recommendation. The results show that, although the Magic Leap-based system gets more support, the differences are not statistically significant.

Pelatihan Pembuatan Hand Sanitizer dari Bahan Dapur pada Masyarakat Desa Gabusbanaran

Hand sanitizer is one of the antiseptic ingredients in the form of a gel that is often used by many people as a practical hand washing medium. Hand sanitizer can be used anytime and anywhere, for example after handling money, before eating, after using the toilet and after taking out the trash. Partner problems in this activity are (1) partners do not know about the importance of preventing the spread of the Corona Virus (Covid-19) and implementing health protocols. (2) partners do not yet know the benefits and use values ​​of betel leaf plants, kaffir lime leaves, lime juice and lemongrass stalks as natural hand sanitizers. (3) lack of knowledge and skills of partners regarding the manufacture of this natural hand sanitizer. The purpose of this activity is as follows (1) to educate the public about the importance of preventing the spread of the Corona Virus (Covid-19) and implementing health protocols. (2) to increase the use value of betel leaf plants, kaffir lime leaves, lime juice and lemongrass stalks as natural hand sanitizers. (3) to improve the knowledge and skills of the community as well as to improve the community's economy during the pandemic. This service uses the Asset Based Community Development (ABCD) approach. The ABCD approach is an approach that leads to an independent and maximum understanding and internalization of assets, strengths, potential, and utilization. The conclusion obtained from this service activity is that there is an increase in the knowledge and skills of the Gabusbanaran Village community about how to make hand sanitizers from natural ingredients so that they can reduce additional costs for purchasing hand sanitizer products themselves in tackling the spread of Covid-19.

P25. NEUROSTITCH: NANOFABRICATION OF A HIGH RESOLUTION, BIOMIMETIC PERIPHERAL NERVE INTERFACE

PURPOSE: Over a million people suffer limb loss annually. Existing prostheses are cumbersome with a limited capacity to recapitulate natural hand motion. A stable, high-fidelity neural interface is necessary for 2-way communication between robotic prostheses and the patient’s neural circuitry. Existing neural interfaces are limited by the trade-off between invasiveness, resolution and longevity. METHODS: Ultra-small, flexible electrodes of the same dimensions and compliance as human axons were fabricated. A ‘needle and thread’ approach was used to implant the ultra-flexible devices. Using histology, 2-photon imaging, and the Sciatic Functional Index (SFI), we assessed the neural injury and foreign body reaction (FBR) associated with the device. The Intan system was used to stimulate and record. RESULTS: SFI demonstrates resolution of the initial neuropraxia to baseline by 2 weeks post-implantation. Action potentials were recorded within 30 minutes of device insertion. The size of the electrodes and proximity to individual axons permitted local stimulation — down to a single toe. Immunohistochemistry demonstrated an absence of FBR at 6 months. CONCLUSION: We have fabricated and inserted biomimetic intraneural electrodes with minimal and recoverable nerve injury and absence of FBR. The Neurostitch is capable high selectivity stimulation. This device represents a step forward in the development of a high-resolution, stable man/machine interface for next-generation neuroprostheses.

Model to Relationship the Speed of Hand Movements with the SEMG Signals from the Forearm

Various previous works have sought to achieve hand prostheses with natural movements. It has been employed tools to recognize patterns of surface electromyographic signals associated with each move. Although many successful studies classify some types of hand movements with high performance, the results show that the speed and strength must be analyzed so that the resulting moves are like those of a natural hand. This study evaluates 23 healthy subjects at two different speeds and six types of movements (pronation, supination, ulnar deviation, radial deviation, flexion, and extension -276 records of SEMG and Velocity). The objective was to obtain a model (transfer function) that would allow the relation of the velocity profiles with the tone of the forearm SEMG signals. The results show models with an average RMSE of 18.55% for slow movements using low-order systems (2). The parameters of the models between subjects are very different, with high coefficients of variation and standard deviations, which implies that the fitting must be for each subject.

Low Cost Design of 3D Printed Prosthetic Hand with IR Sensor

Abstract: One of the most common problem that disabled persons with amputation in upper limb they couldn’t buy a commercial prosthetic hand because it very expansive and up to thousands of dollars, Researchers and developer aspire to manufacture an prosthetic hand that performs the same functions and activates of natural hand. This paper includes the design and development of a low-cost prosthetic hand (less than a1000$) that capable of wearing from the persons who has amputation in the hand, this design represent a hand with five finger capable of movement and gripping the object, rotatable wrist and socket connect with amputation body capable to up and down the forearm . The design of this prosthetic hand possess 18 degree of freedom (DOF), 3DOFfor each finger except the thumb has 4DOF, 2DOFfor wrist and 2DOF for socket. The design prosthetic hand work by under actuated system 7 servo motors with tendon to move the fingers material (PLA). The design element and tesht in solid work to avoid overlapping between fingers and then after manufacture the design try it in real life to movement and gripping the object. Keywords: Prosthetic hand, degree of freedom, 3d printing, solid work.

Training For Making Handsanitizer From Betel Leaf Extract and Lime Oranges in Smp Negeri 2 Na Ix-X Sumberjo, Labuhanbatu Utara Regency

The purpose of community service is to overcome the demand for hand sanitizers during the current covid-19 pandemic. To overcome the limited supply of Handsanitizer, the author took the initiative to make it from natural ingredients from betel leaf extract andlime. Choosing to use natural ingredients that are easily found such as betel leaf and lime, because these materials are very easy to find in the neighborhood so it can make it easier to carry out the training. The location of this community service is at SMP Negeri 2 Na IX-X Sumberjo. The target of PKM this time is class IX-1 students, totaling 27 students. The method used is the method of observation, discussion and training. The main purpose of this PKM is to provide information to students of SMP Negeri 2 NA XI-X Sumberjo how to make natural hand sanitizer. And use the materials around them to make a natural hand sanitizer without alcohol.

Application of appropriate technology for making hand sanitizer with Citronella Oil

The vision of the orphanage is to create a society that is physically and mentally prosperous through empowering underprivileged children, progressively and professionally to form a generation of Khaira Ummah. To support this, the community service team needs to equip the orphanage children with knowledge and skills that are expected to provide creative ideas in entrepreneurship through the application of appropriate technology for the production of hand sanitizer from citronella oil. The resulting hand sanitizer has two functions as a natural hand antiseptic and mosquito repellent. The stages of this community service activity had been carried out by the methods of lectures, discussions, demonstrations, and practices. After the activities were completed, assistance and evaluation of activities were carried out. Almost all participants had been a level of understanding of all community service activities ( 90%) which included knowledge, skills, perception, and motivation. The evaluation of the activities had been carried out by 95s of participants, satisfied with this community service activity. This community Service activity had been succeeded in equipping the orphanage children and supporting the vision of the orphanage of Khaira Ummah.

Smart City using Sixth Sense Technology

Abstract: Villages are considered to be the heart of our nation India and the economic development of villages along with cities is also important to us. Therefore, in order to bring development to the grass-root level, the focus should be on the progress of the village. ‘Sixth Sense’ is a gesture interface that enhances the physical world around us with digital information and allows us to use natural hand gestures to interact with that information. Sixth Sense technology helps to bridge this gap between the tangible and intangible world. But the most important piece of information in this new age of technology that helps a person make the right decision is something that cannot be seen and analyzed by our natural senses. Sixth Sense Technology Concept is an attempt to connect this data to the real world in the digital world. Using this sixth sense technology we can easily transform or develop developing countries/cities into smart cities / developed countries. Keywords: Sixth Sense Technology, digital world, natural hand gestures, IOT

Utilization of Aur-Aur Grass as A Natural Hand Sanitizer in Order To Prevent The Spread of The Covid-19 Virus

Indonesia is currently amid a Covid-19 virus pandemic. One of the efforts that can be done to prevent the spread of the Covid-19 virus is to wash your hands with soap, or you can use a hand sanitizer. However, hand sanitizers are mostly made of chemicals, many people feel side effects including dry skin, dermatitis, and irritation. This research aims to make hand sanitizer products made from natural ingredients, namely from extracts of aur-aur grass (Commelina diffusa Burm F.). Phytochemical tests showed that aur-aur grass contained 5,188.73 ppm flavonoid compounds, 8,673.60 ppm total phenol (tannin), and 466.30 ppm alkaloids. The manufacture of hand sanitizers was carried out in four variations with each sample having aur-aur extract levels of 5%, 10%, 15%, and 20%. Of the existing hand sanitizer products, all of them have a pH of ±5 and get good responses from satisfaction values ​​above 80%. Hand sanitizer products also can inhibit bacterial growth. The increase in extract levels in the hand sanitizer is directly proportional to the ability to inhibit bacteria, as shown by sample D which has an average inhibition zone of 9.77 mm.

A comparative analysis of two immersive virtual reality systems in the integration and visualization of natural hand interaction

It is generally accepted that the use of natural interaction provides a positive impact in Virtual Reality (VR) applications. Therefore, it is important to understand what is the best way to integrate and visualize this feature in VR. For this reason, this paper presents a comparative study of the integration of natural hand interaction in two immersive VR systems: a Cave Audio Visual Experience (CAVE) system –where users’ real hands are visible– and a non-see-through Head-Mounted Display (HMD) system –where only a virtual representation of the hands is possible–. In order to test the suitability of using this type of interaction in a CAVE and compare it to an HMD, we raise six research questions related to task performance, usability and perception differences regarding natural hand interaction with these two systems. To answer these questions, we designed an experiment where users have to complete a pick-and-place task with virtual balls and a text-typing task with virtual keyboards. In both systems, the same tracking technology, based on a Leap Motion device, was used. To the best of our knowledge this is the first academic work addressing a comparison of this type. Objective and subjective data were collected during the experiments. The results show that the HMD has a performance, preference and usability advantage over the CAVE with respect to the integration of natural hand interaction. Nevertheless, the results also show that the CAVE system can be, as well, successfully used in combination with an optical hand tracking device.

Potential of Antibacterial Activity in Natural Ingredients (Betel Leaves, Basil Leaves, Avocado Seeds, Lemongrass, Garlic) As Natural Hand Sanitizers: Journal Review

In an effort to reduce the use of alcohol-based hand sanitizers because of their quite dangerous impact on the skin, natural hand sanitizers are an alternative. The antibacterial substances in betel leaves, basil leaves, avocado seeds, lemongrass, and garlic can be used as materials for natural hand sanitizers. The purpose of this study was to collect, identify, and compare journals about the effectiveness of antibacterial agents in natural ingredients that are used as natural hand sanitizers. Using the journal review method through reviewing the contents of journals that discuss antibacterial activity, the results show that the five phytochemical compounds contain active antibacterial compounds so that they have the potential to make natural hand sanitizers, as well as the antibacterial inhibition zone of these five ingredients showing high results with strong to very strong categories. It was concluded that the five ingredients could be used as natural hand sanitizer materials. However, betel leaves are preferred because of their largest inhibition zone, 3.1-4.0 cm.

Fun Handwashing and Training on Making Natural Handsanitizer

Regular hand washing is an important part of the WHO's COVID-19 prevention campaign and recent simulations show that much can be achieved in slowing the spread of the virus through increased hand washing. This is what underlies the community service activities located at LKSA ITTAQOLLAH as a simple step to cultivate hand washing culture while providing additional knowledge and skills to participants about making natural hand sanitizers. The preparatory stage of this activity is observing the location of the activity and managing the administration of the activity, as well as coordinating with the manager of LKSA ITTAQOLLAH. This community service activity is carried out by delivering counseling materials first. Counseling materials about the benefits of handwashing and the correct procedures for handwasing. The activity was continued with hands-on practice of handwasing, and ended with training on making natural hand sanitizers. The conclusion obtained after the implementation of this community service activity, is that the participants of the activity were very enthusiastic, the children participated in the activity from beginning to end. Increased knowledge about health in this case about how to wash hands with soap correctly and skills in this case the practice of making hand sanitizers are needed to improve the health status of children in LKSA ITTAQOLLAH.