AMLGM

Principal: Matthew Bowles

Structural Engineer: ZFA

General Contractor: Mark Hahnlein

In Construction

3,200sf Private Residence

Date Completed: 2019

Interior renovation of an office in the historic Jackson Square district for a young and vibrant Venture Capital Firm

December 2018

Las Tablas, Madrid, Spain

Proposal for a public library + media center. Funded by the government of Madrid.

As the tech revolution continues to reshape how we access and share information, the concept of the Library must continue to evolve. Whether its the next generation of computer terminals, Virtual Reality and Augmented Reality interfaces or the influence of Artificial Intelligence, we believe that creating a place where the people of Las Tablas can learn about, access, and interact with these new technologies is paramount for the education of the region.

The design for MoM has fixed the traditional elements of a library (like the archive) that will continue to be important and intentionally left flexible the elements that will continue to evolve as technology and access to information transforms.

July, 2020

Surface Design - Landscape Architect

Arup - Structural Engineer

Location: San Jose, California

LEAPS & BOUNDS, a collaborative proposal between AMLGM and Surface Design, is the catalyst for a larger re-envisioning of San Jose as an active ecological, social and recreational corridor. At the epicenter of an emerging neighborhood with residential, commercial and cultural adjacencies, LEAPS & BOUNDS is uniquely positioned to become a vibrant destination. Nested inside the sculpture are park amenities such as a cafe, flexible community space and restrooms to draw in and support the community.

The curving sculptural forms are composed of a system of stiffened steel box beams. Triangular in section, the box beams are built of welded steel plates stiffened intermittently with transverse plates and steel purlins. The bridge and arch are supported at each end by large concrete piled mat foundations located outside the riparian zones and the box culvert easement.

Materially, LEAPS & BOUNDS is a medium to observe the qualities of light and water that are intrinsic to the site. The sculpture is clad in foamed aluminum panels - the surface subtly reflects the landscape and vibrant culture of San Jose. The panels are made from 100% recycled material. Embedded LED lights illuminate the sculpture at night and can be programmed by artists in celebration of holidays, events, and Sharks games!

A NEW CIVIC PARK FOR SAN JOSE

While aiming to create a cultural landmark, the project seeks to give back to the community. A truly sustainable park must also be a reflection of its community and a recreational resource for those who live nearby. Many considerations was taken to design the park -

anticipating a changing climate, sensible materail choice and integrating innovation to highlight change and process. LEAPS AND BOUNDS synthesizes all of these considerations into a landscape that is also beautiful, contemporary and exciting – a landscape that is rooted in local San Jose narratives and histories – a new iconic landmark for visitors to the city of San Jose.

LEAPS AND BOUNDS brings the vernacular Northern California landscape – Central Oak Woodland— to the heart of San Jose. The rolling grass hills and native oak trees celebrates the iconic landscape of the region and showcase seasonal change throughout the year.

TWO OXBOWS

Channeling the natural river erosion and sedimentation process and patterns, we created two ‘oxbow’ spaces as the Guadalupe River is disrupted by the architecutral sculpture. One oxbow mounds up and frames a new great lawn – the true civic heart of the City. On the other side, the earth is eroded away to reveal a vibrant wetland eco-tone which promotes water filtration and habitat restoration.

PRESERVING AND REUSING EXISTING SITE FEATURES

The new park preserves all the site features with cultural/historical significance. Existing trees are relocated within the new design, punctuating and framing open space while creating moments of shade and habitat.

Complete - 2019

Interior renovation of a three level historic building in Jackson Square.

Our design approach is shaped by a desire to bring the building back to it's original state. After decades of use as a traditional office, this required the removal of several interior walls and false ceilings.

An emphasis on preserving and revitalizing the heritage materials and structure has led to a restrained, and clean interior layout.

Located in foothills of the Sierra Nevada's in the small forestry town of Quincy, the Biomass Boiler Shed houses a wood fueled heating system that provides heat to an adjacent public health building. The shed pays homage to it's forestry surrounding through the usage of innovative wood building material called Cross Laminated Timber (CLT). Rather than utilizing a steel frame for structural support, the walls and roof of the shed are constructed of cross laminated timber, which supports the building simultaneously in bearing, shear and overturn. Essentially supersized sheet's of plywood, CLT provides a simple, sustainable, and aesthetically pleasing building structure. It's ease of erection and positive impacts on the environment via carbon sequestration make it a perfect compliment to the wood fueled heating system it houses. 

Clad in weathering steel, the simple form blends in with it's forested surroundings. A large format hangar door provides the large clearances needed to haul in and out the wood pellets for the biomass boiler.

The biomass boiler itself sources wood fuel from the byproducts of the nearby forestry trade. Instead of letting wood chip byproducts decompose and release carbon dioxide into the atmosphere, it is used as fuel to create heat for a sophisticated mechanism that provides energy to the public health building next door. The biomass boiler exhaust is filtered and releases 100% clean air back into the atmosphere.

Blending into the California landscape, this low slung dwelling is formed from three enclosed pavilions and a carport that wrap around the topography of the hill.  The house sits just below the crest of the hill giving it privacy from the road and a neighboring house.  

The North and East views are celebrated with large glass windows while the South and West facades have minimal glass concentrated in clerestory monitors; these light the major program spaces.

The building's structure uses prefabricated Cross Laminated Timber Panels for fast erection and a rustic and cost effective interior architectural finish.  Modest concrete cantilevers allow the house to appear as if it floats above the pastoral landscape.  

The house balances indoor and outdoor living.  Sliding doors open both sides of the dinning room to the outside and an fully outdoor dinning area and outdoor kitchen are located to the South of the living area.  The design minimizes the amount of required landscaping and only the garden next to the Southwest entrance court is cultivated in native plants.

CONCEPT

The most dynamic cities of the 21st century, such as New York, are anthropomorphic alloys that act as engines for innovation and social cohesion. These cities, with their continually evolving demographics, will forge the dynamic societies of the future. With the rapid rise of near instantaneous communication, a city’s’ livability  has gained prominence as an attractor for top minds. In order to secure its future as the leading global center, New York needs to continue to grow in smart ways. We see the opportunity to draw the energy of Manhattan out into the four other `boroughs without disrupting existing land use.

Urban Alloy proposes a residential typology rooted in the remnant spaces surrounding the intersection of transportation infrastructure, such as elevated train lines and freeway interchanges. With the proposed design and specified materials, we aim to optimize a heterogeneous and highly linked set of living environments capturing the air rights above these systems.

LIVING CONCEPT

The combination of escalating land prices and the acceleration of city migration have made urban renewal based modes of densification unfit for the contemporary city. Urban Alloy is the symbiotic re-purposing of the air rights above transportation corridors in New York. Urbanist’s have long touted the benefits of greater housing density near public transportation hubs - Urban Alloy proposes the advancement of this idea by locating the system directly on the intersections between surface and elevated train lines. We have chosen the intersection of the LIRR and the 7 train as a test case. The paradigm of one size fits all is obsolete. Urban citizens want diverse living situations where they can work, play, eat and rest within a pedestrian zone. As technology creates the market desire and a conditioning for personalization, society is more willing to pay a premium for spaces  that are tailored to their particular needs. See Program Diagram describing the wide range of living options.

SKIN CONCEPT

The wide range of programmatic options inspired a blend of floor plate geometries that transition from cylindrical to triangular from the base to the top of each tower.  This blend, along with constraints instilled from the site, generates a complex geometry that requires a new facade optimization paradigm. A composite or alloy of multiple flexible systems is required to optimize a skin in which every point has a unique environmental exposure. The system is deployed on a grid that follows the geometric directionality of the surface.  At each intersection of the grid, the normal of the surface is analyzed against its optimal solar shading and daylight transmitting requirements. An authored algorithm then generates vertical and horizontal fin profiles that blend with the profiles at adjacent nodes. The result is an optimized system of decorative metal fins that are unique to each specific solar orientation. Based upon the tenants of current solar facade design, the algorithm utilizes deep horizontal fins along southern exposure, and deeper vertical fins alongs east and west facing surfaces. This system generates specific fin depth and orientation for every point on the surface.

Location: Queens, New York

Date: 2014

Status: Winning entry Living Cities Design Competiion by Metropolis , Honorable Mention Evolo Skyscrapers

Structural Engineer: Nina Mahjoub, Holmes Structures

SITE PLANNING CONCEPT

In order to create connection, openness, and unity between the separate building programs, it was necessary to combine all of the program into a continuous building. Much of the site located on the south slope is steep and rocky. Our approach was to fit as much program into the flat portion of the site and place the additional program on the adjacent site.

We then create three bridges that connect the two sites: One exterior at at level 2 and two enclosed at level three. At the ground level the building entrances are adjacent and are connected by a crosswalk which spans the short street. In this way we create a dramatic connection to the adjacent site, while achieving a single continuous building.

By concentrating the program to the limited areas of the two sites allows the for preserving the existing trees on the main site and leaves the smaller uphill site open for a community teaching garden and the small site across the street open for a sculpture garden, bus stop and overflow parking.  The community teaching garden is an informal interface between the surrounding neighborhood and the new institution - giving the neighbors a sense of ownership in the institution.  The sculpture garden welcomes mass transit visitors and is part of the entrance sequence for the general public.

The third floor volume floats above the slope with a geometric clarity defined by the setback from the property line along the main street. The street side facade of the lower floors follow the same setback, while the north side of the floors below step and adjust to nestle against the hillside. This allows the building to have a light footprint, and integrate into the hillside with a reduced amount of cut and fill.

By making these concise moves, we have created a connected, open and unified landmark building in harmony with the surrounding environment; a gateway to the artists, scholars and natural beauty in the hills above.

PROGRAM DISTRIBUTION

Sectionally, the building is arranged into three main zones: The parking garage, the main program platforms, and the closed archive / offices above. The parking garage is entered via a ramp on the north east corner of the building. The garage ramps down, following the natural slope of the site to minimize excavation. The freight as well as the passenger elevator service the garage. The main level is composed of a series of 5 programmatic platforms that step up by a .75 meter increment in elevation from southwest to northeast. The final platform level is at the same elevation as the second floor, and thus progression from southwest to the northeast transports you from the first level to the second floor. The stepping allows for an informal separation between programmatic spaces even when they are not separated by actual partitions.

The first platform contains the cafe and art & book store. This is the most informal public space, directly accessible from the street and open long hours. The next platform is the lobby and orientation. This is place for getting info, buying tickets, and a display explaining how the open archive works. The next platform is the community space and theater, and forms the center/hub of the building. Here the spaces are double height, with ample daylight from a skylight above. This is a space where you can see into almost every other space - allowing visual interaction and connection between the complementary programs. The level change in this platform allows for seat steps for presentation and small group gathering. The stage in the theater is at the same level as the community platform, allowing for seamless connection between the community platform and the theater.

The next platform is the Project Gallery which is highly visible from the open archives, the community platform and the special exhibit gallery. This is a messy workspace where the process of art creation is on display. The final platform is the special exhibit gallery. This is white box gallery with a flexible floor plan containing movable partitions. Of the major programs, this is the most formal, and the furthest removed from the entrance/street.

The open archive acts as a connector or programmatic “glue” between the closed archive on the 3 rd floor and the major public programs on the platforms below. The open archive weaves through every public program, creating a cultural ecosystem. On the ground floor, it occurs in pockets along the circulation. On the second floor, it takes the form of catwalks and balconies that access the storage walls and overlook each space. When it reaches Pyeonchang 20-gil road, it becomes a sky bridge, connecting the main wing of the building to the cafe, book store and outdoor terrace. As it meanders through the building, the open archive connects people and program, facilitating research, learning, creation and enjoyment. Placing the permanent archive, research lab and office on the 3 rd floor allows the 1 st and second floors of the building to be almost entirely accessible to the public. The closed archive and the office space occupy each end of the third floor volume, while the research, reference and preparation programs are in the middle and act as intermediary, filtering media to and from the public display space below.  Here, the floor plate is one level, and spans across Pyeongchang 20-gil road with a second set of enclosed sky bridges to connect the offices to the main building.

OPEN ARCHIVE STORAGE + DISPLAY SYSTEM

In order to create a true Library-Museum- Archive hybrid, a new paradigm for display and storage is needed. We propose taking the bookcase (a staple of the library) and expanding its function an armature for the open archive. Every area of activity has an opportunity for display and storage in the open archive storage. Specifically, artifacts, records, tools products of what is created in the space adjacent to each open archive wall, will be stored and displayed within them. In its most primitive form, it is simply a bookshelf. However, with simple infilling of the sections, the open archive infrastructure can serve a multitude of purposes, including: walls, cabinets and drawers, painting display, sculpture display, flat files, bookcase, digital media display, whiteboard, window, door, structure, green wall etc… For instance, in the theater, storage for costumes and other props, that accumulate over time and create a record of the performances and events that have occurred there.  In the informal community kitchen there is storage space for cooking supplies and utensils as well as space to store physical documentation of the events that have taken place in that space. It is designed with flexibility in mind - allowing reconfiguration for future uses.

The project site is situated within Dubai Creek Harbour, one of Dubai's most ambitious mixed use waterfront developments. It's location is in close proximity to banks of the Dubai Creek and surrounded on all sides by mixed use residential towers. A a strong axis runs through the middle of the site; connecting the Calatrava Dubai Creek tower to the wildlife refuge and waterfront park at the shoreline. The high visibility and centrality of the project site calls for a design that is bold, iconic, and accessible.

In order to root the design in it's regional context, we looked to history. Prior to it's transition to an oil dominated economy, The United Arab Emirates and the cities along the Persian Gulf relied on pearl diving as a primary economic activity. These cities, and Dubai in particular, have an ancient and rich history of pearl diving dating back as far as seven thousand years. The pearl, a symbol of hope and cultural richness, provided a strong cultural reference from which to shape the design.

Ultimately, the Pearl Mosque is a parametric interpretation of traditional Islamic elements including the dome, the Muqarna, and the Mashrabiya pattern. The base geometry of the Pearl Mosque is a rectangular section of a large sphere - a direct reference to the pearl. This creates form that is circular in nature, and vaulted off the ground. A series of 5 smaller spheres intersect and cut out portions of the larger spheres. These voids bring in light through a modern interpretation of the traditional Muquarnas, and serve as entrances. The building rests on five structural pillars that support the dome and it's program above. Each pillar also contain functional elements such as stairs, elevators, and mechanical equipment. The main entrance is up a generous and sculptural spiral staircase underneath the dome in the shaded courtyard. The traditional relationship between the entrance courtyard and the prayer hall is enhanced in this design by placing the open air courtyard beneath the vaulted building and the elevated prayer hall, in an open-to-all covered courtyard. The public courtyard is created by lifting the prayer hall up into the spherical volume of the building and rotating it so that the Qibla Wall faces Mecca. This maneuver allows for a shaded gathering space under the dome entrance. This is a place of community gathering, and can function as additional prayer space as needed. It ultimately allows the axis from the Dubai Creek Tower to the park run underneath the building, allowing the surrounding context to weave through the Mosque. The exterior dome invites the surrounding community to rest and connect before and after prayers or as they move along the axis

In its past life, Park Avenue, North of Grand Central Station, contained a linear park, with ample green space, wide pedestrian paths and periodic plazas for sitting and gathering. Over time, the park was hedged in, resulting in the small and unusable traffic median strips we have today.

With the Centerline, we aim to restore a continuous band of walkable park and as well as athletic amenities beyond what a simple park normally provides; all without disrupting the existing functions of Park Avenue as major traffic artery.

In its current form, Park Avenue is known for its tall buildings that
are home to Fortune 500 companies. With its prestigious workforce, and international name recognition, Park Avenue is in need of an park and public amenity to match its stature.

We propose taking the green space from the medians, linking them together and elevating them in one continuous linear park in the form of an arc. The existing medians still remain, and the footprint of the existing medians forms the boundary for the enclosed active space underneath elevated park. At roughly 19’ wide and 2 stories in height, these spaces will bring athletic amenities to Park Avenue, including yoga studios, boxing gyms, weight rooms, spin classes
etc.

The park surface rises to 40’ high at its apex and touches down in the center of each median. It is supported by a series of arches that touch down midblock in the center of the existing median creating a rhythm that swells to the middle and dissipates in either direction.

To us, a park consists of a place of relaxation in greenery, but also a place of recreation and athletic activity. For the design of the elevated park surface, we have drawn inspiration from one of New York’s greatest parks - Central Park. Frederick Law Olmsted’s design included a hierarchy of paths that create different walking experiences. We have taken this idea and condensed it to a compact version with a main ‘fast’ path and secondary ‘slow’ paths that criss-cross along the length of the arc. Plazas and art courts nestle in between these paths and provide areas of community gathering and rest.

This 2 story + mezzanine live work loft in San Francisco's Mission creek neighborhood provided the bones for a structure deep renovation. Originally built in the mid 90's, the loft contained many stylistic elements of that era - such as thick, stem wall guard railing, extensive bullnosing, and less access to natural light than desired. The client came to AMLGM with the intention of renovating the loft to cutting edge specifications.

Main renovations include: custom water jet cut fractal pattern guardrail, new south facing window wall design with large format flyaway door opening onto a deck, custom direct vent fireplace, new custom kitchen and cabinetry, aquascaped freshwater aquarium, new stair layout allowing larger renovated bathrooms and wall finishes among many other refining details.

Location: San Francisco, CA

Size: 3,000 ft2

Date: 2016

Status: In progress

August 2017

Marina District, San Francisco, CA

Renovation of a three-story residence, currently in progress.

AMLGM worked with the developer to create an affordable icon to mark the entrance to a large redevelopment of a previously industrial area. The new building houses a cafe and retail space, and formally acts as a wayfinding device within the development. The large clerestory windows, and double height space with overlooking mezzanine create a spacious and light filled interior. In order to echo the character of the surrounding historic context, the cafe is composed of board formed concrete and standing seam metal.

Location: Houston, Texas

Date: 2015

May 2019

Pacific Islands

Modular cabin proposal for a hospitality client, currently in progress.

A new facade design and interior renovation of an existing ranch style house with views to the San Francisco Bay.

Situated at the entrance of the Xing Yuan New Town Botanical Gardens, the twisting form of the entrance building provides a symbolic gateway to the rare plant garden within. As the building curves around towards the main entrance, the walls of the building slowly twist, and lift away from the ground. The resulting geometry creates a dynamic space at the entrance of the park with a breathtaking ceiling and ticketing area. The building houses several different program elements, including ticketing, event space, and a gallery/gift shop. The building's occupiable green roof offers views out over the garden and the adjacent lake.

Location: Hanzhong, China

Size: 558 m2

Date: 2016

Status: In progress

Landscape Architect: Terrain Studio

The destruction of half the existing Mario Botta building (including half of the old Wattis Theater) created an opportunity to renovate and update the Wattis Theater to a new level of performance and function; all while respecting the intent of the original design.

The main challenge was to create a space that was optimal for four different uses with different and sometimes competing functional requirements.  The 275 seat, continental style theater is an important part of SFMOMA's programming and needed to accommodate film screenings, live theatrical and artistic performances, lectures & events as well as musical performances.  With both archival and a state of the art projection paired with a Meyer Constellation audio system, the updated theater uses a panoply of technology to be incredibly flexible.

The complex requirements were also met by wrapping the  raked seating with custom transondent slatted walls - allowing speakers mounted out of sight on the outer perimeter walls to project sound into the seating chamber without acoustic interference or visual distraction.  The ephemeral steel and aluminum wrapper also allows new ADA compliant access from the audience to the stage, that can visible or hidden depending on how that wall and the space around it is lit.

Location: San Francisco, CA

Size: 4,750 ft2

Date: 2016

Status: Completed

*Completed at EHDD Architecture

Located in the heart of Xing Yuan New Town park, the ‘Three Kingdoms’ Observation Tower forms a landmark and symbolic reference to an important historical period in the rich history of the Han culture. The form of the tower is expressed by a load-bearing engineered lumber exoskeleton, composed of 35 timber fins.  The fins, which are wide at the base of the tower so that they connect to form a solid surface, taper and twist as they move up the tower until they have rotated a full 90 degrees at top of the tower. At this point they are rotated to be completely open, and thus allow unobstructed views out.  The core of the tower is concrete and steel, and contains a high speed elevator along with two egress stairs.

The top five floors offer sweeping three hundred and sixty degree panoramas of the new town, lake, and mountains in the distance. The upper floors are programmed with a cafe, bar, gift shop, and observation deck.

Location: Hanzhong, China

Height: 67.2m

Date: 2016

Status: In progress

Landscape Architect: Terrain Studio

The Kinetic Wall is an interactive intervention that facilitates the serendipitous social interaction between pedestrians on Market Street.

The Kinetic Wall is composed of an array of lightweight tiles that rotate about their center in response to sensor input. The wall’s Kinect sensors monitor proximity and location of those within range of the wall. As one gets closer to the wall, the tiles are activated, and rotate to 45 degrees to allow some transparency. When two people are aligned at either side of the wall, the panels in the zone of said people rotate to 90 degrees, allowing full visual connection.

This sudden and unexpected face to face with a stranger provides a unique experience that strips away the anonymity of the urban street. During phases where no individual is within immediate range, the wall flutters and flirts, inviting people to investigate.

Location: San Francisco, CA

Date: 2014

Status: Completed

Collaborators: Louise Deguine, Michael Chamoures

AMLGM has assisted Guild and Company with a range of services including site selection, program test fits, interior design, investor pitch decks, and brand identity as they innovated in the hotel development space. As a key partner in the development process, AMLGM provided service in assessing the development potential  of over fifteen properties, creating concept layouts, construction cost and schedule estimates, and interior design boards.  AMLGM is always looking for innovative companies to partner with and we enjoy applying design thinking to a wide range of challenges.  

This 6 story new residential building fits into a 25’ wide by 95’ long site in the heart of the Tribeca landmark district.  At 15,000 square feet, the building is divided into three spacious and light filled apartments - each occupying 2 floors.  The penthouse has a double height top floor with mezzanine and a private roof deck.  To maximize usable area, the circulation core and mechanical systems of the building were designed with the care and precision of a swiss watch.  The interior layouts are coordinated with the facade to give every living space natural light and views.  The layouts are clean, simple and modern, with minimal circulation and maximum living space.

Location: TriBeCa, New York, New York

Size: 15,000 ft2

Date: 2012

Status: Completed

*Completed at Studio MDA

The Guide Booth was developed for Market Street as a way to provide pertinent information to citizens and visitors to the city by overlaying graphic information over the surrounding context. With the wave of virtual reality technology sweeping the hi-tech sector, AMLGM proposed democratic and affordable access to the unique opportunities provided by implementing analog augmented reality.
 

The guide booth is composed of a cylinder of clear aquarium grade acrylic. The surface of the acrylic is laser etched to provide a static graphic  that overlays perfectly onto the surrounding environment. The user sits in the center of the tube, and is offered 360 degree views of the immediate context - a view that is augmented with pertinent information by the laser etched diagram. This analog augmented reality layer provides an almost boundless range of data - including but not limited to: height and view obstruction of future developments, built environment from historical periods, flight paths, statistics, underground railways, submerged rivers etc...

Location: San Francisco, CA

Date: 2014

A collection of 10 retail pavilions, the Marina Village houses diverse programs to serve the surrounding park, business and residential neighborhoods. For this ground-up project, AMLGM has designed a collection of individual buildings, whose faceted roof form ecos the hull-form of the traditional Chinese sampan boat. The strong Cor-Ten roof forms define the glass enclosure below, and appear to float - giving the user the unique sense of being beneath the hull of  of a boat. The program enclosed in the twelve buildings ranges from a brewery, visitor center, cafe, sailing school, to a beer hall and convenience store.

Location: Hanzhong, China

Size: 2,062 m2

Date: 2016

Status: In progress

Landscape Architect: Terrain Studio

Created using the Java based program Processing, this scatter plot map utilizes census data and geolocation to provide an accurate representation of the concentration of cities and suburbs. Using zip code locations with corresponding latitude, longitude, state name and city name combined with a conical geographic projection algorithm commonly used by cartographers to translate spherical coordinates into a two dimensional map, allowed a single pixel to be placed in the exact centroid of each 5-digit zip code zone. Without superimposing any further data onto these points, they create a density map of the United States.

The next step was to alter each individual pixel based on another layer of data, specifically data illuminating the location of predominantly suburban zip codes. The US Census data on geography of housing units provided the number of structures in a variety of categories including 1 units/structure, 2 units/structure, 3-4 units/ structure and so on and so forth till 50 or more units/structure. By identifying the largest of these categories per each zip code and talking a ratio of this category over the total units in the zip code, provided a threshold to determine suburban versus urban. Suburban zip codes were abstracted as areas with a predominantly lower unit per structure grouping, whereas larger cities had a majority of larger unit to structure numbers. This ratio was linked to a color and size shift for each pixel; where the more units per zip code created a larger, redder dot, and the lesser units per zip code created a smaller greener dot.

Collaborators: Timon Covelli, Kenneth Hasegawa